./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:21:55,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:21:55,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:21:55,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:21:55,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:21:55,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:21:55,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:21:55,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:21:55,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:21:55,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:21:55,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:21:55,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:21:55,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:21:55,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:21:55,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:21:55,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:21:55,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:21:55,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:21:55,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:21:55,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:21:55,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:21:55,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:21:55,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:21:55,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:21:55,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:21:55,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:21:55,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:21:55,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:21:55,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:21:55,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:21:55,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:21:55,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:21:55,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:21:55,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:21:55,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:21:55,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:21:55,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:21:55,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:21:55,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:21:55,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:21:55,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:21:55,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-19 07:21:55,661 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:21:55,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:21:55,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:21:55,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:21:55,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:21:55,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:21:55,664 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:21:55,665 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:21:55,665 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:21:55,665 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:21:55,666 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:21:55,666 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:21:55,667 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:21:55,667 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:21:55,667 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:21:55,668 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:21:55,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:21:55,668 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:21:55,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:21:55,670 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:21:55,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:21:55,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:21:55,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:21:55,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:21:55,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:21:55,672 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:21:55,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:21:55,672 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:21:55,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:21:55,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:21:55,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:21:55,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:55,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:21:55,675 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:21:55,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:21:55,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:21:55,677 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:21:55,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:21:55,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:21:55,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:21:55,679 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_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2022-11-19 07:21:56,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:21:56,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:21:56,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:21:56,151 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:21:56,152 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:21:56,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-11-19 07:21:56,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/data/0c674c918/29c5fa515239447597681dc18d966b7e/FLAG4a962495a [2022-11-19 07:21:56,944 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:21:56,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-11-19 07:21:56,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/data/0c674c918/29c5fa515239447597681dc18d966b7e/FLAG4a962495a [2022-11-19 07:21:57,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/data/0c674c918/29c5fa515239447597681dc18d966b7e [2022-11-19 07:21:57,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:21:57,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:21:57,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:57,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:21:57,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:21:57,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40dc7843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57, skipping insertion in model container [2022-11-19 07:21:57,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:21:57,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:21:57,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:21:57,592 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:21:57,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:21:57,647 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:21:57,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57 WrapperNode [2022-11-19 07:21:57,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:21:57,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:21:57,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:21:57,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:21:57,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,693 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-11-19 07:21:57,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:21:57,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:21:57,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:21:57,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:21:57,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,718 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:21:57,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:21:57,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:21:57,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:21:57,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (1/1) ... [2022-11-19 07:21:57,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:21:57,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:57,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:21:57,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:21:57,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:21:57,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:21:57,938 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:21:57,941 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:21:58,197 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:21:58,264 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:21:58,264 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:21:58,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:58 BoogieIcfgContainer [2022-11-19 07:21:58,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:21:58,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:21:58,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:21:58,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:21:58,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:21:57" (1/3) ... [2022-11-19 07:21:58,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67eef4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:58, skipping insertion in model container [2022-11-19 07:21:58,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:57" (2/3) ... [2022-11-19 07:21:58,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67eef4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:58, skipping insertion in model container [2022-11-19 07:21:58,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:58" (3/3) ... [2022-11-19 07:21:58,286 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-11-19 07:21:58,313 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:21:58,314 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 07:21:58,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:21:58,430 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ab276d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:21:58,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-19 07:21:58,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:21:58,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:58,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:21:58,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:21:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:58,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2633557, now seen corresponding path program 1 times [2022-11-19 07:21:58,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:58,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273792741] [2022-11-19 07:21:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:58,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:58,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:58,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273792741] [2022-11-19 07:21:58,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273792741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:58,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:58,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:21:58,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088506930] [2022-11-19 07:21:58,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:58,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:58,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:58,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:58,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:58,900 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:59,055 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2022-11-19 07:21:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:59,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 07:21:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:59,073 INFO L225 Difference]: With dead ends: 48 [2022-11-19 07:21:59,073 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 07:21:59,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:59,089 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:59,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 18 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 07:21:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-11-19 07:21:59,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-11-19 07:21:59,147 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 4 [2022-11-19 07:21:59,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:59,148 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-11-19 07:21:59,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,151 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-11-19 07:21:59,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:21:59,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:59,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:21:59,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:21:59,154 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:21:59,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:59,155 INFO L85 PathProgramCache]: Analyzing trace with hash 81640345, now seen corresponding path program 1 times [2022-11-19 07:21:59,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:59,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635945337] [2022-11-19 07:21:59,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:59,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:59,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:59,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635945337] [2022-11-19 07:21:59,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635945337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:59,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:59,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:21:59,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664687386] [2022-11-19 07:21:59,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:59,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:59,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:59,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:59,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:59,264 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:59,334 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2022-11-19 07:21:59,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:59,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:21:59,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:59,336 INFO L225 Difference]: With dead ends: 27 [2022-11-19 07:21:59,337 INFO L226 Difference]: Without dead ends: 25 [2022-11-19 07:21:59,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:59,339 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:59,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:21:59,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-19 07:21:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-11-19 07:21:59,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.5) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2022-11-19 07:21:59,348 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 5 [2022-11-19 07:21:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:59,350 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-11-19 07:21:59,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2022-11-19 07:21:59,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:21:59,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:59,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:21:59,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:21:59,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:21:59,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:59,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1764965715, now seen corresponding path program 1 times [2022-11-19 07:21:59,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:59,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493574816] [2022-11-19 07:21:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:59,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:59,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:59,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493574816] [2022-11-19 07:21:59,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493574816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:59,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:59,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:21:59,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308433491] [2022-11-19 07:21:59,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:59,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:59,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:59,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:59,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:59,493 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:59,535 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2022-11-19 07:21:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:59,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 07:21:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:59,538 INFO L225 Difference]: With dead ends: 24 [2022-11-19 07:21:59,538 INFO L226 Difference]: Without dead ends: 23 [2022-11-19 07:21:59,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:59,540 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:59,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:59,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-19 07:21:59,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-19 07:21:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.4) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-19 07:21:59,549 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 6 [2022-11-19 07:21:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:59,552 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-19 07:21:59,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,553 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-19 07:21:59,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:21:59,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:59,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:59,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:21:59,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:21:59,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1120637754, now seen corresponding path program 1 times [2022-11-19 07:21:59,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:59,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499960368] [2022-11-19 07:21:59,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:59,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:59,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:59,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499960368] [2022-11-19 07:21:59,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499960368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:21:59,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:21:59,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:21:59,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268395196] [2022-11-19 07:21:59,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:21:59,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:21:59,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:21:59,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:21:59,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:59,705 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:21:59,740 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-11-19 07:21:59,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:21:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 07:21:59,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:21:59,746 INFO L225 Difference]: With dead ends: 30 [2022-11-19 07:21:59,748 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 07:21:59,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:21:59,751 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:21:59,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:21:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 07:21:59,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2022-11-19 07:21:59,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-19 07:21:59,772 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 7 [2022-11-19 07:21:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:21:59,775 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-19 07:21:59,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:21:59,776 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-19 07:21:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:21:59,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:21:59,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:21:59,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:21:59,779 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:21:59,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:21:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash 189213058, now seen corresponding path program 1 times [2022-11-19 07:21:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:21:59,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485447404] [2022-11-19 07:21:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:21:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:59,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:21:59,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485447404] [2022-11-19 07:21:59,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485447404] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:21:59,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431521064] [2022-11-19 07:21:59,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:21:59,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:21:59,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:21:59,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:21:59,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:21:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:21:59,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:22:00,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:00,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:00,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:22:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:00,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431521064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:22:00,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [492631781] [2022-11-19 07:22:00,184 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:22:00,184 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:22:00,189 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:22:00,197 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:22:00,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:22:00,759 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:22:01,162 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '354#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (not (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-19 07:22:01,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:22:01,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:22:01,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2022-11-19 07:22:01,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556810786] [2022-11-19 07:22:01,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:22:01,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:22:01,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:01,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:22:01,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:22:01,167 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:01,262 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2022-11-19 07:22:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:22:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:22:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:01,265 INFO L225 Difference]: With dead ends: 59 [2022-11-19 07:22:01,266 INFO L226 Difference]: Without dead ends: 57 [2022-11-19 07:22:01,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:22:01,276 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 40 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:01,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 30 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:22:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-19 07:22:01,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 40. [2022-11-19 07:22:01,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.263157894736842) internal successors, (48), 39 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:01,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2022-11-19 07:22:01,291 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 10 [2022-11-19 07:22:01,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:01,292 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2022-11-19 07:22:01,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:01,293 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2022-11-19 07:22:01,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:22:01,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:01,294 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-11-19 07:22:01,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:01,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:01,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:22:01,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:01,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1890673500, now seen corresponding path program 2 times [2022-11-19 07:22:01,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:22:01,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620297942] [2022-11-19 07:22:01,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:01,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:22:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:01,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:22:01,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620297942] [2022-11-19 07:22:01,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620297942] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:22:01,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034779578] [2022-11-19 07:22:01,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:22:01,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:01,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:22:01,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:22:01,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:22:01,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-19 07:22:01,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:01,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:22:01,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:01,987 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:01,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:22:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:02,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034779578] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:22:02,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1344004830] [2022-11-19 07:22:02,118 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:22:02,119 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:22:02,119 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:22:02,119 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:22:02,120 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:22:02,484 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:22:02,827 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '615#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (not (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-19 07:22:02,827 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:22:02,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:22:02,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-19 07:22:02,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147086525] [2022-11-19 07:22:02,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:22:02,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:22:02,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:02,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:22:02,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2022-11-19 07:22:02,830 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:03,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:03,071 INFO L93 Difference]: Finished difference Result 171 states and 221 transitions. [2022-11-19 07:22:03,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:22:03,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 07:22:03,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:03,073 INFO L225 Difference]: With dead ends: 171 [2022-11-19 07:22:03,074 INFO L226 Difference]: Without dead ends: 169 [2022-11-19 07:22:03,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2022-11-19 07:22:03,076 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 163 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:03,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 68 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:22:03,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-19 07:22:03,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 100. [2022-11-19 07:22:03,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.2244897959183674) internal successors, (120), 99 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:03,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 120 transitions. [2022-11-19 07:22:03,094 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 120 transitions. Word has length 22 [2022-11-19 07:22:03,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:03,094 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 120 transitions. [2022-11-19 07:22:03,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:03,095 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 120 transitions. [2022-11-19 07:22:03,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-19 07:22:03,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:03,097 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 1, 1, 1, 1] [2022-11-19 07:22:03,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:03,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:22:03,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:22:03,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:03,311 INFO L85 PathProgramCache]: Analyzing trace with hash -388861424, now seen corresponding path program 3 times [2022-11-19 07:22:03,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:22:03,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872502891] [2022-11-19 07:22:03,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:03,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:22:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:03,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:22:03,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872502891] [2022-11-19 07:22:03,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872502891] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:22:03,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778401874] [2022-11-19 07:22:03,779 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:22:03,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:03,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:22:03,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:22:03,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:22:03,873 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:22:03,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:03,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:22:03,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:03,989 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:03,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:22:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:04,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778401874] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:22:04,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1907213344] [2022-11-19 07:22:04,412 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:22:04,413 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:22:04,413 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:22:04,413 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:22:04,414 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:22:04,731 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:22:05,062 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1238#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (not (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-19 07:22:05,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:22:05,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:22:05,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-11-19 07:22:05,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833819859] [2022-11-19 07:22:05,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:22:05,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-19 07:22:05,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:05,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-19 07:22:05,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=528, Unknown=0, NotChecked=0, Total=870 [2022-11-19 07:22:05,072 INFO L87 Difference]: Start difference. First operand 100 states and 120 transitions. Second operand has 24 states, 23 states have (on average 4.0) internal successors, (92), 23 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:05,533 INFO L93 Difference]: Finished difference Result 540 states and 689 transitions. [2022-11-19 07:22:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-19 07:22:05,534 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.0) internal successors, (92), 23 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-19 07:22:05,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:05,537 INFO L225 Difference]: With dead ends: 540 [2022-11-19 07:22:05,538 INFO L226 Difference]: Without dead ends: 538 [2022-11-19 07:22:05,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=342, Invalid=528, Unknown=0, NotChecked=0, Total=870 [2022-11-19 07:22:05,540 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 407 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:05,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 140 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:22:05,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-19 07:22:05,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 220. [2022-11-19 07:22:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.2110091743119267) internal successors, (264), 219 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:05,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 264 transitions. [2022-11-19 07:22:05,570 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 264 transitions. Word has length 46 [2022-11-19 07:22:05,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:05,570 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 264 transitions. [2022-11-19 07:22:05,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.0) internal successors, (92), 23 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:05,571 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 264 transitions. [2022-11-19 07:22:05,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-19 07:22:05,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:05,574 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 1, 1, 1, 1] [2022-11-19 07:22:05,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:05,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 07:22:05,782 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:22:05,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:05,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1768749944, now seen corresponding path program 4 times [2022-11-19 07:22:05,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:22:05,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072238105] [2022-11-19 07:22:05,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:05,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:22:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:07,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:22:07,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072238105] [2022-11-19 07:22:07,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072238105] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:22:07,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456495056] [2022-11-19 07:22:07,055 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:22:07,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:07,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:22:07,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:22:07,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:22:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:07,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-19 07:22:07,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:07,409 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:07,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:22:08,774 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:08,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456495056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:22:08,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [193603210] [2022-11-19 07:22:08,777 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:22:08,777 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:22:08,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:22:08,778 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:22:08,778 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:22:09,024 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:22:09,244 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2761#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (not (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-19 07:22:09,244 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:22:09,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:22:09,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2022-11-19 07:22:09,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415480135] [2022-11-19 07:22:09,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:22:09,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-19 07:22:09,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:09,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-19 07:22:09,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1236, Invalid=1520, Unknown=0, NotChecked=0, Total=2756 [2022-11-19 07:22:09,250 INFO L87 Difference]: Start difference. First operand 220 states and 264 transitions. Second operand has 48 states, 47 states have (on average 4.0) internal successors, (188), 47 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:10,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:10,468 INFO L93 Difference]: Finished difference Result 1818 states and 2273 transitions. [2022-11-19 07:22:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-19 07:22:10,469 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.0) internal successors, (188), 47 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-11-19 07:22:10,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:10,483 INFO L225 Difference]: With dead ends: 1818 [2022-11-19 07:22:10,483 INFO L226 Difference]: Without dead ends: 1816 [2022-11-19 07:22:10,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1236, Invalid=1520, Unknown=0, NotChecked=0, Total=2756 [2022-11-19 07:22:10,487 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1428 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:10,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 282 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 07:22:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2022-11-19 07:22:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 460. [2022-11-19 07:22:10,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 458 states have (on average 1.205240174672489) internal successors, (552), 459 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 552 transitions. [2022-11-19 07:22:10,566 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 552 transitions. Word has length 94 [2022-11-19 07:22:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:10,569 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 552 transitions. [2022-11-19 07:22:10,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.0) internal successors, (188), 47 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 552 transitions. [2022-11-19 07:22:10,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-19 07:22:10,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:10,589 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 1, 1, 1, 1] [2022-11-19 07:22:10,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:10,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:10,798 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:22:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 926137928, now seen corresponding path program 5 times [2022-11-19 07:22:10,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:22:10,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114436471] [2022-11-19 07:22:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:22:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:14,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:14,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:22:14,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114436471] [2022-11-19 07:22:14,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114436471] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:22:14,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910045407] [2022-11-19 07:22:14,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:22:14,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:14,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:22:14,786 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:22:14,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:22:15,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2022-11-19 07:22:15,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:15,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-19 07:22:15,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:15,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:15,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:22:19,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:19,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910045407] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:22:19,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [673475955] [2022-11-19 07:22:19,831 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:22:19,832 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:22:19,832 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:22:19,833 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:22:19,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:22:20,045 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:22:20,361 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6731#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (not (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-19 07:22:20,361 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:22:20,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:22:20,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2022-11-19 07:22:20,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456704042] [2022-11-19 07:22:20,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:22:20,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-19 07:22:20,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:20,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-19 07:22:20,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4764, Invalid=5336, Unknown=0, NotChecked=0, Total=10100 [2022-11-19 07:22:20,371 INFO L87 Difference]: Start difference. First operand 460 states and 552 transitions. Second operand has 96 states, 95 states have (on average 4.0) internal successors, (380), 95 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:22:25,758 INFO L93 Difference]: Finished difference Result 6534 states and 8033 transitions. [2022-11-19 07:22:25,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-19 07:22:25,760 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.0) internal successors, (380), 95 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2022-11-19 07:22:25,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:22:25,787 INFO L225 Difference]: With dead ends: 6534 [2022-11-19 07:22:25,788 INFO L226 Difference]: Without dead ends: 6532 [2022-11-19 07:22:25,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4764, Invalid=5336, Unknown=0, NotChecked=0, Total=10100 [2022-11-19 07:22:25,796 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2869 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2869 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:22:25,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2869 Valid, 570 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 07:22:25,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2022-11-19 07:22:25,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 940. [2022-11-19 07:22:25,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 938 states have (on average 1.2025586353944564) internal successors, (1128), 939 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1128 transitions. [2022-11-19 07:22:25,906 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1128 transitions. Word has length 190 [2022-11-19 07:22:25,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:22:25,907 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1128 transitions. [2022-11-19 07:22:25,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.0) internal successors, (380), 95 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:22:25,908 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1128 transitions. [2022-11-19 07:22:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-19 07:22:25,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:22:25,914 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 1, 1, 1, 1] [2022-11-19 07:22:25,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:22:26,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:26,128 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:22:26,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:22:26,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2122843112, now seen corresponding path program 6 times [2022-11-19 07:22:26,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:22:26,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904124225] [2022-11-19 07:22:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:22:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:38,187 INFO L134 CoverageAnalysis]: Checked inductivity of 17766 backedges. 0 proven. 17766 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:38,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:22:38,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904124225] [2022-11-19 07:22:38,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904124225] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:22:38,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991851456] [2022-11-19 07:22:38,188 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:22:38,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:22:38,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:22:38,189 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:22:38,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:22:38,480 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:22:38,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:22:38,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-19 07:22:38,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:22:39,425 INFO L134 CoverageAnalysis]: Checked inductivity of 17766 backedges. 0 proven. 17766 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:39,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:22:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 17766 backedges. 0 proven. 17766 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:54,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991851456] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:22:54,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1057115507] [2022-11-19 07:22:54,851 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:22:54,851 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:22:54,852 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:22:54,852 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:22:54,852 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:22:55,054 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:22:55,445 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18189#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (not (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-19 07:22:55,446 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:22:55,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:22:55,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2022-11-19 07:22:55,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055461059] [2022-11-19 07:22:55,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:22:55,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-11-19 07:22:55,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:22:55,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-11-19 07:22:55,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18732, Invalid=19880, Unknown=0, NotChecked=0, Total=38612 [2022-11-19 07:22:55,471 INFO L87 Difference]: Start difference. First operand 940 states and 1128 transitions. Second operand has 192 states, 191 states have (on average 4.0) internal successors, (764), 191 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:23:41,726 INFO L93 Difference]: Finished difference Result 24606 states and 29921 transitions. [2022-11-19 07:23:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-11-19 07:23:41,728 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.0) internal successors, (764), 191 states have internal predecessors, (764), 0 states have call successors, (0), 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 382 [2022-11-19 07:23:41,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:23:41,832 INFO L225 Difference]: With dead ends: 24606 [2022-11-19 07:23:41,832 INFO L226 Difference]: Without dead ends: 24604 [2022-11-19 07:23:41,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1239 GetRequests, 1044 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1609 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=18732, Invalid=19880, Unknown=0, NotChecked=0, Total=38612 [2022-11-19 07:23:41,853 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 5641 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 966 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5641 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 966 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:23:41,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5641 Valid, 1144 Invalid, 2116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [966 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:23:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24604 states. [2022-11-19 07:23:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24604 to 1900. [2022-11-19 07:23:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1898 states have (on average 1.2012644889357218) internal successors, (2280), 1899 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:42,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2280 transitions. [2022-11-19 07:23:42,237 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2280 transitions. Word has length 382 [2022-11-19 07:23:42,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:23:42,238 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2280 transitions. [2022-11-19 07:23:42,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.0) internal successors, (764), 191 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:23:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2280 transitions. [2022-11-19 07:23:42,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2022-11-19 07:23:42,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:23:42,268 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 1, 1, 1, 1] [2022-11-19 07:23:42,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:23:42,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:23:42,479 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-19 07:23:42,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:23:42,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2008314072, now seen corresponding path program 7 times [2022-11-19 07:23:42,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:23:42,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862529799] [2022-11-19 07:23:42,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:23:42,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:23:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 72390 backedges. 0 proven. 72390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:23,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:24:23,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862529799] [2022-11-19 07:24:23,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862529799] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:24:23,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538670387] [2022-11-19 07:24:23,395 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 07:24:23,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:24:23,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:24:23,399 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:24:23,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b56ccfa8-2597-42c1-8337-d81b2f920fd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:24:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:23,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-19 07:24:24,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:24:25,762 INFO L134 CoverageAnalysis]: Checked inductivity of 72390 backedges. 0 proven. 72390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:25,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:25:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 72390 backedges. 0 proven. 72390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:25:26,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538670387] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:25:26,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1308638150] [2022-11-19 07:25:26,285 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:25:26,285 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:25:26,285 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:25:26,286 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:25:26,286 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:25:26,478 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:25:27,135 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '54991#(and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~m~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (not (<= |ULTIMATE.start_main_~y~0#1| 2147483646)) (<= |ULTIMATE.start_main_~m~0#1| 2147483647))' at error location [2022-11-19 07:25:27,136 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:25:27,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:25:27,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 382 [2022-11-19 07:25:27,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364169276] [2022-11-19 07:25:27,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:25:27,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-11-19 07:25:27,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:25:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-11-19 07:25:27,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74316, Invalid=76616, Unknown=0, NotChecked=0, Total=150932 [2022-11-19 07:25:27,178 INFO L87 Difference]: Start difference. First operand 1900 states and 2280 transitions. Second operand has 384 states, 383 states have (on average 4.0) internal successors, (1532), 383 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)