./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/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_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/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_e00ea08d-2e27-4604-88f1-fd41ad22c289/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 c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 --- 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 06:55:33,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:55:33,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:55:33,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:55:33,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:55:33,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:55:33,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:55:33,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:55:33,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:55:33,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:55:33,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:55:33,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:55:33,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:55:33,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:55:33,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:55:33,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:55:33,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:55:33,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:55:33,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:55:33,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:55:33,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:55:33,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:55:33,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:55:33,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:55:33,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:55:33,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:55:33,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:55:33,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:55:33,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:55:33,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:55:33,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:55:33,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:55:33,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:55:33,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:55:33,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:55:33,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:55:33,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:55:33,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:55:33,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:55:33,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:55:33,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:55:33,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 06:55:33,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:55:33,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:55:33,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:55:33,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:55:33,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:55:33,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:55:33,586 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:55:33,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:55:33,587 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:55:33,587 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:55:33,589 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:55:33,589 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:55:33,589 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:55:33,590 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:55:33,590 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:55:33,590 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:55:33,591 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:55:33,591 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:55:33,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:55:33,592 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:55:33,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:55:33,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:55:33,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:55:33,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:55:33,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:55:33,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:55:33,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:55:33,595 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 06:55:33,595 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:55:33,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:55:33,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:55:33,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:55:33,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:55:33,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:55:33,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:55:33,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:55:33,598 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:55:33,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:55:33,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:55:33,599 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:55:33,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:55:33,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:55:33,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:55:33,600 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_e00ea08d-2e27-4604-88f1-fd41ad22c289/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2022-11-19 06:55:34,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:55:34,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:55:34,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:55:34,051 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:55:34,052 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:55:34,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-19 06:55:34,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/data/72c66f0fd/c2d0e422896a444590f678bedaf1f683/FLAG342c6cb3e [2022-11-19 06:55:34,775 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:55:34,776 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-19 06:55:34,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/data/72c66f0fd/c2d0e422896a444590f678bedaf1f683/FLAG342c6cb3e [2022-11-19 06:55:35,002 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/data/72c66f0fd/c2d0e422896a444590f678bedaf1f683 [2022-11-19 06:55:35,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:55:35,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:55:35,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:55:35,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:55:35,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:55:35,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e598949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35, skipping insertion in model container [2022-11-19 06:55:35,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:55:35,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:55:35,558 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_e00ea08d-2e27-4604-88f1-fd41ad22c289/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-19 06:55:35,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:55:35,567 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:55:35,610 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_e00ea08d-2e27-4604-88f1-fd41ad22c289/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-19 06:55:35,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:55:35,643 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:55:35,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35 WrapperNode [2022-11-19 06:55:35,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:55:35,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:55:35,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:55:35,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:55:35,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,735 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 125 [2022-11-19 06:55:35,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:55:35,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:55:35,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:55:35,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:55:35,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:55:35,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:55:35,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:55:35,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:55:35,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (1/1) ... [2022-11-19 06:55:35,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:55:35,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:35,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:55:35,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:55:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-19 06:55:35,870 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-19 06:55:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:55:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:55:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:55:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:55:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:55:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:55:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:55:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:55:35,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:55:35,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:55:36,008 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:55:36,025 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:55:36,077 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-19 06:55:36,461 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:55:36,530 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:55:36,530 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-19 06:55:36,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:55:36 BoogieIcfgContainer [2022-11-19 06:55:36,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:55:36,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:55:36,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:55:36,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:55:36,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:55:35" (1/3) ... [2022-11-19 06:55:36,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d67fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:55:36, skipping insertion in model container [2022-11-19 06:55:36,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:55:35" (2/3) ... [2022-11-19 06:55:36,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d67fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:55:36, skipping insertion in model container [2022-11-19 06:55:36,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:55:36" (3/3) ... [2022-11-19 06:55:36,545 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2022-11-19 06:55:36,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:55:36,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-19 06:55:36,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:55:36,650 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;@672fedb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:55:36,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-19 06:55:36,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 41 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:36,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:55:36,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:36,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:55:36,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:36,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash 5638795, now seen corresponding path program 1 times [2022-11-19 06:55:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:36,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234280067] [2022-11-19 06:55:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:36,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:37,013 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 06:55:37,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:37,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234280067] [2022-11-19 06:55:37,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234280067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:37,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:37,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:55:37,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306862217] [2022-11-19 06:55:37,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:37,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:55:37,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:37,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:55:37,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:55:37,093 INFO L87 Difference]: Start difference. First operand has 43 states, 27 states have (on average 1.8148148148148149) internal successors, (49), 41 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:37,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:37,184 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2022-11-19 06:55:37,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:55:37,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 06:55:37,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:37,198 INFO L225 Difference]: With dead ends: 83 [2022-11-19 06:55:37,198 INFO L226 Difference]: Without dead ends: 44 [2022-11-19 06:55:37,203 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 06:55:37,207 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 7 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:37,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 75 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-19 06:55:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2022-11-19 06:55:37,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.75) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:37,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-19 06:55:37,247 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 4 [2022-11-19 06:55:37,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:37,247 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-19 06:55:37,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:37,248 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-19 06:55:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 06:55:37,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:37,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 06:55:37,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:55:37,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 170430933, now seen corresponding path program 1 times [2022-11-19 06:55:37,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:37,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791617118] [2022-11-19 06:55:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:37,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:37,423 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 06:55:37,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:37,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791617118] [2022-11-19 06:55:37,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791617118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:37,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:37,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:55:37,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574420260] [2022-11-19 06:55:37,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:37,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:55:37,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:37,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:55:37,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:55:37,428 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 06:55:37,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:37,512 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-11-19 06:55:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:55:37,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 06:55:37,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:37,514 INFO L225 Difference]: With dead ends: 44 [2022-11-19 06:55:37,514 INFO L226 Difference]: Without dead ends: 43 [2022-11-19 06:55:37,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:55:37,516 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:37,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 91 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:37,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-19 06:55:37,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2022-11-19 06:55:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 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 06:55:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-19 06:55:37,526 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 5 [2022-11-19 06:55:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:37,540 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-19 06:55:37,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 06:55:37,541 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-19 06:55:37,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 06:55:37,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:37,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 06:55:37,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:55:37,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:37,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:37,543 INFO L85 PathProgramCache]: Analyzing trace with hash 988391692, now seen corresponding path program 1 times [2022-11-19 06:55:37,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:37,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804709433] [2022-11-19 06:55:37,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:37,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:37,821 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 06:55:37,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:37,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804709433] [2022-11-19 06:55:37,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804709433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:37,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:37,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:55:37,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85387291] [2022-11-19 06:55:37,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:37,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:55:37,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:55:37,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:55:37,826 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 06:55:37,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:37,934 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-11-19 06:55:37,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:55:37,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 06:55:37,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:37,936 INFO L225 Difference]: With dead ends: 43 [2022-11-19 06:55:37,938 INFO L226 Difference]: Without dead ends: 42 [2022-11-19 06:55:37,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:55:37,941 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:37,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 92 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:37,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-19 06:55:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-19 06:55:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:37,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-19 06:55:37,957 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 6 [2022-11-19 06:55:37,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:37,958 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-19 06:55:37,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 06:55:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-19 06:55:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 06:55:37,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:37,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:37,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:55:37,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:37,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:37,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1118697962, now seen corresponding path program 1 times [2022-11-19 06:55:37,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:37,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249889484] [2022-11-19 06:55:37,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:37,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:38,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:38,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249889484] [2022-11-19 06:55:38,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249889484] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:38,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504417019] [2022-11-19 06:55:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:38,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:38,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:38,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:38,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:55:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:38,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:55:38,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:38,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:38,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:38,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504417019] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:38,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1704525693] [2022-11-19 06:55:38,494 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-19 06:55:38,494 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:38,499 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:38,505 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:38,510 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:38,697 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:55:38,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 06:55:38,767 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:38,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:55:38,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:38,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:38,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:55:38,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:38,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:38,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:55:38,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:38,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:38,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:55:38,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:38,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:38,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:55:39,158 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-19 06:55:39,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-19 06:55:39,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 06:55:39,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2022-11-19 06:55:39,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 58 [2022-11-19 06:55:39,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2022-11-19 06:55:39,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:39,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 56 [2022-11-19 06:55:39,928 INFO L321 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2022-11-19 06:55:39,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 427 treesize of output 432 [2022-11-19 06:55:40,052 INFO L321 Elim1Store]: treesize reduction 196, result has 10.5 percent of original size [2022-11-19 06:55:40,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 432 treesize of output 432 [2022-11-19 06:55:40,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2022-11-19 06:55:40,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2022-11-19 06:55:40,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 46 [2022-11-19 06:55:40,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 56 [2022-11-19 06:55:40,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:55:40,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:55:40,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:40,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:41,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:41,038 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:55:41,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-11-19 06:55:41,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:41,138 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:55:41,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-19 06:55:41,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:55:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:55:41,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:55:41,344 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:55:41,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:55:41,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:55:41,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 110 [2022-11-19 06:55:41,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:41,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 84 [2022-11-19 06:55:41,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 06:55:41,535 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:43,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1704525693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:43,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:43,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 4, 4] total 12 [2022-11-19 06:55:43,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152219048] [2022-11-19 06:55:43,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:43,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 06:55:43,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:43,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 06:55:43,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=112, Unknown=1, NotChecked=0, Total=156 [2022-11-19 06:55:43,464 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 06:55:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:43,710 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2022-11-19 06:55:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:55:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2022-11-19 06:55:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:43,711 INFO L225 Difference]: With dead ends: 71 [2022-11-19 06:55:43,711 INFO L226 Difference]: Without dead ends: 53 [2022-11-19 06:55:43,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=43, Invalid=112, Unknown=1, NotChecked=0, Total=156 [2022-11-19 06:55:43,713 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 58 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:43,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 68 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 4 Unchecked, 0.2s Time] [2022-11-19 06:55:43,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-19 06:55:43,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2022-11-19 06:55:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 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 06:55:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-11-19 06:55:43,733 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 9 [2022-11-19 06:55:43,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:43,735 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-11-19 06:55:43,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 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 06:55:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-11-19 06:55:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 06:55:43,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:43,736 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-19 06:55:43,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:43,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:43,943 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash -324270166, now seen corresponding path program 1 times [2022-11-19 06:55:43,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994983990] [2022-11-19 06:55:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:43,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:44,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:44,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994983990] [2022-11-19 06:55:44,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994983990] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:44,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867856442] [2022-11-19 06:55:44,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:44,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:44,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:44,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:44,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:55:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:44,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:55:44,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:55:44,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:55:44,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867856442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:44,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:55:44,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-19 06:55:44,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177025696] [2022-11-19 06:55:44,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:44,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:55:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:55:44,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:55:44,438 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:44,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:44,543 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2022-11-19 06:55:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:55:44,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 06:55:44,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:44,547 INFO L225 Difference]: With dead ends: 44 [2022-11-19 06:55:44,547 INFO L226 Difference]: Without dead ends: 43 [2022-11-19 06:55:44,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:55:44,549 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 71 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:44,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 61 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:44,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-19 06:55:44,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2022-11-19 06:55:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:44,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-19 06:55:44,566 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 10 [2022-11-19 06:55:44,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:44,569 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-19 06:55:44,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-19 06:55:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 06:55:44,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:44,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:44,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:44,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:44,778 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:44,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:44,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1815317118, now seen corresponding path program 1 times [2022-11-19 06:55:44,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:44,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896829940] [2022-11-19 06:55:44,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:44,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 06:55:44,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:44,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896829940] [2022-11-19 06:55:44,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896829940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:44,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:44,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:55:44,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907371463] [2022-11-19 06:55:44,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:44,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:55:44,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:55:44,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:55:44,876 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 06:55:44,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:44,992 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-11-19 06:55:44,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:55:44,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 06:55:44,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:44,994 INFO L225 Difference]: With dead ends: 63 [2022-11-19 06:55:44,994 INFO L226 Difference]: Without dead ends: 61 [2022-11-19 06:55:44,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:55:44,995 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 23 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:44,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 62 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:44,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-19 06:55:45,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 44. [2022-11-19 06:55:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.59375) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 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 06:55:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2022-11-19 06:55:45,005 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 12 [2022-11-19 06:55:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:45,005 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2022-11-19 06:55:45,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 06:55:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2022-11-19 06:55:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 06:55:45,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:45,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:45,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:55:45,007 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:45,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:45,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1815313727, now seen corresponding path program 1 times [2022-11-19 06:55:45,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:45,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886701042] [2022-11-19 06:55:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:45,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 06:55:45,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:45,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886701042] [2022-11-19 06:55:45,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886701042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:45,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:45,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:55:45,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299038519] [2022-11-19 06:55:45,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:45,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:55:45,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:45,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:55:45,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:55:45,072 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 06:55:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:45,180 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2022-11-19 06:55:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:55:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 06:55:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:45,182 INFO L225 Difference]: With dead ends: 126 [2022-11-19 06:55:45,182 INFO L226 Difference]: Without dead ends: 92 [2022-11-19 06:55:45,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:55:45,183 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 73 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:45,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 69 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-19 06:55:45,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 42. [2022-11-19 06:55:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-19 06:55:45,193 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 12 [2022-11-19 06:55:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:45,194 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-19 06:55:45,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 06:55:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-19 06:55:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 06:55:45,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:45,195 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:45,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:55:45,195 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:45,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:45,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2115822576, now seen corresponding path program 1 times [2022-11-19 06:55:45,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:45,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670837369] [2022-11-19 06:55:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:45,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:55:45,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:45,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670837369] [2022-11-19 06:55:45,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670837369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:45,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123050207] [2022-11-19 06:55:45,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:45,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:45,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:45,296 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:45,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:55:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:45,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:55:45,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:55:45,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:45,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:55:45,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123050207] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:45,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2000163742] [2022-11-19 06:55:45,492 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-19 06:55:45,492 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:45,492 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:45,493 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:45,493 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:45,544 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:55:45,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 06:55:45,596 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:45,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:55:45,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:45,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:45,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:55:45,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:45,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:45,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:55:45,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:45,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:45,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:55:45,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:45,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:45,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:55:45,891 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 06:55:45,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 06:55:45,932 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 06:55:45,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 06:55:46,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,491 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 06:55:46,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 311 treesize of output 289 [2022-11-19 06:55:46,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,601 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 06:55:46,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 315 treesize of output 292 [2022-11-19 06:55:46,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 304 treesize of output 295 [2022-11-19 06:55:46,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:46,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:46,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:46,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:46,758 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 06:55:46,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 451 treesize of output 474 [2022-11-19 06:55:46,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 313 [2022-11-19 06:55:46,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:46,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:46,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:46,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:46,924 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-19 06:55:46,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 444 treesize of output 468 [2022-11-19 06:55:47,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:47,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:47,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 418 [2022-11-19 06:55:47,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:55:47,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:47,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 398 treesize of output 384 [2022-11-19 06:55:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:47,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:47,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:47,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:47,427 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 06:55:47,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 434 treesize of output 381 [2022-11-19 06:55:47,571 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-19 06:55:47,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 531 treesize of output 462 [2022-11-19 06:55:47,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 447 treesize of output 407 [2022-11-19 06:55:47,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 377 treesize of output 371 [2022-11-19 06:55:48,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:55:48,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:55:48,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:48,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:48,165 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:55:48,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-11-19 06:55:48,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:48,245 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:55:48,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-11-19 06:55:48,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:55:48,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:55:48,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 43 [2022-11-19 06:55:48,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:55:48,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:55:48,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:55:48,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 53 [2022-11-19 06:55:48,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:55:48,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:48,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-19 06:55:48,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:48,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:55:48,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:49,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:55:49,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:49,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:49,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:55:49,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:49,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:49,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:55:49,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:55:49,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:49,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:49,371 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:55:49,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 06:55:49,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:49,437 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:55:49,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-19 06:55:49,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:55:49,518 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:55:49,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:55:49,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:55:49,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:55:49,591 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:55:49,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:55:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:49,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:55:49,772 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:49,937 WARN L859 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) (let ((.cse16 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (.cse24 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse25 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse11 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))) (let ((.cse3 (= (select .cse25 .cse11) 0)) (.cse4 (= (select (select |c_#memory_int| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) |c_ULTIMATE.start_dll_create_~data#1|)) (.cse5 (= (select .cse24 .cse11) 0)) (.cse2 (select .cse24 .cse16)) (.cse0 (select .cse25 .cse16))) (or (let ((.cse1 (+ .cse2 8))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (select |c_#memory_$Pointer$.base| .cse0) .cse1)) (<= 0 .cse2) (or .cse3 (= .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (or (not (= .cse2 0)) (not (= .cse0 0))) (<= .cse2 0) .cse4 (= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) .cse5)) (and .cse3 .cse4 .cse5 (let ((.cse9 (select .cse25 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse13 (select .cse24 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))) (or (exists ((v_DerPreprocessor_35 Int) (v_DerPreprocessor_37 (Array Int Int)) (v_DerPreprocessor_33 (Array Int Int)) (v_DerPreprocessor_34 (Array Int Int)) (v_DerPreprocessor_36 (Array Int Int))) (let ((.cse15 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_DerPreprocessor_36) v_DerPreprocessor_35 v_DerPreprocessor_37))) (let ((.cse7 (select .cse15 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (let ((.cse8 (select .cse7 .cse16))) (let ((.cse6 (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_DerPreprocessor_33) .cse8 v_DerPreprocessor_34) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (let ((.cse10 (select .cse6 .cse16))) (let ((.cse14 (select .cse15 .cse8)) (.cse12 (+ .cse10 8))) (and (= v_DerPreprocessor_33 .cse6) (= v_DerPreprocessor_36 .cse7) (= .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (= .cse9 (select .cse7 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse10 .cse2) (= (select .cse6 .cse11) 0) (= .cse8 v_DerPreprocessor_35) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (select v_DerPreprocessor_34 .cse12)) (= .cse13 (select .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse8 0) (= v_DerPreprocessor_37 .cse14) (= .cse10 0) (= .cse8 .cse0) (= (select .cse14 .cse12) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))))))))) (exists ((v_DerPreprocessor_35 Int) (v_DerPreprocessor_37 (Array Int Int)) (v_DerPreprocessor_33 (Array Int Int)) (v_DerPreprocessor_34 (Array Int Int)) (v_DerPreprocessor_36 (Array Int Int))) (let ((.cse23 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_DerPreprocessor_36) v_DerPreprocessor_35 v_DerPreprocessor_37))) (let ((.cse18 (select .cse23 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (let ((.cse20 (select .cse18 .cse16))) (let ((.cse17 (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_DerPreprocessor_33) .cse20 v_DerPreprocessor_34) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (let ((.cse19 (select .cse17 .cse16))) (let ((.cse22 (select .cse23 .cse20)) (.cse21 (+ .cse19 8))) (and (= v_DerPreprocessor_33 .cse17) (= v_DerPreprocessor_36 .cse18) (= .cse9 (select .cse18 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse19 .cse2) (= (select .cse17 .cse11) 0) (= .cse20 v_DerPreprocessor_35) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (select v_DerPreprocessor_34 .cse21)) (= .cse13 (select .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse20 0) (= v_DerPreprocessor_37 .cse22) (= (select .cse18 .cse11) 0) (= .cse19 0) (= .cse20 .cse0) (= (select .cse22 .cse21) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))))))))))))))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= 1 |c_ULTIMATE.start_dll_create_~data#1|) (= |c_#NULL.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (<= |c_ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |c_ULTIMATE.start_dll_create_#in~len#1|) (<= |c_ULTIMATE.start_dll_create_#in~len#1| 2) (= (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 12) (= |c_#NULL.base| 0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (<= |c_ULTIMATE.start_dll_create_~len#1| 2) (= |c_ULTIMATE.start_dll_create_~len#1| |c_ULTIMATE.start_dll_create_#t~post5#1|) (<= 0 |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_#StackHeapBarrier|) (< 0 |c_ULTIMATE.start_dll_create_~len#1|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0)) (<= |c_ULTIMATE.start_dll_create_~data#1| 1) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) (= |c_ULTIMATE.start_main_~len~0#1| 2) (<= 1 |c_ULTIMATE.start_dll_create_#in~data#1|)) is different from true [2022-11-19 06:55:50,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2000163742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:50,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:50,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 14 [2022-11-19 06:55:50,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969233988] [2022-11-19 06:55:50,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:50,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 06:55:50,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 06:55:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=140, Unknown=1, NotChecked=24, Total=210 [2022-11-19 06:55:50,988 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:52,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:52,051 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-11-19 06:55:52,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 06:55:52,052 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 06:55:52,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:52,052 INFO L225 Difference]: With dead ends: 76 [2022-11-19 06:55:52,052 INFO L226 Difference]: Without dead ends: 70 [2022-11-19 06:55:52,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=73, Invalid=234, Unknown=3, NotChecked=32, Total=342 [2022-11-19 06:55:52,053 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 141 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:52,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 82 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 102 Invalid, 0 Unknown, 71 Unchecked, 0.2s Time] [2022-11-19 06:55:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-19 06:55:52,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 49. [2022-11-19 06:55:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 48 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2022-11-19 06:55:52,066 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 15 [2022-11-19 06:55:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:52,066 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2022-11-19 06:55:52,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-11-19 06:55:52,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 06:55:52,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:52,067 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:52,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:52,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:52,274 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:52,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:52,274 INFO L85 PathProgramCache]: Analyzing trace with hash 469757189, now seen corresponding path program 1 times [2022-11-19 06:55:52,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:52,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8088350] [2022-11-19 06:55:52,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:52,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:55:52,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:52,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8088350] [2022-11-19 06:55:52,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8088350] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:52,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536907218] [2022-11-19 06:55:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:52,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:52,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:52,374 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:52,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:55:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:52,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:55:52,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:55:52,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:55:52,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536907218] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:52,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2058763238] [2022-11-19 06:55:52,565 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-19 06:55:52,566 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:52,566 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:52,566 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:52,566 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:52,613 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:55:52,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 06:55:52,654 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:52,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:55:52,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:52,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:52,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:55:52,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:52,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:52,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:55:52,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:52,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:52,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:55:52,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:52,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:52,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:55:52,890 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 06:55:52,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 06:55:52,930 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 06:55:52,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 06:55:53,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,355 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 06:55:53,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-11-19 06:55:53,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,432 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 06:55:53,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-11-19 06:55:53,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-11-19 06:55:53,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-11-19 06:55:53,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:53,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:53,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:53,660 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 06:55:53,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 401 [2022-11-19 06:55:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:53,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:53,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 473 [2022-11-19 06:55:53,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 407 treesize of output 349 [2022-11-19 06:55:53,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:55:53,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 315 [2022-11-19 06:55:53,868 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:55:53,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 66 [2022-11-19 06:55:53,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:53,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 15 [2022-11-19 06:55:53,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-19 06:55:53,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:53,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,006 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 06:55:54,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 365 treesize of output 320 [2022-11-19 06:55:54,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:55:54,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:55:54,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:54,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:54,693 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:55:54,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 06:55:54,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:54,774 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:55:54,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-11-19 06:55:54,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:55:54,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:55:54,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:55:54,889 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:55:54,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:55:54,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:54,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:55:54,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 65 [2022-11-19 06:55:54,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 3 [2022-11-19 06:55:55,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-19 06:55:55,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:55,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:55,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:55:55,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:55,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:55:55,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:55,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:55,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:55:55,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:55:55,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:55:55,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:55:55,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:55,674 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:55:55,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-19 06:55:55,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:55,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:55,739 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 06:55:55,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-19 06:55:55,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:55:55,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:55:55,844 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:55:55,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:55:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:55:55,987 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:55:55,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 143 treesize of output 122 [2022-11-19 06:55:55,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:55,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 78 [2022-11-19 06:55:56,098 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:58,077 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1448#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (exists ((|v_ULTIMATE.start_dll_update_at_~head#1.base_18| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_18| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_dll_update_at_~head#1.base_18|) (+ |v_ULTIMATE.start_dll_update_at_~head#1.offset_18| 4)) |ULTIMATE.start_dll_update_at_~head#1.base|) (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_18| 0) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_update_at_~head#1.base_18|) (+ |v_ULTIMATE.start_dll_update_at_~head#1.offset_18| 4)) |ULTIMATE.start_dll_update_at_~head#1.offset|) (<= 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_18|))) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_update_at_#t~post11#1| |ULTIMATE.start_dll_update_at_~index#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0) (not (<= |ULTIMATE.start_dll_update_at_#t~post11#1| 2147483648)))' at error location [2022-11-19 06:55:58,077 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:58,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:58,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-11-19 06:55:58,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263519730] [2022-11-19 06:55:58,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:58,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:55:58,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:58,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:55:58,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=214, Unknown=3, NotChecked=0, Total=272 [2022-11-19 06:55:58,080 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:58,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:58,167 INFO L93 Difference]: Finished difference Result 96 states and 108 transitions. [2022-11-19 06:55:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:55:58,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 06:55:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:58,170 INFO L225 Difference]: With dead ends: 96 [2022-11-19 06:55:58,170 INFO L226 Difference]: Without dead ends: 54 [2022-11-19 06:55:58,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=61, Invalid=242, Unknown=3, NotChecked=0, Total=306 [2022-11-19 06:55:58,176 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 10 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:58,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 116 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:58,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-19 06:55:58,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-19 06:55:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 53 states have internal predecessors, (60), 0 states have call successors, (0), 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 06:55:58,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2022-11-19 06:55:58,191 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 18 [2022-11-19 06:55:58,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:58,192 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2022-11-19 06:55:58,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:55:58,192 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-11-19 06:55:58,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 06:55:58,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:58,193 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:58,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:58,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:58,395 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:55:58,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:58,396 INFO L85 PathProgramCache]: Analyzing trace with hash -250914480, now seen corresponding path program 2 times [2022-11-19 06:55:58,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:58,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87868490] [2022-11-19 06:55:58,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:58,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:55:58,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:58,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87868490] [2022-11-19 06:55:58,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87868490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:58,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075369729] [2022-11-19 06:55:58,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:55:58,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:58,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:58,619 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:58,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 06:55:58,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 06:55:58,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:55:58,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:55:58,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:55:58,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:58,904 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:55:58,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075369729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:58,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [156286579] [2022-11-19 06:55:58,907 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-19 06:55:58,907 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:58,908 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:58,908 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:58,908 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:58,960 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:55:58,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 06:55:59,004 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:59,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:55:59,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:55:59,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:55:59,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:55:59,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:55:59,253 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 06:55:59,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 06:55:59,293 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 06:55:59,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 06:55:59,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:59,641 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 06:55:59,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 227 [2022-11-19 06:55:59,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:59,729 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 06:55:59,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 245 treesize of output 230 [2022-11-19 06:55:59,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 225 [2022-11-19 06:55:59,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:59,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:59,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:59,868 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-19 06:55:59,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 381 treesize of output 399 [2022-11-19 06:55:59,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:59,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 267 [2022-11-19 06:55:59,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:59,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:59,994 INFO L321 Elim1Store]: treesize reduction 90, result has 37.9 percent of original size [2022-11-19 06:55:59,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 398 treesize of output 427 [2022-11-19 06:56:00,275 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:00,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 326 treesize of output 257 [2022-11-19 06:56:00,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 190 [2022-11-19 06:56:00,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2022-11-19 06:56:00,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 642 treesize of output 597 [2022-11-19 06:56:00,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:00,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 577 treesize of output 557 [2022-11-19 06:56:00,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:00,481 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 06:56:00,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 589 treesize of output 544 [2022-11-19 06:56:00,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:00,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:00,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:00,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:00,921 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:56:00,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-11-19 06:56:00,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:00,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:01,012 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:01,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-19 06:56:01,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:56:01,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:56:01,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:01,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 06:56:01,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-19 06:56:01,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 06:56:01,298 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:56:01,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 144 [2022-11-19 06:56:01,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 92 [2022-11-19 06:56:01,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:01,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:01,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:01,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:01,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:01,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:01,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:01,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:01,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:01,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:01,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:01,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:01,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:01,906 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:56:01,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 06:56:01,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:01,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:01,978 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:01,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-19 06:56:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:02,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:56:02,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:02,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:56:02,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:02,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:02,104 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:02,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 06:56:02,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:02,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:02,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 06:56:02,188 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:56:02,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 143 treesize of output 122 [2022-11-19 06:56:02,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:02,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:02,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 78 [2022-11-19 06:56:02,262 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:56:04,250 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1791#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_update_at_#t~post11#1| |ULTIMATE.start_dll_update_at_~index#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (exists ((|v_ULTIMATE.start_dll_update_at_~head#1.base_24| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_24| Int)) (and (<= 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_24|) (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_24| 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_dll_update_at_~head#1.base_24|) (+ |v_ULTIMATE.start_dll_update_at_~head#1.offset_24| 4)) |ULTIMATE.start_dll_update_at_~head#1.base|) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_update_at_~head#1.base_24|) (+ |v_ULTIMATE.start_dll_update_at_~head#1.offset_24| 4)) |ULTIMATE.start_dll_update_at_~head#1.offset|))) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0) (not (<= |ULTIMATE.start_dll_update_at_#t~post11#1| 2147483648)))' at error location [2022-11-19 06:56:04,250 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:56:04,250 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:56:04,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 11 [2022-11-19 06:56:04,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202331378] [2022-11-19 06:56:04,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:56:04,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 06:56:04,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:04,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 06:56:04,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=408, Unknown=2, NotChecked=0, Total=506 [2022-11-19 06:56:04,252 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 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 06:56:04,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:04,480 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-11-19 06:56:04,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 06:56:04,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-19 06:56:04,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:04,482 INFO L225 Difference]: With dead ends: 71 [2022-11-19 06:56:04,482 INFO L226 Difference]: Without dead ends: 68 [2022-11-19 06:56:04,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=158, Invalid=652, Unknown=2, NotChecked=0, Total=812 [2022-11-19 06:56:04,484 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 182 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:04,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 66 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-19 06:56:04,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 51. [2022-11-19 06:56:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 50 states have internal predecessors, (57), 0 states have call successors, (0), 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 06:56:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-11-19 06:56:04,496 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 23 [2022-11-19 06:56:04,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:04,497 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-11-19 06:56:04,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 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 06:56:04,497 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-11-19 06:56:04,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:56:04,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:04,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:04,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 06:56:04,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-19 06:56:04,704 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:04,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:04,705 INFO L85 PathProgramCache]: Analyzing trace with hash 811585808, now seen corresponding path program 1 times [2022-11-19 06:56:04,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:04,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501585459] [2022-11-19 06:56:04,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:04,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:56:04,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:04,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501585459] [2022-11-19 06:56:04,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501585459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:04,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:04,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:56:04,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429433918] [2022-11-19 06:56:04,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:04,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:56:04,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:04,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:56:04,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:56:04,805 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:04,850 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-11-19 06:56:04,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:56:04,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 06:56:04,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:04,851 INFO L225 Difference]: With dead ends: 51 [2022-11-19 06:56:04,852 INFO L226 Difference]: Without dead ends: 50 [2022-11-19 06:56:04,852 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 06:56:04,853 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:04,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:56:04,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-19 06:56:04,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-19 06:56:04,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2022-11-19 06:56:04,869 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 24 [2022-11-19 06:56:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:04,871 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2022-11-19 06:56:04,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2022-11-19 06:56:04,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:56:04,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:04,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:04,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 06:56:04,873 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:04,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:04,874 INFO L85 PathProgramCache]: Analyzing trace with hash -325592861, now seen corresponding path program 1 times [2022-11-19 06:56:04,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:04,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342602147] [2022-11-19 06:56:04,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:04,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:56:04,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:04,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342602147] [2022-11-19 06:56:04,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342602147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:04,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:04,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:56:04,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748582198] [2022-11-19 06:56:04,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:04,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:56:04,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:04,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:56:04,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:56:04,999 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:05,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:05,078 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2022-11-19 06:56:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 06:56:05,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-19 06:56:05,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:05,080 INFO L225 Difference]: With dead ends: 80 [2022-11-19 06:56:05,080 INFO L226 Difference]: Without dead ends: 66 [2022-11-19 06:56:05,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:56:05,081 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 21 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:05,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 62 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:05,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-19 06:56:05,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-11-19 06:56:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.326086956521739) internal successors, (61), 53 states have internal predecessors, (61), 0 states have call successors, (0), 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 06:56:05,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2022-11-19 06:56:05,108 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 24 [2022-11-19 06:56:05,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:05,108 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2022-11-19 06:56:05,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:05,108 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2022-11-19 06:56:05,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 06:56:05,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:05,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:05,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 06:56:05,115 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:05,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:05,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1503387806, now seen corresponding path program 1 times [2022-11-19 06:56:05,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:05,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670002854] [2022-11-19 06:56:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:05,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:05,247 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:56:05,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:05,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670002854] [2022-11-19 06:56:05,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670002854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:05,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:05,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:56:05,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450820124] [2022-11-19 06:56:05,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:05,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:56:05,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:56:05,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:56:05,251 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 06:56:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:05,364 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2022-11-19 06:56:05,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:56:05,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 25 [2022-11-19 06:56:05,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:05,365 INFO L225 Difference]: With dead ends: 62 [2022-11-19 06:56:05,365 INFO L226 Difference]: Without dead ends: 60 [2022-11-19 06:56:05,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:56:05,367 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:05,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 56 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:05,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-19 06:56:05,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2022-11-19 06:56:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 56 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:05,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2022-11-19 06:56:05,383 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 25 [2022-11-19 06:56:05,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:05,383 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2022-11-19 06:56:05,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 06:56:05,383 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-11-19 06:56:05,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 06:56:05,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:05,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:05,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 06:56:05,390 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:05,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:05,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1750080047, now seen corresponding path program 1 times [2022-11-19 06:56:05,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:05,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882169894] [2022-11-19 06:56:05,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:05,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:56:05,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882169894] [2022-11-19 06:56:05,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882169894] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636966785] [2022-11-19 06:56:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:05,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:05,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:05,656 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:05,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 06:56:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:05,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:56:05,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:56:05,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:56:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:56:05,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636966785] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:56:05,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [534077594] [2022-11-19 06:56:05,963 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-19 06:56:05,963 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:56:05,964 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:56:05,964 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:56:05,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:56:06,016 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:56:06,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:56:06,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 06:56:06,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:06,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:06,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:56:06,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:56:06,243 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 06:56:06,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 06:56:06,285 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 06:56:06,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 06:56:06,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,681 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 06:56:06,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-11-19 06:56:06,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,754 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 06:56:06,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-11-19 06:56:06,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-11-19 06:56:06,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-11-19 06:56:06,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:06,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:06,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:06,933 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 06:56:06,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 396 [2022-11-19 06:56:06,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:06,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:06,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:06,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 438 treesize of output 473 [2022-11-19 06:56:07,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 336 [2022-11-19 06:56:07,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:07,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 312 [2022-11-19 06:56:07,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 91 [2022-11-19 06:56:07,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2022-11-19 06:56:07,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2022-11-19 06:56:07,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,331 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 06:56:07,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 352 treesize of output 307 [2022-11-19 06:56:07,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:07,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:07,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:07,923 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:07,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-19 06:56:07,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:07,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:07,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:07,985 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 06:56:07,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-19 06:56:08,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:56:08,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:08,129 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:08,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 06:56:08,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 06:56:08,181 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:08,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 145 [2022-11-19 06:56:08,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 91 [2022-11-19 06:56:08,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:56:08,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:08,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:08,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:08,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:08,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:08,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:08,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:08,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:08,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:08,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:08,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:08,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:08,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:08,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:09,006 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:56:09,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 06:56:09,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:09,089 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:09,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-19 06:56:09,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:56:09,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:56:09,174 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:09,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:56:09,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:56:09,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:09,273 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:09,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 06:56:09,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:09,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 06:56:09,416 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:56:11,696 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2591#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_dll_update_at_~head#1.base|) |ULTIMATE.start_dll_update_at_~head#1.offset|) |ULTIMATE.start_dll_update_at_~data#1|) (not (< 0 |ULTIMATE.start_dll_update_at_~index#1|)) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (not (<= |ULTIMATE.start_main_#t~post13#1| 2147483646)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_#t~post13#1|) (= |#NULL.base| 0))' at error location [2022-11-19 06:56:11,697 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:56:11,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:56:11,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-19 06:56:11,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805288181] [2022-11-19 06:56:11,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:56:11,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:56:11,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:11,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:56:11,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=501, Unknown=3, NotChecked=0, Total=600 [2022-11-19 06:56:11,699 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 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 06:56:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:11,986 INFO L93 Difference]: Finished difference Result 89 states and 102 transitions. [2022-11-19 06:56:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 06:56:11,987 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 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 26 [2022-11-19 06:56:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:11,987 INFO L225 Difference]: With dead ends: 89 [2022-11-19 06:56:11,987 INFO L226 Difference]: Without dead ends: 88 [2022-11-19 06:56:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=197, Invalid=922, Unknown=3, NotChecked=0, Total=1122 [2022-11-19 06:56:11,989 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 58 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:11,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 102 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:56:11,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-19 06:56:12,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 77. [2022-11-19 06:56:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 76 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:12,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 93 transitions. [2022-11-19 06:56:12,004 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 93 transitions. Word has length 26 [2022-11-19 06:56:12,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:12,004 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 93 transitions. [2022-11-19 06:56:12,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 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 06:56:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 93 transitions. [2022-11-19 06:56:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 06:56:12,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:12,005 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:12,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 06:56:12,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-19 06:56:12,212 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1582093499, now seen corresponding path program 1 times [2022-11-19 06:56:12,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:12,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270309711] [2022-11-19 06:56:12,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:12,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 06:56:12,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:12,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270309711] [2022-11-19 06:56:12,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270309711] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:12,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716682884] [2022-11-19 06:56:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:12,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:12,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:12,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:12,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 06:56:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:12,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:56:12,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:12,604 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:56:12,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:56:12,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716682884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:12,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:56:12,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2022-11-19 06:56:12,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268198810] [2022-11-19 06:56:12,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:12,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:56:12,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:12,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:56:12,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:56:12,606 INFO L87 Difference]: Start difference. First operand 77 states and 93 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:12,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:12,731 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2022-11-19 06:56:12,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:56:12,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 06:56:12,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:12,733 INFO L225 Difference]: With dead ends: 80 [2022-11-19 06:56:12,733 INFO L226 Difference]: Without dead ends: 79 [2022-11-19 06:56:12,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:56:12,736 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:12,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 75 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:12,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-19 06:56:12,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2022-11-19 06:56:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 75 states have internal predecessors, (90), 0 states have call successors, (0), 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 06:56:12,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2022-11-19 06:56:12,770 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 27 [2022-11-19 06:56:12,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:12,771 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2022-11-19 06:56:12,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:12,771 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2022-11-19 06:56:12,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-19 06:56:12,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:12,774 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:12,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 06:56:12,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:12,981 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:12,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1897303742, now seen corresponding path program 1 times [2022-11-19 06:56:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:12,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691636496] [2022-11-19 06:56:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:12,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:56:13,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:13,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691636496] [2022-11-19 06:56:13,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691636496] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:13,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312099821] [2022-11-19 06:56:13,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:13,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:13,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:13,171 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:13,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 06:56:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:13,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:56:13,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 06:56:13,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:56:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 06:56:13,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312099821] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:56:13,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [833903183] [2022-11-19 06:56:13,560 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-19 06:56:13,563 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:56:13,563 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:56:13,564 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:56:13,564 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:56:13,622 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:56:13,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 06:56:13,673 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:56:13,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:56:13,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:13,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:13,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:13,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:13,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:13,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:56:13,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:13,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:13,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:56:13,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:13,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:13,885 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 06:56:13,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 06:56:13,926 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 06:56:13,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 06:56:14,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,309 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 06:56:14,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-11-19 06:56:14,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,407 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 06:56:14,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-11-19 06:56:14,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-11-19 06:56:14,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:14,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:14,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:14,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:14,568 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 06:56:14,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 396 [2022-11-19 06:56:14,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 229 [2022-11-19 06:56:14,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:14,637 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:14,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:14,690 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-19 06:56:14,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 360 treesize of output 389 [2022-11-19 06:56:14,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,793 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 06:56:14,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 365 treesize of output 320 [2022-11-19 06:56:14,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 49 [2022-11-19 06:56:14,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:14,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:14,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-19 06:56:15,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 328 [2022-11-19 06:56:15,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 308 treesize of output 302 [2022-11-19 06:56:15,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:15,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:15,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:15,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:15,570 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:15,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-19 06:56:15,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:15,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:15,624 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 06:56:15,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-19 06:56:15,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:56:15,710 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:15,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:56:15,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:56:15,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:15,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 06:56:15,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-19 06:56:15,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 06:56:15,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:15,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:15,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:15,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:16,038 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:16,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-19 06:56:16,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:16,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:16,101 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 06:56:16,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-19 06:56:16,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:56:16,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:16,240 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:16,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 06:56:16,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 06:56:16,289 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:16,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 145 [2022-11-19 06:56:16,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:56:16,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:16,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 91 [2022-11-19 06:56:16,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:16,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:16,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:16,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:16,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:16,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:16,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:16,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:16,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:16,997 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:56:20,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [833903183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:20,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:56:20,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6, 5, 5] total 27 [2022-11-19 06:56:20,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061205782] [2022-11-19 06:56:20,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:20,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-19 06:56:20,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:20,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-19 06:56:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=549, Unknown=2, NotChecked=0, Total=702 [2022-11-19 06:56:20,167 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:21,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:21,121 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2022-11-19 06:56:21,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 06:56:21,121 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-19 06:56:21,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:21,123 INFO L225 Difference]: With dead ends: 100 [2022-11-19 06:56:21,124 INFO L226 Difference]: Without dead ends: 97 [2022-11-19 06:56:21,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 58 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=185, Invalid=683, Unknown=2, NotChecked=0, Total=870 [2022-11-19 06:56:21,131 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 65 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:21,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 111 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 187 Invalid, 0 Unknown, 77 Unchecked, 0.3s Time] [2022-11-19 06:56:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-19 06:56:21,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 84. [2022-11-19 06:56:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 77 states have (on average 1.2857142857142858) internal successors, (99), 83 states have internal predecessors, (99), 0 states have call successors, (0), 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 06:56:21,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2022-11-19 06:56:21,157 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 29 [2022-11-19 06:56:21,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:21,158 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2022-11-19 06:56:21,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:21,158 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2022-11-19 06:56:21,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 06:56:21,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:21,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:21,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 06:56:21,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-19 06:56:21,367 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:21,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:21,367 INFO L85 PathProgramCache]: Analyzing trace with hash -823599082, now seen corresponding path program 1 times [2022-11-19 06:56:21,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:21,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117456831] [2022-11-19 06:56:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:21,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 06:56:21,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:21,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117456831] [2022-11-19 06:56:21,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117456831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:21,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772499991] [2022-11-19 06:56:21,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:21,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:21,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:21,647 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:21,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 06:56:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:21,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:56:21,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:56:21,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:56:21,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772499991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:21,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:56:21,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2022-11-19 06:56:21,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759584059] [2022-11-19 06:56:21,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:21,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 06:56:21,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:21,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 06:56:21,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:56:21,999 INFO L87 Difference]: Start difference. First operand 84 states and 99 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 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 06:56:22,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:22,133 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2022-11-19 06:56:22,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 06:56:22,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 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 30 [2022-11-19 06:56:22,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:22,135 INFO L225 Difference]: With dead ends: 135 [2022-11-19 06:56:22,135 INFO L226 Difference]: Without dead ends: 67 [2022-11-19 06:56:22,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-19 06:56:22,136 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 48 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:22,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 64 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:22,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-19 06:56:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2022-11-19 06:56:22,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.206896551724138) internal successors, (70), 62 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:22,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-11-19 06:56:22,151 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 30 [2022-11-19 06:56:22,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:22,152 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-11-19 06:56:22,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 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 06:56:22,152 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-11-19 06:56:22,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 06:56:22,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:22,153 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:22,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-19 06:56:22,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-19 06:56:22,358 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:22,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:22,359 INFO L85 PathProgramCache]: Analyzing trace with hash 241518265, now seen corresponding path program 1 times [2022-11-19 06:56:22,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:22,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62523933] [2022-11-19 06:56:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:22,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:56:22,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:22,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62523933] [2022-11-19 06:56:22,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62523933] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:22,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476740074] [2022-11-19 06:56:22,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:22,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:22,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:22,505 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:22,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 06:56:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:22,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:56:22,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:22,809 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 06:56:22,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:56:22,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476740074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:22,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:56:22,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2022-11-19 06:56:22,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19862797] [2022-11-19 06:56:22,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:22,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:56:22,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:22,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:56:22,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:56:22,812 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 06:56:22,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:22,876 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-11-19 06:56:22,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:56:22,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 31 [2022-11-19 06:56:22,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:22,877 INFO L225 Difference]: With dead ends: 67 [2022-11-19 06:56:22,877 INFO L226 Difference]: Without dead ends: 66 [2022-11-19 06:56:22,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:56:22,878 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 32 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:22,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 34 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:56:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-19 06:56:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2022-11-19 06:56:22,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 62 states have internal predecessors, (69), 0 states have call successors, (0), 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 06:56:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2022-11-19 06:56:22,894 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 31 [2022-11-19 06:56:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:22,895 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2022-11-19 06:56:22,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 06:56:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2022-11-19 06:56:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 06:56:22,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:22,895 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:22,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 06:56:23,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-19 06:56:23,096 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:23,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:23,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2052208996, now seen corresponding path program 1 times [2022-11-19 06:56:23,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:23,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660240080] [2022-11-19 06:56:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:23,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:23,282 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:56:23,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:23,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660240080] [2022-11-19 06:56:23,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660240080] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:23,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161210907] [2022-11-19 06:56:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:23,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:23,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:23,284 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:23,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-19 06:56:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:23,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:56:23,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:56:23,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:56:23,676 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 06:56:23,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161210907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:56:23,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2008748312] [2022-11-19 06:56:23,679 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-19 06:56:23,680 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:56:23,680 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:56:23,680 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:56:23,680 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:56:23,732 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:56:23,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:56:23,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 06:56:23,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:23,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:23,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:23,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:23,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:56:23,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:23,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:23,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:56:23,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:23,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:23,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:23,946 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 06:56:23,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 06:56:23,984 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 06:56:23,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 06:56:24,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,300 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 06:56:24,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-11-19 06:56:24,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,373 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 06:56:24,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-11-19 06:56:24,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-11-19 06:56:24,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:24,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:24,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:24,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:24,558 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 06:56:24,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 401 [2022-11-19 06:56:24,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 229 [2022-11-19 06:56:24,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:24,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:24,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:24,688 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-19 06:56:24,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 360 treesize of output 384 [2022-11-19 06:56:24,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,814 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 06:56:24,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 365 treesize of output 320 [2022-11-19 06:56:24,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 54 [2022-11-19 06:56:24,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:24,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:24,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 17 [2022-11-19 06:56:24,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:25,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 328 [2022-11-19 06:56:25,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:25,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 308 treesize of output 294 [2022-11-19 06:56:25,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:25,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:25,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:25,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:25,479 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:56:25,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 06:56:25,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:25,548 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:25,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-11-19 06:56:25,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:56:25,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:56:25,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:25,687 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:25,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 06:56:25,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 06:56:25,733 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:25,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 145 [2022-11-19 06:56:25,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:56:25,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 91 [2022-11-19 06:56:25,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:25,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:25,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:25,963 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:25,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-19 06:56:25,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:25,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:26,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:26,031 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 06:56:26,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-19 06:56:26,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:26,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:26,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:56:26,138 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:26,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:56:26,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:26,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:56:26,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:26,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:26,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 06:56:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:26,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:26,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-19 06:56:26,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 06:56:26,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:26,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:26,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:26,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:26,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:26,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:26,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:26,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:26,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:26,917 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:56:30,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2008748312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:30,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:56:30,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6, 5, 5] total 23 [2022-11-19 06:56:30,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511286939] [2022-11-19 06:56:30,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:30,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 06:56:30,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:30,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 06:56:30,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=429, Unknown=3, NotChecked=0, Total=552 [2022-11-19 06:56:30,165 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:30,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:30,891 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2022-11-19 06:56:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 06:56:30,892 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-19 06:56:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:30,893 INFO L225 Difference]: With dead ends: 77 [2022-11-19 06:56:30,893 INFO L226 Difference]: Without dead ends: 75 [2022-11-19 06:56:30,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 65 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=129, Invalid=468, Unknown=3, NotChecked=0, Total=600 [2022-11-19 06:56:30,894 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 81 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:30,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 62 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 49 Unchecked, 0.3s Time] [2022-11-19 06:56:30,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-19 06:56:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2022-11-19 06:56:30,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 64 states have internal predecessors, (71), 0 states have call successors, (0), 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 06:56:30,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2022-11-19 06:56:30,913 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 31 [2022-11-19 06:56:30,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:30,913 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2022-11-19 06:56:30,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:30,914 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2022-11-19 06:56:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 06:56:30,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:30,915 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:30,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-19 06:56:31,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:31,122 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:31,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:31,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1501122809, now seen corresponding path program 1 times [2022-11-19 06:56:31,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:31,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059344198] [2022-11-19 06:56:31,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:31,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 06:56:31,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:31,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059344198] [2022-11-19 06:56:31,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059344198] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:31,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457073233] [2022-11-19 06:56:31,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:31,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:31,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:31,341 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:31,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-19 06:56:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:31,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:56:31,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:56:31,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:56:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:56:31,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457073233] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:56:31,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [705767429] [2022-11-19 06:56:31,736 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-11-19 06:56:31,736 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:56:31,736 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:56:31,736 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:56:31,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:56:31,781 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:56:31,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 06:56:31,826 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:56:31,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:56:31,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:31,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:31,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:56:31,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:31,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:31,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:56:31,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:31,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:31,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:31,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:31,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:32,008 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-19 06:56:32,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 235 [2022-11-19 06:56:32,086 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-19 06:56:32,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 230 treesize of output 245 [2022-11-19 06:56:32,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:32,538 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-19 06:56:32,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 241 treesize of output 227 [2022-11-19 06:56:32,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:32,657 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 06:56:32,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 245 treesize of output 230 [2022-11-19 06:56:32,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 225 [2022-11-19 06:56:32,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:32,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:32,847 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-19 06:56:32,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 381 treesize of output 404 [2022-11-19 06:56:32,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 312 treesize of output 303 [2022-11-19 06:56:32,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:32,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 476 [2022-11-19 06:56:32,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:32,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:32,972 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-19 06:56:32,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 395 treesize of output 350 [2022-11-19 06:56:33,123 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:33,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 326 treesize of output 257 [2022-11-19 06:56:33,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 190 [2022-11-19 06:56:33,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2022-11-19 06:56:33,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 657 treesize of output 612 [2022-11-19 06:56:33,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 592 treesize of output 572 [2022-11-19 06:56:33,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:33,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:33,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:33,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:33,716 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:33,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-19 06:56:33,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:33,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:33,781 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 06:56:33,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-19 06:56:33,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:56:33,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:56:33,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 43 [2022-11-19 06:56:33,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:56:33,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:56:33,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:33,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:34,013 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:34,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 65 [2022-11-19 06:56:34,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2022-11-19 06:56:34,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:56:34,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:34,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:34,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:34,282 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:34,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-19 06:56:34,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:34,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:34,346 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 06:56:34,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-19 06:56:34,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:56:34,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:34,458 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:34,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 06:56:34,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 06:56:34,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 53 [2022-11-19 06:56:34,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:56:34,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:34,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-19 06:56:34,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:34,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:34,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:34,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:34,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:34,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:34,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:34,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:34,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:35,483 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:56:38,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [705767429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:38,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:56:38,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6, 5, 5] total 27 [2022-11-19 06:56:38,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577878612] [2022-11-19 06:56:38,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:38,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 06:56:38,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:38,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 06:56:38,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=628, Unknown=2, NotChecked=0, Total=756 [2022-11-19 06:56:38,666 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 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 06:56:41,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:41,816 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2022-11-19 06:56:41,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 06:56:41,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-19 06:56:41,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:41,818 INFO L225 Difference]: With dead ends: 90 [2022-11-19 06:56:41,818 INFO L226 Difference]: Without dead ends: 86 [2022-11-19 06:56:41,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 73 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=277, Invalid=1361, Unknown=2, NotChecked=0, Total=1640 [2022-11-19 06:56:41,819 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 84 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:41,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 44 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 213 Invalid, 0 Unknown, 18 Unchecked, 0.4s Time] [2022-11-19 06:56:41,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-19 06:56:41,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 74. [2022-11-19 06:56:41,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 73 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2022-11-19 06:56:41,835 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 34 [2022-11-19 06:56:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:41,835 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2022-11-19 06:56:41,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 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 06:56:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2022-11-19 06:56:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 06:56:41,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:41,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:41,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-19 06:56:42,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:42,036 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:42,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:42,037 INFO L85 PathProgramCache]: Analyzing trace with hash 709833314, now seen corresponding path program 1 times [2022-11-19 06:56:42,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:42,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290292190] [2022-11-19 06:56:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:42,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 06:56:42,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:42,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290292190] [2022-11-19 06:56:42,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290292190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:42,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:56:42,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:56:42,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229403279] [2022-11-19 06:56:42,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:42,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:56:42,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:42,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:56:42,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:56:42,103 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 06:56:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:42,168 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2022-11-19 06:56:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:56:42,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 35 [2022-11-19 06:56:42,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:42,169 INFO L225 Difference]: With dead ends: 74 [2022-11-19 06:56:42,169 INFO L226 Difference]: Without dead ends: 48 [2022-11-19 06:56:42,171 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 06:56:42,172 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:42,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 40 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:56:42,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-19 06:56:42,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-19 06:56:42,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 47 states have internal predecessors, (51), 0 states have call successors, (0), 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 06:56:42,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-11-19 06:56:42,184 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 35 [2022-11-19 06:56:42,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:42,184 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-11-19 06:56:42,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 06:56:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-11-19 06:56:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 06:56:42,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:42,185 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:42,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 06:56:42,185 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash 116563978, now seen corresponding path program 1 times [2022-11-19 06:56:42,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:42,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335050633] [2022-11-19 06:56:42,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:42,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-19 06:56:42,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335050633] [2022-11-19 06:56:42,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335050633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:42,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19024856] [2022-11-19 06:56:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:42,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:42,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:42,375 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:42,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-19 06:56:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:42,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:56:42,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 06:56:42,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:56:42,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19024856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:42,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:56:42,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-19 06:56:42,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62914458] [2022-11-19 06:56:42,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:42,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:56:42,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:42,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:56:42,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-19 06:56:42,734 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 06:56:42,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:42,848 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2022-11-19 06:56:42,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:56:42,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 38 [2022-11-19 06:56:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:42,849 INFO L225 Difference]: With dead ends: 48 [2022-11-19 06:56:42,849 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 06:56:42,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-19 06:56:42,852 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 22 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:42,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 42 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:56:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 06:56:42,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2022-11-19 06:56:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 44 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 06:56:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2022-11-19 06:56:42,864 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 38 [2022-11-19 06:56:42,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:42,864 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-11-19 06:56:42,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 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 06:56:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2022-11-19 06:56:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 06:56:42,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:42,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:42,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-19 06:56:43,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:43,065 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:43,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:43,066 INFO L85 PathProgramCache]: Analyzing trace with hash 348837420, now seen corresponding path program 1 times [2022-11-19 06:56:43,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:43,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6531238] [2022-11-19 06:56:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:43,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 06:56:43,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:43,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6531238] [2022-11-19 06:56:43,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6531238] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:43,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311261533] [2022-11-19 06:56:43,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:43,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:43,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:43,223 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:43,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-19 06:56:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:43,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:56:43,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 06:56:43,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:56:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 06:56:43,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311261533] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:56:43,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2083523402] [2022-11-19 06:56:43,603 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-19 06:56:43,603 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:56:43,603 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:56:43,603 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:56:43,603 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:56:43,643 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:56:43,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 06:56:43,678 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:56:43,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:56:43,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:43,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:43,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:43,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:43,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:56:43,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:43,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:43,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:56:43,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:43,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:43,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:43,840 INFO L321 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-19 06:56:43,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 227 treesize of output 235 [2022-11-19 06:56:43,903 INFO L321 Elim1Store]: treesize reduction 78, result has 26.4 percent of original size [2022-11-19 06:56:43,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 230 treesize of output 245 [2022-11-19 06:56:44,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:44,310 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-19 06:56:44,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 241 treesize of output 227 [2022-11-19 06:56:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:44,390 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-19 06:56:44,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 245 treesize of output 230 [2022-11-19 06:56:44,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 225 [2022-11-19 06:56:44,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:44,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:44,531 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-19 06:56:44,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 381 treesize of output 399 [2022-11-19 06:56:44,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 312 treesize of output 303 [2022-11-19 06:56:44,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:44,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 481 [2022-11-19 06:56:44,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 120 [2022-11-19 06:56:44,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 84 [2022-11-19 06:56:44,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-11-19 06:56:44,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 642 treesize of output 597 [2022-11-19 06:56:44,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 577 treesize of output 557 [2022-11-19 06:56:44,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:44,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:44,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:44,982 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-19 06:56:44,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 589 treesize of output 544 [2022-11-19 06:56:45,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:45,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:45,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:45,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:45,315 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:56:45,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-19 06:56:45,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:45,382 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:45,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-19 06:56:45,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:56:45,465 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:45,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:56:45,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:56:45,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:45,520 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:45,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-19 06:56:45,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-19 06:56:45,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:45,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:45,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:45,773 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:56:45,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-11-19 06:56:45,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:45,857 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:45,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-19 06:56:45,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:56:45,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:45,964 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-19 06:56:45,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-19 06:56:45,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:45,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:56:46,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 06:56:46,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:46,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:46,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-19 06:56:46,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 06:56:46,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:46,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:46,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:46,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:46,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:46,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:46,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:46,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:46,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:46,817 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:56:50,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2083523402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:56:50,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:56:50,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6, 6, 6] total 29 [2022-11-19 06:56:50,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118334155] [2022-11-19 06:56:50,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:56:50,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 06:56:50,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:56:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 06:56:50,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=718, Unknown=3, NotChecked=0, Total=870 [2022-11-19 06:56:50,880 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 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 06:56:52,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:56:52,880 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2022-11-19 06:56:52,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 06:56:52,880 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 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) Word has length 40 [2022-11-19 06:56:52,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:56:52,881 INFO L225 Difference]: With dead ends: 65 [2022-11-19 06:56:52,881 INFO L226 Difference]: Without dead ends: 63 [2022-11-19 06:56:52,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 88 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=274, Invalid=1205, Unknown=3, NotChecked=0, Total=1482 [2022-11-19 06:56:52,882 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 71 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:56:52,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 46 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 191 Invalid, 0 Unknown, 34 Unchecked, 0.3s Time] [2022-11-19 06:56:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-19 06:56:52,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 51. [2022-11-19 06:56:52,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:56:52,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-11-19 06:56:52,895 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 40 [2022-11-19 06:56:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:56:52,896 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-11-19 06:56:52,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 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 06:56:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-11-19 06:56:52,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 06:56:52,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:52,897 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:56:52,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-19 06:56:53,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:53,104 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-19 06:56:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:53,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1605141185, now seen corresponding path program 1 times [2022-11-19 06:56:53,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:53,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143479233] [2022-11-19 06:56:53,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:53,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 06:56:53,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:56:53,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143479233] [2022-11-19 06:56:53,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143479233] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:56:53,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913262244] [2022-11-19 06:56:53,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:53,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:56:53,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:53,285 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:56:53,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-19 06:56:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:56:53,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 06:56:53,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:56:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 06:56:53,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:56:53,693 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 06:56:53,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913262244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:56:53,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1522814377] [2022-11-19 06:56:53,696 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-19 06:56:53,696 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:56:53,697 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:56:53,697 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:56:53,697 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:56:53,747 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:56:53,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 06:56:53,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 06:56:53,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:53,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:53,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:53,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:53,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:53,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-19 06:56:53,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:53,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:53,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-19 06:56:53,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:53,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:53,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-19 06:56:53,970 INFO L321 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-19 06:56:53,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 232 treesize of output 255 [2022-11-19 06:56:54,008 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-19 06:56:54,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 225 treesize of output 233 [2022-11-19 06:56:54,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,323 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 06:56:54,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 219 [2022-11-19 06:56:54,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,391 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 06:56:54,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 237 treesize of output 222 [2022-11-19 06:56:54,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-11-19 06:56:54,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 217 [2022-11-19 06:56:54,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:54,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:54,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:54,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:54,545 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-19 06:56:54,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 373 treesize of output 401 [2022-11-19 06:56:54,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:54,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:54,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:54,616 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-19 06:56:54,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 360 treesize of output 389 [2022-11-19 06:56:54,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 54 [2022-11-19 06:56:54,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:54,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 17 [2022-11-19 06:56:54,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 06:56:54,852 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:54,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 61 [2022-11-19 06:56:54,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-19 06:56:54,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-19 06:56:54,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:54,965 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-19 06:56:54,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 548 treesize of output 503 [2022-11-19 06:56:55,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:55,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:55,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:55,447 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:55,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-19 06:56:55,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:55,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:55,507 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-19 06:56:55,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-19 06:56:55,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-19 06:56:55,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:55,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 06:56:55,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-19 06:56:55,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 06:56:55,692 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:55,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 57 [2022-11-19 06:56:55,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 06:56:55,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2022-11-19 06:56:55,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 06:56:55,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 06:56:55,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:55,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:55,873 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 06:56:55,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-11-19 06:56:55,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:56:55,932 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-19 06:56:55,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 164 [2022-11-19 06:56:55,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:56:55,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:55,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-19 06:56:56,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 43 [2022-11-19 06:56:56,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:56:56,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:56,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:56,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-19 06:56:56,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:56,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-19 06:56:56,101 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-19 06:56:56,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 65 [2022-11-19 06:56:56,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:56,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:56:56,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2022-11-19 06:56:56,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-19 06:56:56,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:56,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:56,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:56,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:56,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:56,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:56,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:56,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 06:56:56,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:56:57,156 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:57:00,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1522814377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:00,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:57:00,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [8, 8, 8] total 28 [2022-11-19 06:57:00,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278465994] [2022-11-19 06:57:00,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:00,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-19 06:57:00,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:00,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-19 06:57:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=635, Unknown=2, NotChecked=0, Total=756 [2022-11-19 06:57:00,645 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 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 06:57:03,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:03,328 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2022-11-19 06:57:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-19 06:57:03,329 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-11-19 06:57:03,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:03,329 INFO L225 Difference]: With dead ends: 60 [2022-11-19 06:57:03,329 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:57:03,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 97 SyntacticMatches, 12 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=303, Invalid=1417, Unknown=2, NotChecked=0, Total=1722 [2022-11-19 06:57:03,331 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 70 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 130 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:03,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 6 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 180 Invalid, 0 Unknown, 130 Unchecked, 0.3s Time] [2022-11-19 06:57:03,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:57:03,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:57:03,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:57:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:57:03,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2022-11-19 06:57:03,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:03,333 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:57:03,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 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 06:57:03,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:57:03,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:57:03,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-19 06:57:03,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-19 06:57:03,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-19 06:57:03,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-19 06:57:03,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-19 06:57:03,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-19 06:57:03,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-19 06:57:03,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-19 06:57:03,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-19 06:57:03,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-19 06:57:03,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-19 06:57:03,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-19 06:57:03,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-19 06:57:03,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-19 06:57:03,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-19 06:57:03,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-19 06:57:03,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:57:12,937 WARN L233 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 147 DAG size of output: 146 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-19 06:57:35,893 WARN L233 SmtUtils]: Spent 22.37s on a formula simplification. DAG size of input: 153 DAG size of output: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-19 06:57:40,035 INFO L902 garLoopResultBuilder]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2022-11-19 06:57:40,035 INFO L902 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: true [2022-11-19 06:57:40,035 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2022-11-19 06:57:40,035 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 630) no Hoare annotation was computed. [2022-11-19 06:57:40,036 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2022-11-19 06:57:40,036 INFO L899 garLoopResultBuilder]: For program point L630-1(line 630) no Hoare annotation was computed. [2022-11-19 06:57:40,036 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 591) no Hoare annotation was computed. [2022-11-19 06:57:40,036 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2022-11-19 06:57:40,036 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-11-19 06:57:40,036 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-11-19 06:57:40,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 06:57:40,037 INFO L902 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: true [2022-11-19 06:57:40,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 634) no Hoare annotation was computed. [2022-11-19 06:57:40,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-11-19 06:57:40,037 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-11-19 06:57:40,037 INFO L899 garLoopResultBuilder]: For program point L599-1(line 599) no Hoare annotation was computed. [2022-11-19 06:57:40,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 634) no Hoare annotation was computed. [2022-11-19 06:57:40,038 INFO L899 garLoopResultBuilder]: For program point L633-3(line 633) no Hoare annotation was computed. [2022-11-19 06:57:40,038 INFO L899 garLoopResultBuilder]: For program point L633-4(line 633) no Hoare annotation was computed. [2022-11-19 06:57:40,038 INFO L895 garLoopResultBuilder]: At program point L633-5(lines 633 638) the Hoare annotation is: (and (let ((.cse0 (= |#NULL.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse0))) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_update_at_~index#1| 1) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0)) [2022-11-19 06:57:40,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 613) no Hoare annotation was computed. [2022-11-19 06:57:40,038 INFO L902 garLoopResultBuilder]: At program point L642(lines 624 643) the Hoare annotation is: true [2022-11-19 06:57:40,039 INFO L899 garLoopResultBuilder]: For program point L634(line 634) no Hoare annotation was computed. [2022-11-19 06:57:40,039 INFO L899 garLoopResultBuilder]: For program point L634-1(line 634) no Hoare annotation was computed. [2022-11-19 06:57:40,039 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 613) no Hoare annotation was computed. [2022-11-19 06:57:40,039 INFO L895 garLoopResultBuilder]: At program point L618-2(lines 618 621) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|)) (.cse1 (<= 0 |ULTIMATE.start_main_~s~0#1.offset|)) (.cse2 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse3 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse4 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|)) (.cse6 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse7 (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0)) (.cse8 (<= 0 |ULTIMATE.start_dll_create_~len#1|)) (.cse9 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse10 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse11 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse12 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse13 (= |#NULL.offset| 0)) (.cse14 (let ((.cse25 (= |ULTIMATE.start_main_~data~0#1| 1))) (or (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse25) (and .cse25 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))))) (.cse15 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse16 (<= 2 |ULTIMATE.start_dll_update_at_~data#1|)) (.cse17 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse18 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse19 (<= 2 |ULTIMATE.start_main_~new_data~0#1|)) (.cse20 (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|)) (.cse21 (<= 0 |#StackHeapBarrier|)) (.cse22 (<= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse23 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse24 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 (<= |ULTIMATE.start_dll_update_at_~index#1| 1) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (<= |ULTIMATE.start_main_~i~0#1| 1) .cse20 .cse21 .cse22 .cse23 .cse24) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~0#1| 0) .cse3 .cse4 .cse5 .cse6 (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse7 .cse8 (<= |ULTIMATE.start_dll_update_at_~head#1.offset| 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 (= |ULTIMATE.start_dll_update_at_~index#1| 0) .cse24))) [2022-11-19 06:57:40,039 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 620) no Hoare annotation was computed. [2022-11-19 06:57:40,040 INFO L895 garLoopResultBuilder]: At program point L635(lines 635 637) the Hoare annotation is: (and (let ((.cse0 (= |#NULL.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse0))) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~expected~0#1| 4) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_get_data_at_#in~index#1| 2) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (<= |ULTIMATE.start_dll_update_at_~index#1| 1) (<= 0 (+ |ULTIMATE.start_main_#t~ret15#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#res#1| |ULTIMATE.start_main_#t~ret15#1|) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= |ULTIMATE.start_main_#t~ret15#1| 2147483647) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0)) [2022-11-19 06:57:40,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 633) no Hoare annotation was computed. [2022-11-19 06:57:40,040 INFO L895 garLoopResultBuilder]: At program point L611-2(lines 611 614) the Hoare annotation is: (and (let ((.cse0 (= |#NULL.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse0))) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~expected~0#1| 4) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_get_data_at_#in~index#1| 2) (<= |ULTIMATE.start_dll_update_at_~index#1| 1) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 2) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0)) [2022-11-19 06:57:40,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:57:40,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 620) no Hoare annotation was computed. [2022-11-19 06:57:40,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 633) no Hoare annotation was computed. [2022-11-19 06:57:40,040 INFO L899 garLoopResultBuilder]: For program point L620(line 620) no Hoare annotation was computed. [2022-11-19 06:57:40,041 INFO L899 garLoopResultBuilder]: For program point L620-1(line 620) no Hoare annotation was computed. [2022-11-19 06:57:40,041 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 587 600) the Hoare annotation is: (let ((.cse0 (let ((.cse13 (= |#NULL.offset| 0))) (or (and .cse13 (= |ULTIMATE.start_dll_create_~head~0#1.base| 0)) (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) .cse13)))) (.cse1 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse2 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse3 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse4 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse5 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse7 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse8 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse9 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse11 (<= 0 |#StackHeapBarrier|)) (.cse12 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 0 |ULTIMATE.start_dll_create_~len#1|) .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_dll_create_~len#1| 1) .cse10 .cse11 .cse12) (and .cse0 .cse1 .cse2 (= 2 |ULTIMATE.start_dll_create_~len#1|) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12))) [2022-11-19 06:57:40,041 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 630) no Hoare annotation was computed. [2022-11-19 06:57:40,041 INFO L902 garLoopResultBuilder]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2022-11-19 06:57:40,041 INFO L899 garLoopResultBuilder]: For program point L629-3(line 629) no Hoare annotation was computed. [2022-11-19 06:57:40,041 INFO L899 garLoopResultBuilder]: For program point L629-4(line 629) no Hoare annotation was computed. [2022-11-19 06:57:40,041 INFO L895 garLoopResultBuilder]: At program point L629-5(lines 629 632) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|)) (.cse6 (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|)) (.cse7 (<= |ULTIMATE.start_dll_update_at_~index#1| 1)) (.cse9 (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0)) (.cse18 (<= 2 |ULTIMATE.start_dll_update_at_~data#1|)) (.cse21 (<= 2 |ULTIMATE.start_main_~new_data~0#1|)) (.cse22 (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~s~0#1.offset|)) (.cse2 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse3 (or (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |ULTIMATE.start_dll_create_~head~0#1.base| 0))) (.cse4 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse5 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse8 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse10 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse11 (<= 0 |ULTIMATE.start_dll_create_~len#1|)) (.cse12 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse13 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse14 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse15 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse16 (= |#NULL.offset| 0)) (.cse17 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse19 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse20 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse23 (<= 0 |#StackHeapBarrier|)) (.cse24 (<= |ULTIMATE.start_main_~s~0#1.offset| 0)) (.cse25 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse26 (= |#NULL.base| 0))) (or (and .cse0 (<= 0 |ULTIMATE.start_dll_update_at_~index#1|) .cse1 .cse2 .cse3 .cse4 (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse5 .cse6 .cse7 .cse8 (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|) .cse9 .cse10 .cse11 (<= |ULTIMATE.start_dll_update_at_~head#1.offset| 0) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 (<= |ULTIMATE.start_main_~i~0#1| 1) .cse22 .cse23 .cse24 .cse25 .cse26) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 (< |ULTIMATE.start_main_~i~0#1| 2147483646)) (and .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~i~0#1| 0) .cse4 .cse5 .cse8 (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse19 (= |ULTIMATE.start_dll_create_#res#1.base| |ULTIMATE.start_main_~s~0#1.base|) .cse20 .cse23 .cse24 .cse25 .cse26))) [2022-11-19 06:57:40,041 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-11-19 06:57:40,042 INFO L899 garLoopResultBuilder]: For program point L613(line 613) no Hoare annotation was computed. [2022-11-19 06:57:40,042 INFO L899 garLoopResultBuilder]: For program point L613-1(line 613) no Hoare annotation was computed. [2022-11-19 06:57:40,044 INFO L444 BasicCegarLoop]: Path program histogram: [2, 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 06:57:40,047 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:57:40,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:57:40 BoogieIcfgContainer [2022-11-19 06:57:40,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:57:40,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:57:40,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:57:40,100 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:57:40,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:55:36" (3/4) ... [2022-11-19 06:57:40,105 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:57:40,111 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-11-19 06:57:40,122 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-19 06:57:40,122 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-19 06:57:40,122 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 06:57:40,123 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:57:40,151 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 1 <= data) && 2 <= \old(len)) && data <= 1) && data == 1) && 0 <= len) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && len <= 1) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 1 <= data) && 2 <= \old(len)) && 2 == len) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-19 06:57:40,152 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && 0 <= head) && head <= 0) && data == 1) && 0 <= len) && head <= 0) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && head <= 0) && 2 <= i) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) && i < 2147483646)) || ((((((((((((((((((((((0 <= s && 1 <= data) && (new_head == 0 || head == 0)) && i == 0) && 2 <= \old(len)) && \result <= 0) && data <= 1) && head == \result) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && head <= 0) && \result == s) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) [2022-11-19 06:57:40,152 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 0 <= s) && 1 <= data) && 2 <= \old(len)) && i <= 2147483647) && \result <= 0) && index <= 1) && data <= 1) && 0 <= i) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0 [2022-11-19 06:57:40,153 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && head <= 0) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && i == 0) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && data <= 1) && 0 <= head) && head <= 0) && 0 <= len) && head <= 0) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && index == 0) && #NULL == 0) [2022-11-19 06:57:40,154 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && 2 <= \old(len)) && \result <= 0) && \old(index) <= 2) && index <= 1) && data <= 1) && index <= 2) && 0 <= i) && data == 1) && 0 <= head) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 2 <= expected) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0 [2022-11-19 06:57:40,155 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && 2 <= \old(len)) && \result <= 0) && \old(index) <= 2) && unknown-#memory_int-unknown[head][head] == \result) && index <= 1) && 0 <= aux-dll_get_data_at(s, i)-aux + 2147483648) && \result == aux-dll_get_data_at(s, i)-aux) && index <= 0) && data <= 1) && 0 <= i) && data == 1) && 0 <= head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 2 <= expected) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0 [2022-11-19 06:57:40,180 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:57:40,181 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:57:40,182 INFO L158 Benchmark]: Toolchain (without parser) took 125172.88ms. Allocated memory was 119.5MB in the beginning and 509.6MB in the end (delta: 390.1MB). Free memory was 79.3MB in the beginning and 370.3MB in the end (delta: -291.0MB). Peak memory consumption was 97.9MB. Max. memory is 16.1GB. [2022-11-19 06:57:40,182 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory was 97.0MB in the beginning and 97.0MB in the end (delta: 54.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:57:40,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.96ms. Allocated memory is still 119.5MB. Free memory was 79.1MB in the beginning and 85.0MB in the end (delta: -5.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:57:40,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.89ms. Allocated memory is still 119.5MB. Free memory was 84.6MB in the beginning and 82.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:57:40,182 INFO L158 Benchmark]: Boogie Preprocessor took 39.07ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 80.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:57:40,183 INFO L158 Benchmark]: RCFGBuilder took 757.59ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 60.9MB in the end (delta: 19.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-19 06:57:40,183 INFO L158 Benchmark]: TraceAbstraction took 123562.41ms. Allocated memory was 119.5MB in the beginning and 509.6MB in the end (delta: 390.1MB). Free memory was 60.2MB in the beginning and 373.4MB in the end (delta: -313.3MB). Peak memory consumption was 276.0MB. Max. memory is 16.1GB. [2022-11-19 06:57:40,183 INFO L158 Benchmark]: Witness Printer took 82.06ms. Allocated memory is still 509.6MB. Free memory was 373.4MB in the beginning and 370.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:57:40,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory was 97.0MB in the beginning and 97.0MB in the end (delta: 54.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.96ms. Allocated memory is still 119.5MB. Free memory was 79.1MB in the beginning and 85.0MB in the end (delta: -5.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.89ms. Allocated memory is still 119.5MB. Free memory was 84.6MB in the beginning and 82.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.07ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 80.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 757.59ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 60.9MB in the end (delta: 19.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 123562.41ms. Allocated memory was 119.5MB in the beginning and 509.6MB in the end (delta: 390.1MB). Free memory was 60.2MB in the beginning and 373.4MB in the end (delta: -313.3MB). Peak memory consumption was 276.0MB. Max. memory is 16.1GB. * Witness Printer took 82.06ms. Allocated memory is still 509.6MB. Free memory was 373.4MB in the beginning and 370.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 123.4s, OverallIterations: 24, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 36.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1151 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1151 mSDsluCounter, 1576 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 383 IncrementalHoareTripleChecker+Unchecked, 1124 mSDsCounter, 143 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2036 IncrementalHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 143 mSolverCounterUnsat, 452 mSDtfsCounter, 2036 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1093 GetRequests, 693 SyntacticMatches, 66 SemanticMatches, 334 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2790 ImplicationChecksByTransitivity, 36.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=16, InterpolantAutomatonStates: 224, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 24 MinimizatonAttempts, 211 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 44 NumberOfFragments, 882 HoareAnnotationTreeSize, 13 FomulaSimplifications, 95174 FormulaSimplificationTreeSizeReduction, 32.4s HoareSimplificationTime, 11 FomulaSimplificationsInter, 342183 FormulaSimplificationTreeSizeReductionInter, 4.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 955 NumberOfCodeBlocks, 939 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1174 ConstructedInterpolants, 0 QuantifiedInterpolants, 2976 SizeOfPredicates, 38 NumberOfNonLiveVariables, 3997 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 49 InterpolantComputations, 14 PerfectInterpolantSequences, 434/550 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 24.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 125, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 452, TOOLS_POST_TIME: 23.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 452, TOOLS_QUANTIFIERELIM_TIME: 22.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.5s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 727, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 41, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 27, DOMAIN_WIDEN_TIME: 0.4s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 53, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 125, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 26, LOOP_SUMMARIZER_CACHE_MISSES: 26, LOOP_SUMMARIZER_OVERALL_TIME: 18.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 18.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 53, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 3318, DAG_COMPRESSION_RETAINED_NODES: 501, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((0 <= head && 0 <= index) && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && 0 <= head) && head <= 0) && data == 1) && 0 <= len) && head <= 0) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && (new_head == 0 || head == 0)) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && head <= 0) && 2 <= i) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) && i < 2147483646)) || ((((((((((((((((((((((0 <= s && 1 <= data) && (new_head == 0 || head == 0)) && i == 0) && 2 <= \old(len)) && \result <= 0) && data <= 1) && head == \result) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && \old(data) <= 1) && head <= 0) && \result == s) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && 2 <= \old(len)) && \result <= 0) && \old(index) <= 2) && index <= 1) && data <= 1) && index <= 2) && 0 <= i) && data == 1) && 0 <= head) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 2 <= expected) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: ((((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 1 <= data) && 2 <= \old(len)) && data <= 1) && data == 1) && 0 <= len) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && len <= 1) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 1 <= data) && 2 <= \old(len)) && 2 == len) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 0 <= s) && 1 <= data) && 2 <= \old(len)) && i <= 2147483647) && \result <= 0) && index <= 1) && data <= 1) && 0 <= i) && data == 1) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((#NULL == 0 && head == 0) || (new_head == 0 && #NULL == 0)) && 0 <= s) && head <= 0) && 1 <= data) && expected <= 4) && 2 <= \old(len)) && \result <= 0) && \old(index) <= 2) && unknown-#memory_int-unknown[head][head] == \result) && index <= 1) && 0 <= aux-dll_get_data_at(s, i)-aux + 2147483648) && \result == aux-dll_get_data_at(s, i)-aux) && index <= 0) && data <= 1) && 0 <= i) && data == 1) && 0 <= head) && aux-dll_get_data_at(s, i)-aux <= 2147483647) && 0 <= len) && \old(len) <= 2) && 0 <= \old(index)) && len <= 0) && 1 <= \old(data)) && len == 2) && \old(data) <= 1) && head <= 0) && 0 <= head) && 2 <= expected) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && 2 <= \old(len)) && 1 <= i) && \result <= 0) && 0 <= \old(index)) && index <= 1) && data <= 1) && head <= 0) && 0 <= len) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && i <= 1) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && #NULL == 0) || ((((((((((((((((((((((((((((0 <= head && 0 <= s) && 1 <= data) && i == 0) && 2 <= \old(len)) && \result <= 0) && 0 <= \old(index)) && data <= 1) && 0 <= head) && head <= 0) && 0 <= len) && head <= 0) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && ((new_head == 0 && data == 1) || (data == 1 && head == 0))) && \old(data) <= 1) && 2 <= data) && head <= 0) && 0 <= head) && 2 <= new_data) && 2 <= \old(data)) && 0 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && 0 <= \result) && index == 0) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-19 06:57:40,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e00ea08d-2e27-4604-88f1-fd41ad22c289/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE