./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-009.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/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_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-009.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/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 32bit --witnessprinter.graph.data.programhash 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 --- 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 08:29:50,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:29:50,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:29:50,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:29:50,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:29:50,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:29:50,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:29:50,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:29:50,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:29:50,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:29:50,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:29:50,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:29:50,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:29:50,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:29:50,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:29:50,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:29:50,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:29:50,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:29:50,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:29:50,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:29:50,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:29:50,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:29:50,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:29:50,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:29:50,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:29:50,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:29:50,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:29:50,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:29:50,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:29:50,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:29:50,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:29:50,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:29:50,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:29:50,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:29:50,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:29:50,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:29:50,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:29:50,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:29:50,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:29:50,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:29:50,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:29:50,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:29:50,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:29:50,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:29:50,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:29:50,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:29:50,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:29:50,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:29:50,776 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:29:50,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:29:50,777 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:29:50,777 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:29:50,777 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:29:50,778 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:29:50,778 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:29:50,778 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:29:50,779 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:29:50,779 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:29:50,779 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:29:50,780 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:29:50,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:29:50,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:29:50,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:29:50,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:29:50,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:29:50,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:29:50,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:29:50,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:29:50,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:29:50,784 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:29:50,784 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:29:50,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:29:50,785 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:29:50,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:29:50,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:29:50,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:29:50,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:29:50,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:29:50,787 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:29:50,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:29:50,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:29:50,788 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:29:50,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:29:50,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:29:50,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:29:50,789 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_2022191c-2224-49be-b1b5-e4cdb14145c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 467fcaafa9af0a00772f5009c99943c6cb7078cb0bca94a00a243b41a6183129 [2022-11-19 08:29:51,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:29:51,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:29:51,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:29:51,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:29:51,116 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:29:51,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/xcsp/AllInterval-009.c [2022-11-19 08:29:51,203 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/data/300a25080/fcf6c3dd3b1144adaba05b8d3dd52c34/FLAGe52d86434 [2022-11-19 08:29:51,769 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:29:51,770 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/sv-benchmarks/c/xcsp/AllInterval-009.c [2022-11-19 08:29:51,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/data/300a25080/fcf6c3dd3b1144adaba05b8d3dd52c34/FLAGe52d86434 [2022-11-19 08:29:52,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/data/300a25080/fcf6c3dd3b1144adaba05b8d3dd52c34 [2022-11-19 08:29:52,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:29:52,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:29:52,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:29:52,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:29:52,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:29:52,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608b3c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52, skipping insertion in model container [2022-11-19 08:29:52,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:29:52,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:29:52,449 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/sv-benchmarks/c/xcsp/AllInterval-009.c[5030,5043] [2022-11-19 08:29:52,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:29:52,460 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:29:52,501 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/sv-benchmarks/c/xcsp/AllInterval-009.c[5030,5043] [2022-11-19 08:29:52,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:29:52,529 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:29:52,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52 WrapperNode [2022-11-19 08:29:52,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:29:52,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:29:52,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:29:52,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:29:52,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,579 INFO L138 Inliner]: procedures = 13, calls = 113, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 272 [2022-11-19 08:29:52,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:29:52,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:29:52,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:29:52,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:29:52,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,606 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:29:52,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:29:52,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:29:52,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:29:52,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (1/1) ... [2022-11-19 08:29:52,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:29:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:29:52,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:29:52,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:29:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:29:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:29:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:29:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:29:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2022-11-19 08:29:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2022-11-19 08:29:52,818 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:29:52,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:29:53,359 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:29:53,401 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:29:53,401 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:29:53,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:29:53 BoogieIcfgContainer [2022-11-19 08:29:53,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:29:53,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:29:53,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:29:53,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:29:53,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:29:52" (1/3) ... [2022-11-19 08:29:53,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39395e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:29:53, skipping insertion in model container [2022-11-19 08:29:53,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:52" (2/3) ... [2022-11-19 08:29:53,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39395e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:29:53, skipping insertion in model container [2022-11-19 08:29:53,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:29:53" (3/3) ... [2022-11-19 08:29:53,415 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-009.c [2022-11-19 08:29:53,435 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:29:53,435 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-19 08:29:53,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:29:53,525 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;@7f3fbed8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:29:53,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-11-19 08:29:53,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 101 states have internal predecessors, (109), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2022-11-19 08:29:53,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-19 08:29:53,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:29:53,561 INFO L195 NwaCegarLoop]: trace histogram [98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:29:53,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-19 08:29:53,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:29:53,568 INFO L85 PathProgramCache]: Analyzing trace with hash -954106397, now seen corresponding path program 1 times [2022-11-19 08:29:53,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:29:53,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294672389] [2022-11-19 08:29:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:53,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:29:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 2 proven. 95 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-19 08:29:55,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:29:55,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294672389] [2022-11-19 08:29:55,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294672389] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:29:55,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845923457] [2022-11-19 08:29:55,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:55,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:29:55,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:29:55,210 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:29:55,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:29:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:55,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:29:55,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:29:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 2 proven. 95 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-19 08:29:56,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:29:57,049 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 2 proven. 95 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-19 08:29:57,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845923457] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:29:57,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1583559287] [2022-11-19 08:29:57,084 INFO L159 IcfgInterpreter]: Started Sifa with 121 locations of interest [2022-11-19 08:29:57,084 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:29:57,089 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:29:57,096 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:29:57,096 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:30:37,537 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 08:30:37,554 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:33:21,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1583559287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:21,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:33:21,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [118] imperfect sequences [5, 4, 4] total 125 [2022-11-19 08:33:21,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409155790] [2022-11-19 08:33:21,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:21,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-11-19 08:33:21,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-11-19 08:33:21,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7611, Invalid=8139, Unknown=0, NotChecked=0, Total=15750 [2022-11-19 08:33:21,390 INFO L87 Difference]: Start difference. First operand has 209 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 101 states have internal predecessors, (109), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-19 08:33:27,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:27,103 INFO L93 Difference]: Finished difference Result 209 states and 321 transitions. [2022-11-19 08:33:27,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-19 08:33:27,106 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Word has length 314 [2022-11-19 08:33:27,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:27,115 INFO L225 Difference]: With dead ends: 209 [2022-11-19 08:33:27,115 INFO L226 Difference]: Without dead ends: 189 [2022-11-19 08:33:27,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 945 GetRequests, 819 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 163.7s TimeCoverageRelationStatistics Valid=7611, Invalid=8139, Unknown=0, NotChecked=0, Total=15750 [2022-11-19 08:33:27,124 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 419 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:27,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 254 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 08:33:27,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-19 08:33:27,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2022-11-19 08:33:27,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 67 states have (on average 1.328358208955224) internal successors, (89), 82 states have internal predecessors, (89), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-19 08:33:27,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 299 transitions. [2022-11-19 08:33:27,372 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 299 transitions. Word has length 314 [2022-11-19 08:33:27,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:27,375 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 299 transitions. [2022-11-19 08:33:27,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-19 08:33:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 299 transitions. [2022-11-19 08:33:27,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-19 08:33:27,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:27,384 INFO L195 NwaCegarLoop]: trace histogram [98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:27,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:33:27,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:27,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-19 08:33:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:27,592 INFO L85 PathProgramCache]: Analyzing trace with hash 310042999, now seen corresponding path program 1 times [2022-11-19 08:33:27,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:27,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412646392] [2022-11-19 08:33:27,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:27,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-19 08:33:28,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:28,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412646392] [2022-11-19 08:33:28,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412646392] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:33:28,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918228497] [2022-11-19 08:33:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:28,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:33:28,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:33:28,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:33:28,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:33:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:28,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:33:28,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:33:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-19 08:33:28,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:33:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 9409 trivial. 0 not checked. [2022-11-19 08:33:29,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918228497] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:33:29,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1730287912] [2022-11-19 08:33:29,363 INFO L159 IcfgInterpreter]: Started Sifa with 124 locations of interest [2022-11-19 08:33:29,364 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:33:29,364 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:33:29,365 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:33:29,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:34:04,195 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 56 for LOIs [2022-11-19 08:34:04,208 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:36:59,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1730287912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:59,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:36:59,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [120] imperfect sequences [5, 5, 5] total 126 [2022-11-19 08:36:59,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838936115] [2022-11-19 08:36:59,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:59,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-11-19 08:36:59,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:59,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-11-19 08:36:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7625, Invalid=8377, Unknown=0, NotChecked=0, Total=16002 [2022-11-19 08:36:59,030 INFO L87 Difference]: Start difference. First operand 189 states and 299 transitions. Second operand has 122 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-19 08:37:05,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:05,218 INFO L93 Difference]: Finished difference Result 190 states and 300 transitions. [2022-11-19 08:37:05,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-11-19 08:37:05,220 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Word has length 317 [2022-11-19 08:37:05,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:05,223 INFO L225 Difference]: With dead ends: 190 [2022-11-19 08:37:05,223 INFO L226 Difference]: Without dead ends: 188 [2022-11-19 08:37:05,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 825 SyntacticMatches, 4 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 174.7s TimeCoverageRelationStatistics Valid=7625, Invalid=8377, Unknown=0, NotChecked=0, Total=16002 [2022-11-19 08:37:05,229 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 403 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:05,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 237 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 08:37:05,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-19 08:37:05,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187. [2022-11-19 08:37:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 80 states have internal predecessors, (87), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2022-11-19 08:37:05,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 297 transitions. [2022-11-19 08:37:05,394 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 297 transitions. Word has length 317 [2022-11-19 08:37:05,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:05,396 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 297 transitions. [2022-11-19 08:37:05,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-11-19 08:37:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 297 transitions. [2022-11-19 08:37:05,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-19 08:37:05,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:05,404 INFO L195 NwaCegarLoop]: trace histogram [99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:05,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-19 08:37:05,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:37:05,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-19 08:37:05,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:05,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1812905304, now seen corresponding path program 1 times [2022-11-19 08:37:05,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:05,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022326491] [2022-11-19 08:37:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:05,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 116 proven. 264 refuted. 0 times theorem prover too weak. 9322 trivial. 0 not checked. [2022-11-19 08:37:06,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:06,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022326491] [2022-11-19 08:37:06,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022326491] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:37:06,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968130925] [2022-11-19 08:37:06,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:06,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:37:06,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:37:06,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:37:06,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:37:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:07,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:37:07,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:37:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-19 08:37:07,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:37:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-19 08:37:08,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968130925] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:37:08,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [413351654] [2022-11-19 08:37:08,310 INFO L159 IcfgInterpreter]: Started Sifa with 129 locations of interest [2022-11-19 08:37:08,310 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:37:08,311 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:37:08,311 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:37:08,312 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:37:43,736 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 08:37:43,737 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:40:55,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [413351654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:40:55,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:40:55,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [124] imperfect sequences [9, 5, 5] total 137 [2022-11-19 08:40:55,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25008147] [2022-11-19 08:40:55,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:40:55,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-11-19 08:40:55,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:40:55,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-11-19 08:40:55,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8582, Invalid=10324, Unknown=0, NotChecked=0, Total=18906 [2022-11-19 08:40:55,419 INFO L87 Difference]: Start difference. First operand 187 states and 297 transitions. Second operand has 126 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-11-19 08:41:03,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:41:03,566 INFO L93 Difference]: Finished difference Result 198 states and 310 transitions. [2022-11-19 08:41:03,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-11-19 08:41:03,567 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) Word has length 324 [2022-11-19 08:41:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:41:03,570 INFO L225 Difference]: With dead ends: 198 [2022-11-19 08:41:03,570 INFO L226 Difference]: Without dead ends: 196 [2022-11-19 08:41:03,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 983 GetRequests, 843 SyntacticMatches, 4 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 191.7s TimeCoverageRelationStatistics Valid=8582, Invalid=10324, Unknown=0, NotChecked=0, Total=18906 [2022-11-19 08:41:03,574 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 379 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:41:03,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 237 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 08:41:03,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-19 08:41:03,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2022-11-19 08:41:03,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 86 states have internal predecessors, (94), 106 states have call successors, (106), 1 states have call predecessors, (106), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2022-11-19 08:41:03,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 306 transitions. [2022-11-19 08:41:03,704 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 306 transitions. Word has length 324 [2022-11-19 08:41:03,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:41:03,705 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 306 transitions. [2022-11-19 08:41:03,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 25 states have (on average 1.12) internal successors, (28), 27 states have internal predecessors, (28), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-11-19 08:41:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 306 transitions. [2022-11-19 08:41:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-19 08:41:03,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:41:03,714 INFO L195 NwaCegarLoop]: trace histogram [99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:41:03,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:41:03,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:41:03,920 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2022-11-19 08:41:03,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:41:03,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1198539580, now seen corresponding path program 1 times [2022-11-19 08:41:03,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:41:03,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292933302] [2022-11-19 08:41:03,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:41:03,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:41:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:41:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-19 08:41:04,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:41:04,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292933302] [2022-11-19 08:41:04,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292933302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:41:04,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19489657] [2022-11-19 08:41:04,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:41:04,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:41:04,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:41:04,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:41:04,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2022191c-2224-49be-b1b5-e4cdb14145c2/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:41:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:41:04,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:41:04,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:41:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-19 08:41:05,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:41:05,696 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 2 proven. 96 refuted. 0 times theorem prover too weak. 9604 trivial. 0 not checked. [2022-11-19 08:41:05,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19489657] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:41:05,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [796360777] [2022-11-19 08:41:05,700 INFO L159 IcfgInterpreter]: Started Sifa with 131 locations of interest [2022-11-19 08:41:05,700 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:41:05,701 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:41:05,701 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:41:05,701 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:41:39,299 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 8 for LOIs [2022-11-19 08:41:39,300 INFO L180 IcfgInterpreter]: Interpretation finished