./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur --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 b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 --- 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-38b53e6 [2022-11-26 00:24:43,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:24:43,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:24:43,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:24:43,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:24:43,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:24:43,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:24:43,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:24:43,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:24:43,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:24:43,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:24:43,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:24:43,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:24:43,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:24:43,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:24:43,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:24:43,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:24:43,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:24:43,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:24:43,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:24:43,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:24:43,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:24:43,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:24:43,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:24:43,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:24:43,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:24:43,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:24:43,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:24:43,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:24:43,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:24:43,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:24:43,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:24:43,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:24:43,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:24:43,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:24:43,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:24:43,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:24:43,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:24:43,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:24:43,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:24:43,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:24:43,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:24:43,742 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:24:43,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:24:43,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:24:43,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:24:43,744 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:24:43,744 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:24:43,744 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:24:43,745 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:24:43,745 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:24:43,745 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:24:43,746 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:24:43,746 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:24:43,747 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:24:43,747 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:24:43,747 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:24:43,747 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:24:43,748 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:24:43,748 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:24:43,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:24:43,749 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:24:43,750 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:24:43,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:24:43,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:24:43,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:24:43,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:24:43,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:24:43,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:24:43,751 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:24:43,752 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:24:43,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:24:43,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:24:43,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:24:43,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:24:43,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:24:43,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:43,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:24:43,754 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:24:43,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:24:43,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:24:43,755 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:24:43,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:24:43,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:24:43,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:24:43,756 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_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36390e4ace21fb538f0c1df6f562bcf2825b5901fb45d9987e6242615034592 [2022-11-26 00:24:44,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:24:44,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:24:44,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:24:44,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:24:44,129 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:24:44,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2022-11-26 00:24:47,127 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:24:47,420 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:24:47,420 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/sv-benchmarks/c/list-ext-properties/test-0232_1-1.i [2022-11-26 00:24:47,432 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/data/dadb82f09/1b1dce1ba49842289bd63f47a468abfe/FLAGc10a5e2cc [2022-11-26 00:24:47,447 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/data/dadb82f09/1b1dce1ba49842289bd63f47a468abfe [2022-11-26 00:24:47,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:24:47,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:24:47,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:47,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:24:47,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:24:47,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:47,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29a9e415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47, skipping insertion in model container [2022-11-26 00:24:47,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:47,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:24:47,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:24:47,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:47,832 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:24:47,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:47,943 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:24:47,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47 WrapperNode [2022-11-26 00:24:47,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:47,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:47,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:24:47,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:24:47,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:47,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:47,986 INFO L138 Inliner]: procedures = 126, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2022-11-26 00:24:47,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:47,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:24:47,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:24:47,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:24:47,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:47,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:48,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:48,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:48,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:48,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:48,012 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:48,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:48,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:24:48,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:24:48,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:24:48,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:24:48,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (1/1) ... [2022-11-26 00:24:48,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:48,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:48,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:24:48,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:24:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:24:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:24:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:24:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:24:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:24:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:24:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:24:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:24:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:24:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:24:48,219 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:24:48,222 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:24:48,492 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:24:48,599 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:24:48,599 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:24:48,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:48 BoogieIcfgContainer [2022-11-26 00:24:48,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:24:48,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:24:48,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:24:48,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:24:48,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:24:47" (1/3) ... [2022-11-26 00:24:48,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390d6ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:48, skipping insertion in model container [2022-11-26 00:24:48,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:47" (2/3) ... [2022-11-26 00:24:48,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390d6ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:48, skipping insertion in model container [2022-11-26 00:24:48,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:48" (3/3) ... [2022-11-26 00:24:48,612 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0232_1-1.i [2022-11-26 00:24:48,632 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:24:48,632 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-26 00:24:48,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:24:48,704 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;@7072e36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:24:48,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-26 00:24:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 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) [2022-11-26 00:24:48,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:24:48,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:48,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:24:48,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:48,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:48,723 INFO L85 PathProgramCache]: Analyzing trace with hash 99176, now seen corresponding path program 1 times [2022-11-26 00:24:48,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:48,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40403535] [2022-11-26 00:24:48,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:48,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:48,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:48,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40403535] [2022-11-26 00:24:48,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40403535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:48,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:48,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370654246] [2022-11-26 00:24:48,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:48,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:24:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:49,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:24:49,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:24:49,032 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 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) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:49,115 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-26 00:24:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:24:49,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-26 00:24:49,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:49,126 INFO L225 Difference]: With dead ends: 38 [2022-11-26 00:24:49,126 INFO L226 Difference]: Without dead ends: 24 [2022-11-26 00:24:49,129 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 [2022-11-26 00:24:49,133 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:49,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 48 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:24:49,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-26 00:24:49,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-26 00:24:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.625) internal successors, (26), 23 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) [2022-11-26 00:24:49,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-26 00:24:49,168 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 3 [2022-11-26 00:24:49,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:49,169 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-26 00:24:49,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:49,169 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-26 00:24:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:24:49,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:49,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:24:49,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:24:49,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:49,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:49,171 INFO L85 PathProgramCache]: Analyzing trace with hash 95311597, now seen corresponding path program 1 times [2022-11-26 00:24:49,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:49,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067204613] [2022-11-26 00:24:49,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:49,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:49,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:49,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067204613] [2022-11-26 00:24:49,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067204613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:49,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:49,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:49,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683039163] [2022-11-26 00:24:49,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:49,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:24:49,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:49,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:24:49,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:24:49,377 INFO L87 Difference]: Start difference. First operand 24 states and 26 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) [2022-11-26 00:24:49,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:49,442 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-26 00:24:49,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:24:49,442 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 [2022-11-26 00:24:49,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:49,443 INFO L225 Difference]: With dead ends: 28 [2022-11-26 00:24:49,443 INFO L226 Difference]: Without dead ends: 26 [2022-11-26 00:24:49,444 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 [2022-11-26 00:24:49,445 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:49,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 49 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:49,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-26 00:24:49,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-26 00:24:49,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 25 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) [2022-11-26 00:24:49,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-11-26 00:24:49,451 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 5 [2022-11-26 00:24:49,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:49,452 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-11-26 00:24:49,452 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) [2022-11-26 00:24:49,452 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-11-26 00:24:49,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:24:49,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:49,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:49,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:24:49,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:49,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:49,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1204736416, now seen corresponding path program 1 times [2022-11-26 00:24:49,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:49,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151721570] [2022-11-26 00:24:49,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:49,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:49,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:49,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151721570] [2022-11-26 00:24:49,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151721570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:49,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:49,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:49,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878892398] [2022-11-26 00:24:49,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:49,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:49,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:49,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:49,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:49,562 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-11-26 00:24:49,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:49,598 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-11-26 00:24:49,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:49,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2022-11-26 00:24:49,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:49,600 INFO L225 Difference]: With dead ends: 26 [2022-11-26 00:24:49,600 INFO L226 Difference]: Without dead ends: 25 [2022-11-26 00:24:49,601 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 [2022-11-26 00:24:49,602 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:49,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:49,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-26 00:24:49,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-26 00:24:49,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.5) internal successors, (27), 24 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) [2022-11-26 00:24:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-26 00:24:49,608 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2022-11-26 00:24:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:49,608 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-26 00:24:49,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-11-26 00:24:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-26 00:24:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:24:49,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:49,610 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:49,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:24:49,610 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:49,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:49,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1204736100, now seen corresponding path program 1 times [2022-11-26 00:24:49,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:49,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056708248] [2022-11-26 00:24:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:49,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:49,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:49,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:49,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056708248] [2022-11-26 00:24:49,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056708248] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:24:49,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648934350] [2022-11-26 00:24:49,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:49,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:49,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:49,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:24:49,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:24:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:50,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:24:50,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:50,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:50,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648934350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:50,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:24:50,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-26 00:24:50,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916635083] [2022-11-26 00:24:50,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:50,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:24:50,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:24:50,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:24:50,156 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2022-11-26 00:24:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:50,263 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-11-26 00:24:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:24:50,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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 [2022-11-26 00:24:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:50,265 INFO L225 Difference]: With dead ends: 25 [2022-11-26 00:24:50,265 INFO L226 Difference]: Without dead ends: 24 [2022-11-26 00:24:50,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:24:50,270 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 34 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:50,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 36 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:24:50,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-26 00:24:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-26 00:24:50,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 23 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) [2022-11-26 00:24:50,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-26 00:24:50,280 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 9 [2022-11-26 00:24:50,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:50,280 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-26 00:24:50,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2022-11-26 00:24:50,281 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-26 00:24:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:24:50,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:50,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:50,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:50,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:50,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:50,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:50,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1307903183, now seen corresponding path program 1 times [2022-11-26 00:24:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:50,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632050805] [2022-11-26 00:24:50,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:50,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:50,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:50,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632050805] [2022-11-26 00:24:50,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632050805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:50,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:50,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:24:50,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110848895] [2022-11-26 00:24:50,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:50,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:24:50,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:50,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:24:50,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:24:50,591 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2022-11-26 00:24:50,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:50,670 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-11-26 00:24:50,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:24:50,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 [2022-11-26 00:24:50,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:50,672 INFO L225 Difference]: With dead ends: 39 [2022-11-26 00:24:50,672 INFO L226 Difference]: Without dead ends: 34 [2022-11-26 00:24:50,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:24:50,673 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 16 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:50,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 55 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:24:50,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-26 00:24:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2022-11-26 00:24:50,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:50,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-26 00:24:50,677 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 10 [2022-11-26 00:24:50,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:50,678 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-26 00:24:50,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2022-11-26 00:24:50,678 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-26 00:24:50,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:24:50,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:50,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:50,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:24:50,679 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:50,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:50,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1307876691, now seen corresponding path program 1 times [2022-11-26 00:24:50,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:50,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449213077] [2022-11-26 00:24:50,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:50,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:50,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:50,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449213077] [2022-11-26 00:24:50,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449213077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:50,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:50,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:24:50,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889421951] [2022-11-26 00:24:50,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:50,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:24:50,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:50,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:24:50,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:24:50,800 INFO L87 Difference]: Start difference. First operand 26 states and 29 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) [2022-11-26 00:24:50,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:50,900 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2022-11-26 00:24:50,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:24:50,902 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 [2022-11-26 00:24:50,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:50,903 INFO L225 Difference]: With dead ends: 42 [2022-11-26 00:24:50,903 INFO L226 Difference]: Without dead ends: 41 [2022-11-26 00:24:50,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:24:50,904 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:50,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 61 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:24:50,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-26 00:24:50,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 28. [2022-11-26 00:24:50,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:50,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-26 00:24:50,909 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 10 [2022-11-26 00:24:50,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:50,910 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-26 00:24:50,910 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) [2022-11-26 00:24:50,910 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-26 00:24:50,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:24:50,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:50,911 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:50,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:24:50,911 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:50,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1307886524, now seen corresponding path program 1 times [2022-11-26 00:24:50,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:50,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256872711] [2022-11-26 00:24:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:50,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:50,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256872711] [2022-11-26 00:24:50,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256872711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:50,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:50,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:24:50,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042789029] [2022-11-26 00:24:50,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:50,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:24:50,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:50,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:24:50,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:24:50,971 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-11-26 00:24:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:51,011 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-26 00:24:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:24:51,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 [2022-11-26 00:24:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:51,014 INFO L225 Difference]: With dead ends: 28 [2022-11-26 00:24:51,014 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:24:51,014 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 [2022-11-26 00:24:51,015 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:51,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:51,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:24:51,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-26 00:24:51,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:51,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-26 00:24:51,020 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2022-11-26 00:24:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:51,021 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-26 00:24:51,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-11-26 00:24:51,021 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-26 00:24:51,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:24:51,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:51,022 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-26 00:24:51,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:24:51,022 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:51,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:51,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1889774359, now seen corresponding path program 1 times [2022-11-26 00:24:51,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:51,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421456794] [2022-11-26 00:24:51,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:51,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:51,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:51,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:51,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421456794] [2022-11-26 00:24:51,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421456794] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:24:51,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8601838] [2022-11-26 00:24:51,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:51,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:51,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:51,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:24:51,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:24:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:51,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:24:51,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:51,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:51,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:51,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8601838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:51,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:24:51,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2022-11-26 00:24:51,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4131414] [2022-11-26 00:24:51,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:51,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:24:51,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:51,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:24:51,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:24:51,407 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:51,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:51,449 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-26 00:24:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:24:51,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-26 00:24:51,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:51,451 INFO L225 Difference]: With dead ends: 28 [2022-11-26 00:24:51,451 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:24:51,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:24:51,452 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:51,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:51,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:24:51,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-11-26 00:24:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:51,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-26 00:24:51,457 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 11 [2022-11-26 00:24:51,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:51,457 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-26 00:24:51,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:51,458 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-26 00:24:51,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:24:51,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:51,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:51,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:51,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-26 00:24:51,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:51,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:51,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1555920495, now seen corresponding path program 1 times [2022-11-26 00:24:51,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:51,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144686944] [2022-11-26 00:24:51,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:51,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:51,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:51,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144686944] [2022-11-26 00:24:51,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144686944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:51,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:51,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:51,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177903163] [2022-11-26 00:24:51,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:51,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:24:51,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:51,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:24:51,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:24:51,748 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2022-11-26 00:24:51,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:51,775 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-26 00:24:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:24:51,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 [2022-11-26 00:24:51,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:51,776 INFO L225 Difference]: With dead ends: 26 [2022-11-26 00:24:51,776 INFO L226 Difference]: Without dead ends: 25 [2022-11-26 00:24:51,777 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 [2022-11-26 00:24:51,777 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:51,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-26 00:24:51,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-26 00:24:51,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 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) [2022-11-26 00:24:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-26 00:24:51,783 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 12 [2022-11-26 00:24:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:51,783 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-26 00:24:51,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) [2022-11-26 00:24:51,784 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-26 00:24:51,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:24:51,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:51,785 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2022-11-26 00:24:51,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:24:51,785 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:24:51,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:51,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1546537068, now seen corresponding path program 1 times [2022-11-26 00:24:51,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:51,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573621550] [2022-11-26 00:24:51,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:51,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:51,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:51,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573621550] [2022-11-26 00:24:51,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573621550] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:24:51,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118215781] [2022-11-26 00:24:51,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:51,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:51,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:51,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:24:51,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:24:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:52,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:24:52,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:52,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:24:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:52,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118215781] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:24:52,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2042338176] [2022-11-26 00:24:52,162 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-26 00:24:52,162 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:24:52,165 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:24:52,170 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:24:52,170 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:24:52,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,264 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:24:52,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-26 00:24:52,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,303 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:24:52,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:24:52,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,500 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-26 00:24:52,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 217 [2022-11-26 00:24:52,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,696 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-11-26 00:24:52,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 223 [2022-11-26 00:24:52,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,877 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-11-26 00:24:52,878 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 199 [2022-11-26 00:24:52,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:52,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,041 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-11-26 00:24:53,042 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 221 [2022-11-26 00:24:53,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,256 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:24:53,256 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 1 case distinctions, treesize of input 56 treesize of output 41 [2022-11-26 00:24:53,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:53,589 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 00:24:53,589 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 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-26 00:24:53,642 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:24:53,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 193 [2022-11-26 00:24:53,804 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-26 00:24:53,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-11-26 00:24:53,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:53,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:54,004 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:24:54,005 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 3 case distinctions, treesize of input 212 treesize of output 221 [2022-11-26 00:24:54,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:54,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:54,160 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:24:54,160 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 3 case distinctions, treesize of input 219 treesize of output 228 [2022-11-26 00:24:54,577 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-26 00:24:54,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:24:54,644 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:24:54,851 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:24:54,913 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:24:58,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:58,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:58,642 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 00:24:58,643 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 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-26 00:24:58,793 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-26 00:24:58,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 207 [2022-11-26 00:24:58,865 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:24:58,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 183 [2022-11-26 00:24:58,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:58,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:59,024 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:24:59,025 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 3 case distinctions, treesize of input 212 treesize of output 221 [2022-11-26 00:24:59,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:59,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:59,166 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:24:59,167 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 3 case distinctions, treesize of input 219 treesize of output 228 [2022-11-26 00:24:59,486 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-26 00:24:59,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:24:59,574 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:00,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 42 treesize of output 7 [2022-11-26 00:25:10,141 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:25:18,873 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '793#(and (<= ~c~0 2147483647) (= |ULTIMATE.start_main_~#list~0#1.offset| 0) (or (and (= (select |#length| |ULTIMATE.start_append_~item~0#1.base|) 8) (= (select |#valid| |ULTIMATE.start_append_~item~0#1.base|) 1) (or (and (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0))) (or (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) |ULTIMATE.start_append_~plist#1.base|)) (not (= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4) |ULTIMATE.start_append_~plist#1.offset|))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4))) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)))) (and (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) |ULTIMATE.start_append_~plist#1.base|) (= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 4) |ULTIMATE.start_append_~plist#1.offset|) (= |ULTIMATE.start_append_~plist#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)))))) (and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) 0)) (= (select |#length| |ULTIMATE.start_append_~item~0#1.base|) 8) (< (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) |#StackHeapBarrier|) (= (select |#valid| |ULTIMATE.start_append_~item~0#1.base|) 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4))) 1) (= (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4))) 8) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) |ULTIMATE.start_append_~item~0#1.offset|) 0) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~item~0#1.base|) (+ |ULTIMATE.start_append_~item~0#1.offset| 4)) |ULTIMATE.start_append_~item~0#1.base|)))) (= |ULTIMATE.start_main_~#list~0#1.base| |ULTIMATE.start_append_#in~plist#1.base|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_append_~plist#1.base|) |ULTIMATE.start_append_~plist#1.offset|) |ULTIMATE.start_append_~item~0#1.base|) (= |ULTIMATE.start_main_~length~0#1| |ULTIMATE.start_main_#t~post12#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_append_~plist#1.base|) |ULTIMATE.start_append_~plist#1.offset|) |ULTIMATE.start_append_~item~0#1.offset|) (< 2147483646 |ULTIMATE.start_main_#t~post12#1|) (< |ULTIMATE.start_append_~item~0#1.base| |#StackHeapBarrier|) (<= |#NULL.offset| 0) (<= 1 ~c~0) (= |ULTIMATE.start_append_#in~plist#1.base| |ULTIMATE.start_append_~plist#1.base|) (<= 0 |ULTIMATE.start_main_~#list~0#1.base|) (= |ULTIMATE.start_append_#in~plist#1.offset| |ULTIMATE.start_main_~#list~0#1.offset|) (= |ULTIMATE.start_append_~item~0#1.offset| 0) (not (= |ULTIMATE.start_append_~item~0#1.base| 0)) (= |ULTIMATE.start_append_#in~plist#1.offset| |ULTIMATE.start_append_~plist#1.offset|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-26 00:25:18,873 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:25:18,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:25:18,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-26 00:25:18,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410515440] [2022-11-26 00:25:18,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:25:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:25:18,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:25:18,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:25:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:25:18,875 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:19,071 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-11-26 00:25:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:25:19,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:25:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:19,072 INFO L225 Difference]: With dead ends: 56 [2022-11-26 00:25:19,073 INFO L226 Difference]: Without dead ends: 50 [2022-11-26 00:25:19,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:25:19,074 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:19,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 72 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:25:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-26 00:25:19,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2022-11-26 00:25:19,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) 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) [2022-11-26 00:25:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-26 00:25:19,081 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 12 [2022-11-26 00:25:19,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:19,081 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-26 00:25:19,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-26 00:25:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:25:19,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:19,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:19,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:19,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-26 00:25:19,283 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:25:19,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:19,284 INFO L85 PathProgramCache]: Analyzing trace with hash 988895181, now seen corresponding path program 1 times [2022-11-26 00:25:19,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:25:19,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955987580] [2022-11-26 00:25:19,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:19,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:25:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:19,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:25:19,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955987580] [2022-11-26 00:25:19,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955987580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:19,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:19,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:25:19,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751899522] [2022-11-26 00:25:19,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:19,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:25:19,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:25:19,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:25:19,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:25:19,401 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:19,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:19,482 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-11-26 00:25:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:25:19,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-26 00:25:19,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:19,483 INFO L225 Difference]: With dead ends: 47 [2022-11-26 00:25:19,483 INFO L226 Difference]: Without dead ends: 39 [2022-11-26 00:25:19,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:25:19,484 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:19,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:25:19,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-26 00:25:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-26 00:25:19,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 38 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) [2022-11-26 00:25:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-11-26 00:25:19,488 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 13 [2022-11-26 00:25:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:19,488 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-11-26 00:25:19,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-11-26 00:25:19,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:25:19,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:19,489 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:19,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:25:19,489 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:25:19,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:19,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1801928143, now seen corresponding path program 1 times [2022-11-26 00:25:19,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:25:19,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44774061] [2022-11-26 00:25:19,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:19,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:25:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:19,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:25:19,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44774061] [2022-11-26 00:25:19,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44774061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:25:19,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525674632] [2022-11-26 00:25:19,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:19,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:25:19,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:25:19,642 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:25:19,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:25:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:19,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:25:19,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:19,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:25:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:19,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525674632] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:25:19,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1066259933] [2022-11-26 00:25:19,906 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-26 00:25:19,907 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:25:19,907 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:25:19,907 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:25:19,908 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:25:19,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:19,938 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:25:19,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:25:19,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:19,950 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 [2022-11-26 00:25:20,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,076 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-26 00:25:20,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 212 [2022-11-26 00:25:20,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,213 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-11-26 00:25:20,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 223 [2022-11-26 00:25:20,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,349 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-11-26 00:25:20,350 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 222 [2022-11-26 00:25:20,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,467 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-11-26 00:25:20,467 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 198 [2022-11-26 00:25:20,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,566 INFO L321 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2022-11-26 00:25:20,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 46 treesize of output 48 [2022-11-26 00:25:20,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,617 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 37 treesize of output 28 [2022-11-26 00:25:20,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,630 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 30 treesize of output 21 [2022-11-26 00:25:20,812 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:25:20,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 188 [2022-11-26 00:25:20,942 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-26 00:25:20,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-11-26 00:25:20,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:20,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:21,113 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:25:21,114 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 3 case distinctions, treesize of input 212 treesize of output 221 [2022-11-26 00:25:21,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:21,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:21,251 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:25:21,252 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 3 case distinctions, treesize of input 219 treesize of output 228 [2022-11-26 00:25:26,612 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:26,659 INFO L321 Elim1Store]: treesize reduction 40, result has 24.5 percent of original size [2022-11-26 00:25:26,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 66 treesize of output 86 [2022-11-26 00:25:26,709 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-26 00:25:26,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 33 treesize of output 11 [2022-11-26 00:25:26,752 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:26,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:26,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 7 [2022-11-26 00:25:26,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:26,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 7 [2022-11-26 00:25:26,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:26,869 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 29 treesize of output 7 [2022-11-26 00:25:26,899 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 14 treesize of output 3 [2022-11-26 00:25:26,937 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:26,975 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,028 INFO L321 Elim1Store]: treesize reduction 40, result has 24.5 percent of original size [2022-11-26 00:25:27,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 66 treesize of output 86 [2022-11-26 00:25:27,092 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-26 00:25:27,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 33 treesize of output 11 [2022-11-26 00:25:27,129 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,169 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,212 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,265 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,290 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,315 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,341 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,359 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,377 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,404 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,455 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,477 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,506 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,560 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,585 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,619 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,669 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,687 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,702 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,720 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,762 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,781 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,804 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,832 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,861 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,903 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,941 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,967 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:27,996 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,028 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,059 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,109 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,142 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,177 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,203 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,238 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,272 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,310 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,338 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,383 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,411 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,434 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,481 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,507 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,536 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,571 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,607 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,642 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:28,669 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:29,426 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-11-26 00:25:29,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 321 treesize of output 294 [2022-11-26 00:25:29,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:29,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:29,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:29,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:29,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:29,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:29,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:29,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:29,736 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-11-26 00:25:29,737 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 319 treesize of output 292 [2022-11-26 00:25:29,816 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:29,843 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-11-26 00:25:29,844 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 479 treesize of output 430 [2022-11-26 00:25:29,900 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:29,928 INFO L321 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2022-11-26 00:25:29,929 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 477 treesize of output 428 [2022-11-26 00:25:29,983 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:29,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:30,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:32,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:32,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:32,386 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 00:25:32,386 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 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-26 00:25:33,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:33,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:33,124 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 00:25:33,125 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 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-26 00:25:33,271 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-26 00:25:33,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 207 [2022-11-26 00:25:33,338 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:25:33,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-26 00:25:33,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:33,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:33,476 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:25:33,477 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 3 case distinctions, treesize of input 212 treesize of output 221 [2022-11-26 00:25:33,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:33,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:33,599 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:25:33,599 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 3 case distinctions, treesize of input 219 treesize of output 228 [2022-11-26 00:25:37,020 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 3 [2022-11-26 00:25:37,100 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,127 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,175 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,194 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,229 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,290 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,316 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,352 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,389 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:37,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 42 treesize of output 7 [2022-11-26 00:25:41,709 INFO L321 Elim1Store]: treesize reduction 36, result has 43.8 percent of original size [2022-11-26 00:25:41,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 58 [2022-11-26 00:25:41,743 INFO L321 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2022-11-26 00:25:41,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 56 [2022-11-26 00:25:41,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:25:41,780 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 [2022-11-26 00:25:42,086 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:25:42,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1066259933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:42,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:25:42,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5, 5] total 17 [2022-11-26 00:25:42,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514311144] [2022-11-26 00:25:42,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:42,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:25:42,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:25:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:25:42,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:25:42,966 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:43,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:43,076 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-11-26 00:25:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:25:43,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-26 00:25:43,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:43,077 INFO L225 Difference]: With dead ends: 43 [2022-11-26 00:25:43,077 INFO L226 Difference]: Without dead ends: 42 [2022-11-26 00:25:43,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:25:43,078 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:43,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:25:43,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-26 00:25:43,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2022-11-26 00:25:43,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:43,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-11-26 00:25:43,083 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 16 [2022-11-26 00:25:43,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:43,083 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-11-26 00:25:43,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:25:43,084 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-11-26 00:25:43,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-26 00:25:43,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:43,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:43,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:43,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:25:43,290 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-26 00:25:43,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:43,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1555012041, now seen corresponding path program 1 times [2022-11-26 00:25:43,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:25:43,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281957434] [2022-11-26 00:25:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:43,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:25:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:43,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:25:43,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281957434] [2022-11-26 00:25:43,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281957434] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:25:43,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87476273] [2022-11-26 00:25:43,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:43,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:25:43,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:25:43,481 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:25:43,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5109b2-41ca-4d2c-a3e7-090966820259/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:25:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:43,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-26 00:25:43,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:43,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:43,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:25:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:25:43,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87476273] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:25:43,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [842844160] [2022-11-26 00:25:43,837 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-26 00:25:43,837 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:25:43,837 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:25:43,837 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:25:43,837 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:25:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,878 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:25:43,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:25:43,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,889 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 [2022-11-26 00:25:43,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,950 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:25:43,950 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 1 case distinctions, treesize of input 56 treesize of output 41 [2022-11-26 00:25:43,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:43,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,050 INFO L321 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2022-11-26 00:25:44,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 184 treesize of output 212 [2022-11-26 00:25:44,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,179 INFO L321 Elim1Store]: treesize reduction 144, result has 7.1 percent of original size [2022-11-26 00:25:44,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 186 treesize of output 223 [2022-11-26 00:25:44,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,337 INFO L321 Elim1Store]: treesize reduction 83, result has 37.6 percent of original size [2022-11-26 00:25:44,338 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 222 [2022-11-26 00:25:44,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,428 INFO L321 Elim1Store]: treesize reduction 107, result has 19.5 percent of original size [2022-11-26 00:25:44,428 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 198 [2022-11-26 00:25:44,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,511 INFO L321 Elim1Store]: treesize reduction 112, result has 21.7 percent of original size [2022-11-26 00:25:44,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 46 treesize of output 48 [2022-11-26 00:25:44,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,904 INFO L321 Elim1Store]: treesize reduction 182, result has 2.7 percent of original size [2022-11-26 00:25:44,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 230 treesize of output 264 [2022-11-26 00:25:44,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:44,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:45,180 INFO L217 Elim1Store]: Index analysis took 148 ms [2022-11-26 00:25:46,177 INFO L321 Elim1Store]: treesize reduction 498, result has 14.3 percent of original size [2022-11-26 00:25:46,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 269 treesize of output 347 [2022-11-26 00:25:46,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:46,413 INFO L321 Elim1Store]: treesize reduction 211, result has 8.7 percent of original size [2022-11-26 00:25:46,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 402 treesize of output 272 [2022-11-26 00:25:46,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,526 INFO L321 Elim1Store]: treesize reduction 158, result has 5.4 percent of original size [2022-11-26 00:25:46,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 270 treesize of output 237 [2022-11-26 00:25:46,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,665 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 45 treesize of output 36 [2022-11-26 00:25:46,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,677 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 38 treesize of output 29 [2022-11-26 00:25:46,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:46,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:46,825 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-26 00:25:46,826 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 1 case distinctions, treesize of input 41 treesize of output 21 [2022-11-26 00:25:46,869 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:25:46,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 188 [2022-11-26 00:25:46,998 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-26 00:25:46,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 166 treesize of output 203 [2022-11-26 00:25:47,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:47,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:47,140 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:25:47,141 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 3 case distinctions, treesize of input 212 treesize of output 221 [2022-11-26 00:25:47,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:47,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:47,251 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:25:47,252 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 3 case distinctions, treesize of input 219 treesize of output 228 [2022-11-26 00:25:47,480 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-26 00:25:47,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:47,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-11-26 00:25:48,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:48,928 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 [2022-11-26 00:25:48,934 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 [2022-11-26 00:25:49,073 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-26 00:25:49,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 175 treesize of output 212 [2022-11-26 00:25:49,134 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:25:49,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2022-11-26 00:25:49,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:49,268 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:25:49,268 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 3 case distinctions, treesize of input 212 treesize of output 221 [2022-11-26 00:25:49,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:49,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:49,386 INFO L321 Elim1Store]: treesize reduction 95, result has 39.1 percent of original size [2022-11-26 00:25:49,387 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 3 case distinctions, treesize of input 219 treesize of output 228 [2022-11-26 00:25:50,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:50,688 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:50,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:50,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-26 00:25:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:50,759 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:50,792 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:50,814 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:50,840 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:50,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:50,865 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-26 00:25:50,890 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:50,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:50,956 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:50,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:50,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-26 00:25:51,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:51,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-26 00:25:51,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:51,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 3 [2022-11-26 00:25:51,092 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:51,130 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:51,162 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,186 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,224 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,255 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,283 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:51,315 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 0 case distinctions, treesize of input 29 treesize of output 7 [2022-11-26 00:25:51,353 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,378 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,410 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,437 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-11-26 00:25:51,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-11-26 00:25:51,572 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,624 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,650 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,702 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,722 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,745 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,780 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,827 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:51,846 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:25:54,224 INFO L321 Elim1Store]: treesize reduction 36, result has 43.8 percent of original size [2022-11-26 00:25:54,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 58 [2022-11-26 00:25:54,258 INFO L321 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2022-11-26 00:25:54,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 52 [2022-11-26 00:25:54,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:25:54,298 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 [2022-11-26 00:25:54,388 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 [2022-11-26 00:25:54,660 INFO L321 Elim1Store]: treesize reduction 280, result has 36.8 percent of original size [2022-11-26 00:25:54,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 165 treesize of output 282 [2022-11-26 00:25:54,949 INFO L321 Elim1Store]: treesize reduction 272, result has 36.3 percent of original size [2022-11-26 00:25:54,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 159 treesize of output 268 [2022-11-26 00:25:55,024 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-11-26 00:25:55,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 106 [2022-11-26 00:27:11,792 WARN L233 SmtUtils]: Spent 10.25s on a formula simplification that was a NOOP. DAG size: 900 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:27:51,579 WARN L233 SmtUtils]: Spent 6.78s on a formula simplification that was a NOOP. DAG size: 895 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:28:26,303 WARN L233 SmtUtils]: Spent 7.50s on a formula simplification that was a NOOP. DAG size: 895 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:29:38,475 WARN L233 SmtUtils]: Spent 29.39s on a formula simplification that was a NOOP. DAG size: 1289 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:30:14,438 WARN L233 SmtUtils]: Spent 17.56s on a formula simplification that was a NOOP. DAG size: 1286 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:30:32,089 WARN L233 SmtUtils]: Spent 9.13s on a formula simplification that was a NOOP. DAG size: 1279 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:32:04,394 WARN L233 SmtUtils]: Spent 10.69s on a formula simplification that was a NOOP. DAG size: 1604 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:33:56,533 WARN L233 SmtUtils]: Spent 18.67s on a formula simplification that was a NOOP. DAG size: 1286 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:34:22,749 WARN L233 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 1279 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:34:39,528 WARN L233 SmtUtils]: Spent 7.37s on a formula simplification that was a NOOP. DAG size: 893 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:35:18,555 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 1184 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:36:40,315 WARN L233 SmtUtils]: Spent 31.17s on a formula simplification. DAG size of input: 1280 DAG size of output: 1259 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:36:55,973 WARN L233 SmtUtils]: Spent 15.65s on a formula simplification that was a NOOP. DAG size: 1262 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-26 00:37:12,113 WARN L233 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 1260 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)