./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s3if.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/s3if.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1607ef1a0546f5061a453264a19ed217d8c8fc9b28320eac9d61d4efa33b72e --- 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-b5237d8 [2022-11-22 01:55:14,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:55:14,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:55:14,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:55:14,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:55:14,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:55:14,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:55:14,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:55:14,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:55:14,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:55:14,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:55:14,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:55:14,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:55:14,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:55:14,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:55:14,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:55:14,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:55:14,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:55:14,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:55:14,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:55:14,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:55:14,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:55:14,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:55:14,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:55:14,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:55:14,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:55:14,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:55:14,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:55:14,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:55:14,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:55:14,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:55:14,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:55:14,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:55:14,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:55:14,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:55:14,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:55:14,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:55:14,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:55:14,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:55:14,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:55:14,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:55:14,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:55:14,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:55:14,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:55:14,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:55:14,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:55:14,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:55:14,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:55:14,711 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:55:14,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:55:14,712 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:55:14,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:55:14,713 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:55:14,713 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:55:14,713 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:55:14,714 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:55:14,714 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:55:14,714 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:55:14,714 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:55:14,714 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:55:14,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:55:14,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:55:14,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:55:14,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:55:14,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:55:14,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:55:14,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:55:14,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:55:14,717 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:55:14,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:55:14,717 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:55:14,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:55:14,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:55:14,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:55:14,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:14,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:55:14,718 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:55:14,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:55:14,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:55:14,719 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:55:14,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:55:14,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:55:14,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:55:14,720 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_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1607ef1a0546f5061a453264a19ed217d8c8fc9b28320eac9d61d4efa33b72e [2022-11-22 01:55:14,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:55:15,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:55:15,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:55:15,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:55:15,023 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:55:15,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-fpi/s3if.c [2022-11-22 01:55:18,225 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:55:18,457 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:55:18,458 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/sv-benchmarks/c/array-fpi/s3if.c [2022-11-22 01:55:18,465 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/data/65ee099f0/3c9e056fc7e4445681fbf0dd71a19599/FLAGef8272ce5 [2022-11-22 01:55:18,480 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/data/65ee099f0/3c9e056fc7e4445681fbf0dd71a19599 [2022-11-22 01:55:18,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:55:18,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:55:18,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:55:18,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:55:18,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:55:18,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff83552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18, skipping insertion in model container [2022-11-22 01:55:18,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:55:18,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:55:18,689 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/sv-benchmarks/c/array-fpi/s3if.c[587,600] [2022-11-22 01:55:18,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:55:18,718 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:55:18,731 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/sv-benchmarks/c/array-fpi/s3if.c[587,600] [2022-11-22 01:55:18,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:55:18,752 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:55:18,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18 WrapperNode [2022-11-22 01:55:18,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:55:18,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:55:18,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:55:18,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:55:18,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,791 INFO L138 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-11-22 01:55:18,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:55:18,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:55:18,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:55:18,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:55:18,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,817 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:55:18,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:55:18,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:55:18,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:55:18,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (1/1) ... [2022-11-22 01:55:18,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:18,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:18,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:55:18,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:55:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:55:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:55:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:55:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:55:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:55:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:55:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:55:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:55:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:55:19,000 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:55:19,003 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:55:19,240 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:55:19,290 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:55:19,290 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:55:19,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:19 BoogieIcfgContainer [2022-11-22 01:55:19,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:55:19,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:55:19,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:55:19,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:55:19,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:55:18" (1/3) ... [2022-11-22 01:55:19,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e85dc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:19, skipping insertion in model container [2022-11-22 01:55:19,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:18" (2/3) ... [2022-11-22 01:55:19,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e85dc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:19, skipping insertion in model container [2022-11-22 01:55:19,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:19" (3/3) ... [2022-11-22 01:55:19,321 INFO L112 eAbstractionObserver]: Analyzing ICFG s3if.c [2022-11-22 01:55:19,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:55:19,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:55:19,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:55:19,453 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;@20608f80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:55:19,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:55:19,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 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) [2022-11-22 01:55:19,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:55:19,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:19,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:55:19,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:19,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1569409207, now seen corresponding path program 1 times [2022-11-22 01:55:19,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:19,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973072739] [2022-11-22 01:55:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:19,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:19,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:19,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973072739] [2022-11-22 01:55:19,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973072739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:19,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:19,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:55:19,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443362171] [2022-11-22 01:55:19,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:19,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:19,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:19,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:19,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:19,941 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:20,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:20,012 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-11-22 01:55:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:55:20,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:20,028 INFO L225 Difference]: With dead ends: 18 [2022-11-22 01:55:20,028 INFO L226 Difference]: Without dead ends: 8 [2022-11-22 01:55:20,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:20,035 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:20,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:55:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-22 01:55:20,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-22 01:55:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 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) [2022-11-22 01:55:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-11-22 01:55:20,072 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2022-11-22 01:55:20,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:20,073 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-22 01:55:20,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-11-22 01:55:20,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:55:20,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:20,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:20,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:55:20,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:20,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:20,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1413550180, now seen corresponding path program 1 times [2022-11-22 01:55:20,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:20,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121072018] [2022-11-22 01:55:20,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:20,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:55:20,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:20,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121072018] [2022-11-22 01:55:20,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121072018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:20,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:20,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:55:20,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429193050] [2022-11-22 01:55:20,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:20,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:55:20,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:20,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:55:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:55:20,196 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:20,219 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-11-22 01:55:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:55:20,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:55:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:20,220 INFO L225 Difference]: With dead ends: 12 [2022-11-22 01:55:20,220 INFO L226 Difference]: Without dead ends: 9 [2022-11-22 01:55:20,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:55:20,222 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:20,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:55:20,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-22 01:55:20,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-22 01:55:20,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 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) [2022-11-22 01:55:20,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-11-22 01:55:20,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2022-11-22 01:55:20,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:20,227 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-22 01:55:20,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:20,228 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-11-22 01:55:20,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:55:20,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:20,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:20,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:55:20,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:20,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:20,230 INFO L85 PathProgramCache]: Analyzing trace with hash -870274037, now seen corresponding path program 1 times [2022-11-22 01:55:20,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:20,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862100729] [2022-11-22 01:55:20,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:20,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:20,252 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:20,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383755326] [2022-11-22 01:55:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:20,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:20,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:20,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:20,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:55:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:20,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-22 01:55:20,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:20,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 01:55:20,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:55:20,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:55:20,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-22 01:55:20,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2022-11-22 01:55:20,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:20,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:20,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:55:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:21,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:21,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862100729] [2022-11-22 01:55:21,169 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:21,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383755326] [2022-11-22 01:55:21,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383755326] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:21,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1040965272] [2022-11-22 01:55:21,191 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:21,191 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:21,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:21,202 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:21,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:21,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,289 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:55:21,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:55:21,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,391 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:55:21,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:55:21,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,526 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:21,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:21,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2022-11-22 01:55:21,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:21,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:21,971 INFO L321 Elim1Store]: treesize reduction 214, result has 11.9 percent of original size [2022-11-22 01:55:21,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 434 treesize of output 423 [2022-11-22 01:55:22,133 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 16 treesize of output 12 [2022-11-22 01:55:22,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:22,227 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:22,228 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:55:22,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:22,307 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:22,308 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:55:22,430 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:22,431 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:22,539 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:22,540 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:22,586 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:23,106 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '138#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:23,106 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:23,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:23,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-22 01:55:23,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344672819] [2022-11-22 01:55:23,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:23,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:55:23,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:23,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:55:23,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:55:23,108 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:23,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:23,234 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-22 01:55:23,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:55:23,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 01:55:23,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:23,236 INFO L225 Difference]: With dead ends: 15 [2022-11-22 01:55:23,236 INFO L226 Difference]: Without dead ends: 12 [2022-11-22 01:55:23,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:55:23,237 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:23,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:55:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-22 01:55:23,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2022-11-22 01:55:23,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 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) [2022-11-22 01:55:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-22 01:55:23,242 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2022-11-22 01:55:23,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:23,243 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-22 01:55:23,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:23,243 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-22 01:55:23,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:55:23,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:23,244 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:23,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:23,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:23,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:23,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1208582788, now seen corresponding path program 2 times [2022-11-22 01:55:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:23,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648119907] [2022-11-22 01:55:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:23,467 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:23,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480327973] [2022-11-22 01:55:23,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:55:23,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:23,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:23,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:23,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:55:23,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 01:55:23,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:55:23,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:55:23,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:23,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:23,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:23,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648119907] [2022-11-22 01:55:23,633 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:23,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480327973] [2022-11-22 01:55:23,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480327973] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:23,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1776999318] [2022-11-22 01:55:23,645 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:23,646 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:23,646 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:23,646 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:23,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:23,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:23,697 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:55:23,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:55:23,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:23,788 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:55:23,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:55:23,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:23,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:23,901 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:23,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:23,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:23,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:23,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:55:24,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:24,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:24,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:24,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:24,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:24,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:24,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:24,233 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:55:24,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:55:24,361 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 16 treesize of output 12 [2022-11-22 01:55:24,408 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:24,408 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:55:24,452 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:24,452 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:55:24,569 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:24,570 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:24,628 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:24,628 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:24,746 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:25,172 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '239#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:25,172 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:25,172 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:25,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-11-22 01:55:25,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934878574] [2022-11-22 01:55:25,173 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:25,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:55:25,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:25,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:55:25,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:55:25,174 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2022-11-22 01:55:25,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:25,286 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-22 01:55:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:55:25,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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 9 [2022-11-22 01:55:25,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:25,287 INFO L225 Difference]: With dead ends: 20 [2022-11-22 01:55:25,287 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 01:55:25,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:55:25,288 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:25,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:55:25,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 01:55:25,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 10. [2022-11-22 01:55:25,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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) [2022-11-22 01:55:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-11-22 01:55:25,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 9 [2022-11-22 01:55:25,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:25,291 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-11-22 01:55:25,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2022-11-22 01:55:25,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-11-22 01:55:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:55:25,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:25,292 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:25,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:25,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:25,515 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:25,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:25,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1413604450, now seen corresponding path program 3 times [2022-11-22 01:55:25,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:25,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330287809] [2022-11-22 01:55:25,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:25,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:25,529 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:25,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342106363] [2022-11-22 01:55:25,529 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:55:25,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:25,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:25,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:25,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:55:25,607 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:55:25,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:55:25,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:55:25,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:25,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:25,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:25,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330287809] [2022-11-22 01:55:25,704 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:25,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342106363] [2022-11-22 01:55:25,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342106363] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:25,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [154238301] [2022-11-22 01:55:25,709 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:25,709 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:25,711 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:25,712 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:25,716 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:25,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:25,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:25,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:25,843 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:25,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:25,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:25,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 01:55:25,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:25,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-22 01:55:25,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:25,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:25,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:55:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:26,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:26,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:26,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:26,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:26,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:26,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:26,229 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:55:26,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:55:26,370 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 16 treesize of output 12 [2022-11-22 01:55:26,421 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:26,421 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:55:26,487 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:26,488 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:55:26,573 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:26,573 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:26,656 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:26,656 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:26,712 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:27,108 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '350#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:27,108 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:27,108 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:27,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-22 01:55:27,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063659732] [2022-11-22 01:55:27,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:27,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:55:27,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:27,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:55:27,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:55:27,110 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2022-11-22 01:55:27,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:27,207 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-11-22 01:55:27,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:55:27,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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 9 [2022-11-22 01:55:27,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:27,209 INFO L225 Difference]: With dead ends: 14 [2022-11-22 01:55:27,209 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 01:55:27,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:55:27,211 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:27,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:55:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 01:55:27,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-22 01:55:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 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) [2022-11-22 01:55:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-22 01:55:27,214 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2022-11-22 01:55:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:27,215 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-22 01:55:27,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 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) [2022-11-22 01:55:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-22 01:55:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:55:27,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:27,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:27,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:27,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:27,422 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:27,423 INFO L85 PathProgramCache]: Analyzing trace with hash -871956407, now seen corresponding path program 4 times [2022-11-22 01:55:27,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:27,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791080840] [2022-11-22 01:55:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:27,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:27,437 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:27,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097055711] [2022-11-22 01:55:27,437 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:55:27,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:27,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:27,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:27,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:55:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:27,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-22 01:55:27,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:27,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 01:55:27,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:55:27,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-11-22 01:55:27,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:27,620 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 28 treesize of output 30 [2022-11-22 01:55:27,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 96 treesize of output 102 [2022-11-22 01:55:27,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-11-22 01:55:27,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2022-11-22 01:55:27,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2022-11-22 01:55:27,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 32 [2022-11-22 01:55:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:27,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:27,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:55:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:28,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:28,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791080840] [2022-11-22 01:55:28,491 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:28,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097055711] [2022-11-22 01:55:28,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097055711] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:28,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [57763650] [2022-11-22 01:55:28,493 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:28,496 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:28,497 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:28,497 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:28,497 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:28,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,543 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:55:28,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:55:28,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,675 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:28,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:28,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-22 01:55:28,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2022-11-22 01:55:28,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:28,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:28,985 INFO L321 Elim1Store]: treesize reduction 214, result has 11.9 percent of original size [2022-11-22 01:55:28,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 434 treesize of output 423 [2022-11-22 01:55:29,081 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 16 treesize of output 12 [2022-11-22 01:55:29,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:29,145 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:29,145 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:55:29,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:29,233 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:29,233 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:55:29,491 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:29,491 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:29,884 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:29,884 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:29,932 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:30,415 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '469#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:30,415 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:30,415 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:30,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-11-22 01:55:30,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946186766] [2022-11-22 01:55:30,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:30,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:55:30,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:30,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:55:30,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=326, Unknown=1, NotChecked=0, Total=380 [2022-11-22 01:55:30,417 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 16 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-11-22 01:55:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:30,913 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-22 01:55:30,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:55:30,914 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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 [2022-11-22 01:55:30,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:30,914 INFO L225 Difference]: With dead ends: 18 [2022-11-22 01:55:30,915 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 01:55:30,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=72, Invalid=433, Unknown=1, NotChecked=0, Total=506 [2022-11-22 01:55:30,916 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:30,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:55:30,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 01:55:30,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-11-22 01:55:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-11-22 01:55:30,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-22 01:55:30,922 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-11-22 01:55:30,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:30,922 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-22 01:55:30,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-11-22 01:55:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-22 01:55:30,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:55:30,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:30,923 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:30,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:31,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:31,139 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:31,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1260736258, now seen corresponding path program 5 times [2022-11-22 01:55:31,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:31,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344212787] [2022-11-22 01:55:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:31,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:31,166 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:31,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001681887] [2022-11-22 01:55:31,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:55:31,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:31,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:31,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:31,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:55:31,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:55:31,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:55:31,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:55:31,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:31,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:31,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:31,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344212787] [2022-11-22 01:55:31,388 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:31,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001681887] [2022-11-22 01:55:31,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001681887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:31,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [28859085] [2022-11-22 01:55:31,391 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:31,391 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:31,391 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:31,391 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:31,392 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:31,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,482 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:55:31,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:55:31,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,586 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:31,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:31,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 01:55:31,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:55:31,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:31,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:31,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:31,874 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:55:31,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:55:32,030 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 16 treesize of output 12 [2022-11-22 01:55:32,077 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:32,078 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:55:32,305 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:32,306 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:55:32,383 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:32,384 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:32,454 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:32,455 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:32,513 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:32,958 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '599#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:32,958 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:32,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:32,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-22 01:55:32,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491130866] [2022-11-22 01:55:32,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:32,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:55:32,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:32,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:55:32,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:55:32,960 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2022-11-22 01:55:33,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:33,054 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-22 01:55:33,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:55:33,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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 [2022-11-22 01:55:33,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:33,055 INFO L225 Difference]: With dead ends: 23 [2022-11-22 01:55:33,055 INFO L226 Difference]: Without dead ends: 16 [2022-11-22 01:55:33,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:55:33,056 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:33,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:55:33,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-22 01:55:33,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2022-11-22 01:55:33,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 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) [2022-11-22 01:55:33,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-22 01:55:33,062 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 11 [2022-11-22 01:55:33,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:33,062 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-22 01:55:33,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 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) [2022-11-22 01:55:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-22 01:55:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:55:33,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:33,063 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:33,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:33,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 01:55:33,264 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:33,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:33,264 INFO L85 PathProgramCache]: Analyzing trace with hash 973526812, now seen corresponding path program 6 times [2022-11-22 01:55:33,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:33,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425895299] [2022-11-22 01:55:33,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:33,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:33,276 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:33,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976154294] [2022-11-22 01:55:33,277 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:55:33,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:33,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:33,278 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:33,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:55:33,389 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:55:33,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:55:33,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 01:55:33,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:33,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:33,496 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:33,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:33,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425895299] [2022-11-22 01:55:33,497 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:33,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976154294] [2022-11-22 01:55:33,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976154294] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:33,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1762182999] [2022-11-22 01:55:33,499 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:33,499 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:33,499 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:33,499 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:33,500 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:33,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,580 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:55:33,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:55:33,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,676 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:33,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:33,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 01:55:33,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2022-11-22 01:55:33,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:33,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:33,913 INFO L321 Elim1Store]: treesize reduction 214, result has 11.9 percent of original size [2022-11-22 01:55:33,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 434 treesize of output 423 [2022-11-22 01:55:34,041 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 16 treesize of output 12 [2022-11-22 01:55:34,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:34,110 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:55:34,110 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 01:55:34,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:34,300 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:55:34,301 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 01:55:34,437 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:34,437 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:34,604 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:34,604 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:34,629 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:35,008 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '737#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:35,009 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:35,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:35,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-22 01:55:35,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784759246] [2022-11-22 01:55:35,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:35,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:55:35,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:35,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:55:35,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:55:35,010 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-11-22 01:55:35,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:35,132 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2022-11-22 01:55:35,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:55:35,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 [2022-11-22 01:55:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:35,133 INFO L225 Difference]: With dead ends: 16 [2022-11-22 01:55:35,133 INFO L226 Difference]: Without dead ends: 13 [2022-11-22 01:55:35,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:55:35,134 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:35,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 14 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:55:35,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-22 01:55:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-22 01:55:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-22 01:55:35,140 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2022-11-22 01:55:35,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:35,140 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-22 01:55:35,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-11-22 01:55:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-22 01:55:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:55:35,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:35,141 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:35,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-22 01:55:35,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:35,343 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:35,343 INFO L85 PathProgramCache]: Analyzing trace with hash 114668683, now seen corresponding path program 7 times [2022-11-22 01:55:35,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:35,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878176044] [2022-11-22 01:55:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:35,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:35,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:35,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261362900] [2022-11-22 01:55:35,358 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:55:35,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:35,360 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:35,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:55:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:35,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-22 01:55:35,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:35,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:55:35,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 01:55:35,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:55:35,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:35,524 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 31 treesize of output 33 [2022-11-22 01:55:35,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:35,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:35,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:55:35,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 105 treesize of output 109 [2022-11-22 01:55:35,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-11-22 01:55:35,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:35,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:35,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2022-11-22 01:55:35,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 47 [2022-11-22 01:55:35,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 35 [2022-11-22 01:55:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:35,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:36,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:55:36,100 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse1 (* c_~N~0 3)) (.cse5 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse6 (= 3 .cse3))) (and (or (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (and (= .cse0 3) (= .cse1 (+ .cse2 .cse0 .cse3)))))) (not .cse6)) (or (and (forall ((v_ArrVal_320 (Array Int Int))) (= (+ (select v_ArrVal_320 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5)) .cse1)) (forall ((v_ArrVal_320 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5)))) .cse6))))) is different from false [2022-11-22 01:55:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-22 01:55:44,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:44,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878176044] [2022-11-22 01:55:44,941 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:44,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261362900] [2022-11-22 01:55:44,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261362900] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:44,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [615717854] [2022-11-22 01:55:44,943 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:44,943 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:44,943 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:44,944 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:44,944 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,122 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:55:45,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:55:45,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,301 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:45,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:45,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 01:55:45,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:55:45,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:45,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:45,696 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:55:45,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:55:45,868 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 16 treesize of output 12 [2022-11-22 01:55:45,940 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:45,940 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:55:46,016 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:55:46,017 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:55:46,150 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:46,150 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:46,285 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:46,285 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:46,323 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:47,455 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '882#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:47,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:47,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:47,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-11-22 01:55:47,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424413334] [2022-11-22 01:55:47,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:47,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-22 01:55:47,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:47,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-22 01:55:47,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=440, Unknown=6, NotChecked=42, Total=552 [2022-11-22 01:55:47,457 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 20 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:49,191 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-11-22 01:55:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:55:49,192 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 01:55:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:49,193 INFO L225 Difference]: With dead ends: 25 [2022-11-22 01:55:49,193 INFO L226 Difference]: Without dead ends: 22 [2022-11-22 01:55:49,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=83, Invalid=565, Unknown=6, NotChecked=48, Total=702 [2022-11-22 01:55:49,194 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:49,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 27 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 158 Invalid, 0 Unknown, 14 Unchecked, 1.0s Time] [2022-11-22 01:55:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-22 01:55:49,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2022-11-22 01:55:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 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) [2022-11-22 01:55:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-22 01:55:49,202 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-22 01:55:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:49,203 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-22 01:55:49,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-22 01:55:49,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:55:49,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:49,204 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:49,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:49,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:49,415 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:49,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:49,415 INFO L85 PathProgramCache]: Analyzing trace with hash -740129540, now seen corresponding path program 8 times [2022-11-22 01:55:49,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:49,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343967023] [2022-11-22 01:55:49,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:49,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:49,430 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:49,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852337428] [2022-11-22 01:55:49,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:55:49,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:49,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:49,457 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:49,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:55:49,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:55:49,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:55:49,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 01:55:49,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:49,697 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:49,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:49,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:49,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343967023] [2022-11-22 01:55:49,830 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:49,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852337428] [2022-11-22 01:55:49,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852337428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:49,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1932506921] [2022-11-22 01:55:49,832 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:49,832 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:49,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:49,833 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:49,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:49,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:49,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:49,996 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:49,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:50,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 01:55:50,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-22 01:55:50,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2022-11-22 01:55:50,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:50,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:50,355 INFO L321 Elim1Store]: treesize reduction 214, result has 11.9 percent of original size [2022-11-22 01:55:50,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 434 treesize of output 423 [2022-11-22 01:55:50,470 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 16 treesize of output 12 [2022-11-22 01:55:50,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:50,585 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:55:50,585 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 01:55:50,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:50,675 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:55:50,675 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 01:55:50,820 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:50,821 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:50,947 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:50,948 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:50,986 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:51,666 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1043#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:51,666 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:51,666 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:51,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-22 01:55:51,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667577838] [2022-11-22 01:55:51,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:51,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:55:51,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:51,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:55:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:55:51,668 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2022-11-22 01:55:51,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:51,922 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-11-22 01:55:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:55:51,923 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 [2022-11-22 01:55:51,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:51,924 INFO L225 Difference]: With dead ends: 26 [2022-11-22 01:55:51,924 INFO L226 Difference]: Without dead ends: 18 [2022-11-22 01:55:51,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:55:51,925 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:51,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:55:51,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-22 01:55:51,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2022-11-22 01:55:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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) [2022-11-22 01:55:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-22 01:55:51,934 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 13 [2022-11-22 01:55:51,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:51,934 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-22 01:55:51,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2022-11-22 01:55:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-22 01:55:51,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:55:51,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:51,935 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:51,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:55:52,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:52,135 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:52,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:52,136 INFO L85 PathProgramCache]: Analyzing trace with hash -197451106, now seen corresponding path program 9 times [2022-11-22 01:55:52,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:52,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539790035] [2022-11-22 01:55:52,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:52,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:52,149 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:52,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369945296] [2022-11-22 01:55:52,149 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:55:52,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:52,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:52,151 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:52,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:55:52,293 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:55:52,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:55:52,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 01:55:52,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:52,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:52,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:52,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539790035] [2022-11-22 01:55:52,587 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:55:52,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369945296] [2022-11-22 01:55:52,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369945296] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:52,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1867446320] [2022-11-22 01:55:52,590 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:55:52,590 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:52,590 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:52,590 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:52,590 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:52,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:52,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:52,731 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:55:52,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:55:52,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:52,790 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:55:52,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:55:52,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:52,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:52,964 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:55:52,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:55:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:55:53,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:53,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:53,273 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:55:53,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:55:53,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-22 01:55:53,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:53,505 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:55:53,506 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 01:55:53,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:53,602 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:55:53,603 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 01:55:53,723 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:53,724 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:55:53,842 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:55:53,842 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:55:53,885 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:55:54,575 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1208#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:55:54,575 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:55:54,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:55:54,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-22 01:55:54,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280842245] [2022-11-22 01:55:54,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:55:54,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-22 01:55:54,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:54,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-22 01:55:54,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:55:54,577 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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) [2022-11-22 01:55:54,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:54,834 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-22 01:55:54,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:55:54,834 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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 [2022-11-22 01:55:54,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:54,835 INFO L225 Difference]: With dead ends: 18 [2022-11-22 01:55:54,835 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 01:55:54,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2022-11-22 01:55:54,836 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:54,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:55:54,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 01:55:54,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 01:55:54,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:54,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-22 01:55:54,844 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2022-11-22 01:55:54,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:54,845 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-22 01:55:54,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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) [2022-11-22 01:55:54,845 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-22 01:55:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:55:54,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:54,846 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:54,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-22 01:55:55,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 01:55:55,052 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:55,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:55,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1825908407, now seen corresponding path program 10 times [2022-11-22 01:55:55,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:55,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903896641] [2022-11-22 01:55:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:55,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:55,080 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:55:55,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513361339] [2022-11-22 01:55:55,080 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:55:55,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:55,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:55,084 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:55,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:55:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:55,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-22 01:55:55,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:55,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:55:55,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 01:55:55,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-11-22 01:55:55,311 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 36 treesize of output 38 [2022-11-22 01:55:55,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:55,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:55,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:55:55,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:55,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:55,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:55,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 01:55:55,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:55,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:55,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:55,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2022-11-22 01:55:55,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 118 treesize of output 118 [2022-11-22 01:55:55,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-22 01:55:55,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:56,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 117 treesize of output 115 [2022-11-22 01:55:56,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2022-11-22 01:55:56,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 56 [2022-11-22 01:55:56,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2022-11-22 01:55:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:56,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:56,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:55:56,660 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse5 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse1 (* c_~N~0 3)) (.cse2 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse0 (= 3 .cse5))) (and (or .cse0 (and (forall ((v_ArrVal_516 (Array Int Int))) (= .cse1 (+ (select v_ArrVal_516 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)))) (forall ((v_ArrVal_516 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))))) (or (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse4 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (and (= .cse3 3) (= .cse1 (+ .cse4 .cse3 .cse5)))))) (not .cse0)))))) is different from false [2022-11-22 01:55:57,416 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse14 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse7 (* c_~N~0 3)) (.cse9 (+ .cse14 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse0 (= 3 .cse6)) (.cse1 (and (forall ((v_ArrVal_516 (Array Int Int))) (= .cse7 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9) (select v_ArrVal_516 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) (forall ((v_ArrVal_516 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9) 3)))) (.cse10 (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (or (not .cse0) (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse4 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10))) (let ((.cse2 (= .cse5 3))) (and (or .cse1 .cse2) (or (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (and (= 3 .cse3) (= (+ .cse4 .cse5 .cse6 .cse3) .cse7))) (not .cse2)))))))) (or .cse0 (and (forall ((v_ArrVal_514 (Array Int Int))) (let ((.cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10))) (or (not (= 3 .cse11)) (= (let ((.cse12 (select v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse12 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9) .cse11)) .cse7)))) (forall ((v_ArrVal_514 (Array Int Int))) (let ((.cse13 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10))) (or (not (= 3 .cse13)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9) 3)))) (or .cse1 (forall ((v_ArrVal_514 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10)))))))))) is different from false [2022-11-22 01:56:00,134 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse22 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse12 (* c_~N~0 3)) (.cse4 (+ .cse22 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse18 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|))) (.cse7 (and (forall ((v_ArrVal_516 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (forall ((v_ArrVal_516 (Array Int Int))) (= .cse12 (+ (select v_ArrVal_516 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4)))))) (.cse5 (+ .cse22 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse13 (and (or .cse7 (forall ((v_ArrVal_514 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5)))) (forall ((v_ArrVal_514 (Array Int Int))) (let ((.cse23 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (or (not (= 3 .cse23)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) 3)))) (forall ((v_ArrVal_514 (Array Int Int))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (or (= .cse12 (let ((.cse24 (select v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) .cse24 .cse25))) (not (= 3 .cse25))))))) (.cse6 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse0 (= 3 .cse18))) (and (or .cse0 (and (forall ((v_ArrVal_511 (Array Int Int))) (let ((.cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_511) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6)) (.cse3 (select v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse1 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) 3) (not (= .cse1 3)) (not (= 3 .cse2)))))) (or .cse7 (forall ((v_ArrVal_511 (Array Int Int))) (let ((.cse8 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_511) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 (select v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5) 3) (not (= 3 .cse8)))))) (forall ((v_ArrVal_511 (Array Int Int))) (let ((.cse10 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_511) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6)) (.cse11 (select v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse9 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse10 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (or (= (+ .cse9 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse10 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4) .cse10 .cse11) .cse12) (not (= .cse9 3)) (not (= 3 .cse10)))))) (or .cse13 (forall ((v_ArrVal_511 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_511) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6)))))) (or (let ((.cse20 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse16 (select .cse20 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse17 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse16 .cse18))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6))) (let ((.cse21 (= .cse17 3))) (and (or (let ((.cse19 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse16 .cse17 .cse18))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (let ((.cse14 (= 3 .cse19))) (and (or .cse14 .cse7) (or (not .cse14) (let ((.cse15 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse16 .cse17 .cse18 .cse19))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse4))) (and (= .cse15 3) (= (+ .cse15 .cse16 .cse17 .cse18 .cse19) .cse12))))))) (not .cse21)) (or .cse13 .cse21)))))) (not .cse0))))))) is different from false [2022-11-22 01:56:51,487 WARN L233 SmtUtils]: Spent 49.77s on a formula simplification. DAG size of input: 120 DAG size of output: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:56:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2022-11-22 01:56:54,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:54,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903896641] [2022-11-22 01:56:54,412 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:56:54,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513361339] [2022-11-22 01:56:54,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513361339] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:56:54,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [409770043] [2022-11-22 01:56:54,414 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:56:54,414 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:56:54,414 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:56:54,414 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:56:54,414 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:56:54,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:54,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:54,911 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:56:54,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:56:54,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,068 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:56:55,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:56:55,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,681 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:56:55,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:56:55,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:56:55,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:55,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:56,298 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:56:56,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:56:56,416 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 16 treesize of output 12 [2022-11-22 01:56:56,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:56,675 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:56:56,675 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 01:56:56,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:56,915 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:56:56,915 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 01:56:57,361 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:56:57,361 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:56:57,783 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:56:57,783 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:56:57,827 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:57:01,610 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1379#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:57:01,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:57:01,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:57:01,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-11-22 01:57:01,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17870509] [2022-11-22 01:57:01,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:57:01,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 01:57:01,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:01,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 01:57:01,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=535, Unknown=3, NotChecked=144, Total=756 [2022-11-22 01:57:01,613 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 24 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 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) [2022-11-22 01:57:06,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:06,786 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-22 01:57:06,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:57:06,787 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 01:57:06,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:06,788 INFO L225 Difference]: With dead ends: 28 [2022-11-22 01:57:06,788 INFO L226 Difference]: Without dead ends: 25 [2022-11-22 01:57:06,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 9 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 62.9s TimeCoverageRelationStatistics Valid=93, Invalid=672, Unknown=3, NotChecked=162, Total=930 [2022-11-22 01:57:06,789 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:06,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 186 Invalid, 0 Unknown, 52 Unchecked, 2.7s Time] [2022-11-22 01:57:06,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-22 01:57:06,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2022-11-22 01:57:06,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-22 01:57:06,798 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-11-22 01:57:06,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:06,799 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-22 01:57:06,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 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) [2022-11-22 01:57:06,799 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-22 01:57:06,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:57:06,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:06,800 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:06,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:07,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 01:57:07,001 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:07,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:07,001 INFO L85 PathProgramCache]: Analyzing trace with hash -768477186, now seen corresponding path program 11 times [2022-11-22 01:57:07,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:07,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52645090] [2022-11-22 01:57:07,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:07,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:07,021 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:57:07,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407582988] [2022-11-22 01:57:07,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:57:07,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:07,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:57:07,023 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:57:07,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:57:07,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-22 01:57:07,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:57:07,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:57:07,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:08,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:57:08,774 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:08,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:08,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52645090] [2022-11-22 01:57:08,774 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:57:08,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407582988] [2022-11-22 01:57:08,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407582988] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:57:08,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1784161045] [2022-11-22 01:57:08,776 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:57:08,777 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:57:08,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:57:08,777 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:57:08,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:57:08,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:08,934 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:57:08,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:57:08,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:08,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,568 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:57:09,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:57:09,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-22 01:57:09,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:57:09,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:09,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:09,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:10,226 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:57:10,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:57:10,392 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 16 treesize of output 12 [2022-11-22 01:57:10,648 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:57:10,649 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:57:10,891 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:57:10,892 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:57:11,285 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:57:11,285 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:57:11,664 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:57:11,664 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:57:11,716 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:57:14,685 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1567#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:57:14,685 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:57:14,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:57:14,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2022-11-22 01:57:14,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291033445] [2022-11-22 01:57:14,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:57:14,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 01:57:14,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 01:57:14,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:57:14,687 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:15,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:15,685 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-11-22 01:57:15,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:57:15,686 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:57:15,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:15,687 INFO L225 Difference]: With dead ends: 29 [2022-11-22 01:57:15,687 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 01:57:15,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 11 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2022-11-22 01:57:15,693 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:15,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 12 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:57:15,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 01:57:15,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2022-11-22 01:57:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 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) [2022-11-22 01:57:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-22 01:57:15,705 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 15 [2022-11-22 01:57:15,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:15,705 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-22 01:57:15,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-22 01:57:15,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:57:15,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:15,706 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:15,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:15,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:15,906 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1125314916, now seen corresponding path program 12 times [2022-11-22 01:57:15,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:15,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814793823] [2022-11-22 01:57:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:15,924 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:57:15,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102270052] [2022-11-22 01:57:15,924 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:57:15,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:15,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:57:15,926 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:57:15,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 01:57:16,078 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:57:16,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:57:16,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:57:16,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:17,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:57:17,788 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:17,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:17,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814793823] [2022-11-22 01:57:17,789 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:57:17,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102270052] [2022-11-22 01:57:17,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102270052] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:57:17,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1802926132] [2022-11-22 01:57:17,791 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:57:17,791 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:57:17,792 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:57:17,792 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:57:17,792 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:57:17,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:17,955 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:57:17,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:57:18,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:18,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:18,461 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:57:18,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:57:18,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:18,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:18,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,075 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:57:19,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:57:19,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2022-11-22 01:57:19,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:19,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:19,695 INFO L321 Elim1Store]: treesize reduction 214, result has 11.9 percent of original size [2022-11-22 01:57:19,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 434 treesize of output 423 [2022-11-22 01:57:19,791 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 16 treesize of output 12 [2022-11-22 01:57:19,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:20,104 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:57:20,104 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:57:20,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:20,508 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:57:20,508 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:57:20,944 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:57:20,944 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:57:21,304 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:57:21,305 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:57:21,375 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:57:23,640 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1759#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:57:23,640 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:57:23,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:57:23,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-11-22 01:57:23,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952855035] [2022-11-22 01:57:23,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:57:23,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 01:57:23,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 01:57:23,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:57:23,642 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:24,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:24,875 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-22 01:57:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:57:24,875 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:57:24,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:24,876 INFO L225 Difference]: With dead ends: 20 [2022-11-22 01:57:24,876 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 01:57:24,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2022-11-22 01:57:24,877 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:24,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 8 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:57:24,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 01:57:24,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-22 01:57:24,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-11-22 01:57:24,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-22 01:57:24,888 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2022-11-22 01:57:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:24,888 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-22 01:57:24,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:24,889 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-22 01:57:24,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:57:24,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:24,889 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:24,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:25,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 01:57:25,095 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:57:25,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:25,096 INFO L85 PathProgramCache]: Analyzing trace with hash -524915445, now seen corresponding path program 13 times [2022-11-22 01:57:25,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:25,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383020148] [2022-11-22 01:57:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:25,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:25,110 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:57:25,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048081057] [2022-11-22 01:57:25,110 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:57:25,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:25,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:57:25,112 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:57:25,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 01:57:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:25,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 81 conjunts are in the unsatisfiable core [2022-11-22 01:57:25,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:25,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:57:25,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 01:57:25,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-11-22 01:57:25,626 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 36 treesize of output 38 [2022-11-22 01:57:25,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:25,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:25,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:57:26,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 57 [2022-11-22 01:57:26,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,440 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 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2022-11-22 01:57:27,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 123 treesize of output 123 [2022-11-22 01:57:27,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-11-22 01:57:27,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:27,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 132 treesize of output 130 [2022-11-22 01:57:27,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2022-11-22 01:57:27,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-22 01:57:28,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 143 treesize of output 139 [2022-11-22 01:57:28,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 42 [2022-11-22 01:57:28,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:28,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 153 treesize of output 147 [2022-11-22 01:57:28,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 52 [2022-11-22 01:57:29,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:29,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 120 treesize of output 112 [2022-11-22 01:57:29,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2022-11-22 01:57:29,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 44 [2022-11-22 01:57:29,850 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:29,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:57:30,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:57:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:45,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:45,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383020148] [2022-11-22 01:57:45,385 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:57:45,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048081057] [2022-11-22 01:57:45,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048081057] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:57:45,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1387041062] [2022-11-22 01:57:45,387 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:57:45,387 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:57:45,387 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:57:45,387 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:57:45,387 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:57:45,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:45,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:45,870 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:57:45,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:57:45,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,011 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:57:46,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:57:46,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,574 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:57:46,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:57:46,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2022-11-22 01:57:46,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:46,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:46,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:47,135 INFO L321 Elim1Store]: treesize reduction 214, result has 11.9 percent of original size [2022-11-22 01:57:47,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 434 treesize of output 423 [2022-11-22 01:57:47,249 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 16 treesize of output 12 [2022-11-22 01:57:47,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:47,490 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:57:47,490 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 01:57:47,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:47,727 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:57:47,728 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 01:57:48,103 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:57:48,103 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:57:48,452 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:57:48,452 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:57:48,512 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:57:51,740 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1956#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:57:51,740 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:57:51,740 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:57:51,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2022-11-22 01:57:51,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962287483] [2022-11-22 01:57:51,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:57:51,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-22 01:57:51,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:51,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-22 01:57:51,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=900, Unknown=3, NotChecked=0, Total=992 [2022-11-22 01:57:51,742 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 28 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 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) [2022-11-22 01:58:03,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:03,528 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-22 01:58:03,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:58:03,529 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 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 16 [2022-11-22 01:58:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:03,530 INFO L225 Difference]: With dead ends: 31 [2022-11-22 01:58:03,530 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 01:58:03,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=108, Invalid=1079, Unknown=3, NotChecked=0, Total=1190 [2022-11-22 01:58:03,531 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:03,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 45 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-22 01:58:03,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 01:58:03,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 19. [2022-11-22 01:58:03,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-22 01:58:03,545 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2022-11-22 01:58:03,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:03,545 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-22 01:58:03,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 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) [2022-11-22 01:58:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-22 01:58:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:58:03,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:03,546 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:03,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:03,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 01:58:03,747 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:58:03,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:03,747 INFO L85 PathProgramCache]: Analyzing trace with hash 907598972, now seen corresponding path program 14 times [2022-11-22 01:58:03,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:03,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551861492] [2022-11-22 01:58:03,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:03,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:03,763 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:58:03,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202587742] [2022-11-22 01:58:03,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:58:03,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:58:03,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:03,764 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:58:03,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 01:58:03,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-22 01:58:03,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:58:03,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-22 01:58:03,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:05,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:58:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:05,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:05,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551861492] [2022-11-22 01:58:05,943 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:58:05,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202587742] [2022-11-22 01:58:05,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202587742] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:58:05,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [542138566] [2022-11-22 01:58:05,945 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:58:05,945 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:58:05,945 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:58:05,945 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:58:05,946 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:58:05,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:05,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,510 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:58:06,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:58:06,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 01:58:06,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-22 01:58:06,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:58:06,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:06,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:06,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:07,175 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:58:07,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:58:07,320 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 16 treesize of output 12 [2022-11-22 01:58:07,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:07,544 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:58:07,545 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 01:58:07,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:07,774 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:58:07,774 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 01:58:08,212 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:58:08,213 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:58:08,734 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:58:08,734 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:58:08,772 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:58:11,866 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2166#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:58:11,866 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:58:11,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:58:11,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2022-11-22 01:58:11,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373021287] [2022-11-22 01:58:11,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:58:11,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-22 01:58:11,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:11,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-22 01:58:11,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:58:11,868 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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) [2022-11-22 01:58:13,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:13,033 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-11-22 01:58:13,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:58:13,034 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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 17 [2022-11-22 01:58:13,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:13,034 INFO L225 Difference]: With dead ends: 32 [2022-11-22 01:58:13,034 INFO L226 Difference]: Without dead ends: 22 [2022-11-22 01:58:13,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 13 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:58:13,035 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:13,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:58:13,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-22 01:58:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-11-22 01:58:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-22 01:58:13,061 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 17 [2022-11-22 01:58:13,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:13,061 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-22 01:58:13,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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) [2022-11-22 01:58:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-22 01:58:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-22 01:58:13,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:13,061 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:13,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-22 01:58:13,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:58:13,262 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:58:13,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:13,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1564436066, now seen corresponding path program 15 times [2022-11-22 01:58:13,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:13,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482664213] [2022-11-22 01:58:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:13,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:13,276 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:58:13,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57266129] [2022-11-22 01:58:13,277 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:58:13,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:58:13,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:13,278 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:58:13,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-22 01:58:13,543 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:58:13,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:58:13,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-22 01:58:13,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:14,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:58:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:15,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:15,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482664213] [2022-11-22 01:58:15,544 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:58:15,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57266129] [2022-11-22 01:58:15,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57266129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:58:15,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1316353851] [2022-11-22 01:58:15,546 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:58:15,546 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:58:15,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:58:15,547 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:58:15,547 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:58:15,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:15,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,015 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:58:16,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:58:16,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,554 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:58:16,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:58:16,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 01:58:16,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:58:16,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:16,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:16,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:17,203 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:58:17,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:58:17,304 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 16 treesize of output 12 [2022-11-22 01:58:17,534 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:58:17,534 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:58:17,762 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:58:17,763 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:58:18,117 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:58:18,117 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:58:18,465 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:58:18,465 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:58:18,539 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:58:21,004 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2385#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:58:21,004 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:58:21,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:58:21,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2022-11-22 01:58:21,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509336703] [2022-11-22 01:58:21,004 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:58:21,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-22 01:58:21,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-22 01:58:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2022-11-22 01:58:21,005 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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) [2022-11-22 01:58:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:22,671 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-11-22 01:58:22,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:58:22,671 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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 17 [2022-11-22 01:58:22,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:22,672 INFO L225 Difference]: With dead ends: 22 [2022-11-22 01:58:22,672 INFO L226 Difference]: Without dead ends: 19 [2022-11-22 01:58:22,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 13 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=226, Invalid=830, Unknown=0, NotChecked=0, Total=1056 [2022-11-22 01:58:22,673 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:22,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 16 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:58:22,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-22 01:58:22,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-22 01:58:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-22 01:58:22,684 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17 [2022-11-22 01:58:22,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:22,684 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-22 01:58:22,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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) [2022-11-22 01:58:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-22 01:58:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 01:58:22,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:22,685 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:22,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-22 01:58:22,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-22 01:58:22,886 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:58:22,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:22,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1252769207, now seen corresponding path program 16 times [2022-11-22 01:58:22,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:22,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400497745] [2022-11-22 01:58:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:22,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:22,901 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:58:22,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799816593] [2022-11-22 01:58:22,902 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 01:58:22,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:58:22,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:22,903 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:58:22,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-22 01:58:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:23,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 93 conjunts are in the unsatisfiable core [2022-11-22 01:58:23,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:23,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:58:23,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 01:58:23,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:58:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,415 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 28 treesize of output 30 [2022-11-22 01:58:23,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2022-11-22 01:58:23,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 60 [2022-11-22 01:58:24,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,213 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 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 75 [2022-11-22 01:58:24,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2022-11-22 01:58:25,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:25,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:25,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:25,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:25,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:25,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 83 [2022-11-22 01:58:25,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 136 treesize of output 132 [2022-11-22 01:58:25,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-22 01:58:25,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-22 01:58:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:26,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:26,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:26,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:26,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:26,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 85 [2022-11-22 01:58:26,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 138 treesize of output 134 [2022-11-22 01:58:26,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2022-11-22 01:58:27,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:27,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 144 treesize of output 136 [2022-11-22 01:58:27,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-22 01:58:27,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-22 01:58:27,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 77 [2022-11-22 01:58:28,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 47 [2022-11-22 01:58:28,555 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:28,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:58:29,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 01:58:29,470 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse6 (= 3 .cse3)) (.cse1 (* c_~N~0 3)) (.cse5 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (or (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (and (= .cse0 3) (= .cse1 (+ .cse2 .cse0 .cse3)))))) (not .cse6)) (or .cse6 (and (forall ((v_ArrVal_1033 (Array Int Int))) (= .cse1 (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5)))) (forall ((v_ArrVal_1033 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))))))))) is different from false [2022-11-22 01:58:45,870 WARN L233 SmtUtils]: Spent 7.81s on a formula simplification. DAG size of input: 76 DAG size of output: 37 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:59:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2022-11-22 01:59:17,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:17,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400497745] [2022-11-22 01:59:17,364 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:59:17,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799816593] [2022-11-22 01:59:17,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799816593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:59:17,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2127940187] [2022-11-22 01:59:17,366 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:59:17,366 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:59:17,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:59:17,367 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:59:17,367 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:59:17,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:17,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:17,866 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:59:17,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:59:17,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:17,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:17,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,414 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:59:18,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:59:18,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 01:59:18,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:59:18,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:18,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:18,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:19,053 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:59:19,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:59:19,144 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 16 treesize of output 12 [2022-11-22 01:59:19,361 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:59:19,362 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2022-11-22 01:59:19,602 INFO L321 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-22 01:59:19,602 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2022-11-22 01:59:19,951 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:59:19,951 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:59:20,494 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:59:20,494 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:59:20,557 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:59:27,089 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2608#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:59:27,089 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:59:27,089 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:59:27,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2022-11-22 01:59:27,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682661314] [2022-11-22 01:59:27,089 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:59:27,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-22 01:59:27,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:27,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-22 01:59:27,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1085, Unknown=9, NotChecked=66, Total=1260 [2022-11-22 01:59:27,091 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 32 states, 32 states have (on average 1.0625) internal successors, (34), 32 states have internal predecessors, (34), 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) [2022-11-22 01:59:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:46,330 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-11-22 01:59:46,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 01:59:46,332 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.0625) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-22 01:59:46,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:46,332 INFO L225 Difference]: With dead ends: 34 [2022-11-22 01:59:46,332 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 01:59:46,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 11 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 61.4s TimeCoverageRelationStatistics Valid=119, Invalid=1282, Unknown=9, NotChecked=72, Total=1482 [2022-11-22 01:59:46,334 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:46,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 44 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 378 Invalid, 0 Unknown, 23 Unchecked, 10.9s Time] [2022-11-22 01:59:46,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 01:59:46,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2022-11-22 01:59:46,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:59:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-22 01:59:46,365 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2022-11-22 01:59:46,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:46,366 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-22 01:59:46,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.0625) internal successors, (34), 32 states have internal predecessors, (34), 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) [2022-11-22 01:59:46,366 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-22 01:59:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:59:46,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:46,367 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:46,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:46,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-22 01:59:46,575 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:46,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash -181031170, now seen corresponding path program 17 times [2022-11-22 01:59:46,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:46,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765185447] [2022-11-22 01:59:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:46,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:46,591 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:59:46,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789867227] [2022-11-22 01:59:46,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:59:46,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:59:46,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:59:46,592 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:59:46,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-22 01:59:47,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-22 01:59:47,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:59:47,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-22 01:59:47,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:48,334 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:48,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:59:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:49,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:49,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765185447] [2022-11-22 01:59:49,514 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:59:49,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789867227] [2022-11-22 01:59:49,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789867227] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:59:49,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1741706357] [2022-11-22 01:59:49,516 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:59:49,516 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:59:49,516 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:59:49,517 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:59:49,517 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:59:49,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:49,670 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:59:49,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2022-11-22 01:59:49,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:49,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,138 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 01:59:50,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 01:59:50,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,698 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 01:59:50,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 01:59:50,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 01:59:50,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:50,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:50,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:51,309 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 01:59:51,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 01:59:51,403 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 16 treesize of output 12 [2022-11-22 01:59:51,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:51,626 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:59:51,626 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 01:59:51,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:51,859 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 01:59:51,859 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 01:59:52,249 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:59:52,249 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 01:59:52,611 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 01:59:52,612 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 01:59:52,651 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:59:56,193 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2844#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 01:59:56,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:59:56,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:59:56,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23 [2022-11-22 01:59:56,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686624308] [2022-11-22 01:59:56,194 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:59:56,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-22 01:59:56,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:56,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-22 01:59:56,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2022-11-22 01:59:56,195 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 23 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 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) [2022-11-22 01:59:57,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:57,648 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-22 01:59:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 01:59:57,649 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-22 01:59:57,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:57,650 INFO L225 Difference]: With dead ends: 35 [2022-11-22 01:59:57,650 INFO L226 Difference]: Without dead ends: 24 [2022-11-22 01:59:57,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 15 SyntacticMatches, 15 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2022-11-22 01:59:57,651 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:57,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:59:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-22 01:59:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2022-11-22 01:59:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:59:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-22 01:59:57,665 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 19 [2022-11-22 01:59:57,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:57,665 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-22 01:59:57,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 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) [2022-11-22 01:59:57,665 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-22 01:59:57,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:59:57,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:57,666 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:57,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:57,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:59:57,871 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:57,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:57,871 INFO L85 PathProgramCache]: Analyzing trace with hash 495293980, now seen corresponding path program 18 times [2022-11-22 01:59:57,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:57,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366558237] [2022-11-22 01:59:57,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:57,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:57,887 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:59:57,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736973109] [2022-11-22 01:59:57,887 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:59:57,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:59:57,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:59:57,889 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:59:57,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-22 01:59:58,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:59:58,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:59:58,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-22 01:59:58,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:59,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:00:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:00,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:00,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366558237] [2022-11-22 02:00:00,907 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:00:00,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736973109] [2022-11-22 02:00:00,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736973109] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:00:00,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1145715786] [2022-11-22 02:00:00,911 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 02:00:00,911 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:00:00,911 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:00:00,911 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:00:00,911 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:00:00,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:00,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:00,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,472 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 02:00:01,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 02:00:01,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-22 02:00:01,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 02:00:01,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2022-11-22 02:00:01,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:01,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:01,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:02,132 INFO L321 Elim1Store]: treesize reduction 214, result has 11.9 percent of original size [2022-11-22 02:00:02,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 434 treesize of output 423 [2022-11-22 02:00:02,216 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 16 treesize of output 12 [2022-11-22 02:00:02,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:02,456 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 02:00:02,456 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 02:00:02,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:02,699 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 02:00:02,700 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 02:00:03,075 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 02:00:03,076 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 02:00:03,426 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 02:00:03,427 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 02:00:03,474 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:00:05,711 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3090#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 02:00:05,711 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:00:05,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:00:05,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2022-11-22 02:00:05,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7810007] [2022-11-22 02:00:05,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 02:00:05,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-22 02:00:05,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:05,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-22 02:00:05,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2022-11-22 02:00:05,713 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 24 states, 24 states have (on average 1.125) 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) [2022-11-22 02:00:07,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:07,351 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-11-22 02:00:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 02:00:07,351 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.125) 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) Word has length 19 [2022-11-22 02:00:07,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:07,352 INFO L225 Difference]: With dead ends: 24 [2022-11-22 02:00:07,352 INFO L226 Difference]: Without dead ends: 21 [2022-11-22 02:00:07,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 21 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=284, Invalid=1048, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 02:00:07,353 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:07,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 8 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:00:07,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-22 02:00:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-22 02:00:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:00:07,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-22 02:00:07,369 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2022-11-22 02:00:07,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:07,369 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-22 02:00:07,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.125) 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) [2022-11-22 02:00:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-22 02:00:07,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 02:00:07,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:07,370 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:07,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-22 02:00:07,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:07,575 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:00:07,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:07,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1825647221, now seen corresponding path program 19 times [2022-11-22 02:00:07,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:07,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975825013] [2022-11-22 02:00:07,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:07,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:07,591 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:00:07,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186200280] [2022-11-22 02:00:07,592 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 02:00:07,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:07,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:00:07,593 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:00:07,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-22 02:00:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:07,748 WARN L261 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-22 02:00:07,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:00:07,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 02:00:07,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:00:07,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 02:00:08,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:08,214 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 31 treesize of output 33 [2022-11-22 02:00:08,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:08,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:08,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 02:00:08,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:08,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:08,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:08,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:08,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:08,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 57 [2022-11-22 02:00:09,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,184 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 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 72 [2022-11-22 02:00:09,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:09,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2022-11-22 02:00:10,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:10,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:10,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:10,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:10,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:10,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:10,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2022-11-22 02:00:11,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 141 treesize of output 137 [2022-11-22 02:00:11,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-11-22 02:00:11,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 136 treesize of output 130 [2022-11-22 02:00:11,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-22 02:00:11,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-22 02:00:12,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 97 [2022-11-22 02:00:12,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 100 [2022-11-22 02:00:13,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 162 treesize of output 152 [2022-11-22 02:00:13,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 46 [2022-11-22 02:00:13,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2022-11-22 02:00:13,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:13,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:14,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:14,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:14,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:14,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:14,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 98 [2022-11-22 02:00:14,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 85 [2022-11-22 02:00:14,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 47 [2022-11-22 02:00:15,273 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:15,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:00:15,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 02:01:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:01:36,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:01:36,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975825013] [2022-11-22 02:01:36,902 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:01:36,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186200280] [2022-11-22 02:01:36,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186200280] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:01:36,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2139155532] [2022-11-22 02:01:36,906 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 02:01:36,906 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:01:36,906 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:01:36,906 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:01:36,907 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:01:36,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:36,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:37,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:37,644 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 02:01:37,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 02:01:37,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:37,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:37,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-22 02:01:37,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:37,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 02:01:37,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:37,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:37,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 02:01:38,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:38,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:38,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:38,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:38,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:38,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:38,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:38,566 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 02:01:38,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 02:01:38,743 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 16 treesize of output 12 [2022-11-22 02:01:38,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:39,051 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 02:01:39,052 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 02:01:39,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:39,327 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 02:01:39,328 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 02:01:39,775 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 02:01:39,775 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 02:01:40,323 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 02:01:40,323 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 02:01:40,407 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:01:49,519 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3339#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 02:01:49,519 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:01:49,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:01:49,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2022-11-22 02:01:49,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102146034] [2022-11-22 02:01:49,519 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 02:01:49,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-22 02:01:49,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:01:49,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-22 02:01:49,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1390, Unknown=7, NotChecked=0, Total=1560 [2022-11-22 02:01:49,520 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 36 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 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) [2022-11-22 02:02:00,706 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse70 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse92 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse70 |c_ULTIMATE.start_main_~a~0#1.offset|) 3))) (let ((.cse18 (store .cse92 (+ .cse70 |c_ULTIMATE.start_main_~a~0#1.offset| 4) 3))) (let ((.cse45 (store .cse18 (+ .cse70 8 |c_ULTIMATE.start_main_~a~0#1.offset|) 3))) (let ((.cse30 (store .cse45 (+ .cse70 12 |c_ULTIMATE.start_main_~a~0#1.offset|) 3))) (let ((.cse81 (store .cse30 (+ .cse70 16 |c_ULTIMATE.start_main_~a~0#1.offset|) 3))) (let ((.cse0 (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse31 (< (+ 3 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse47 (< (+ 6 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse58 (store .cse81 (+ .cse70 20 |c_ULTIMATE.start_main_~a~0#1.offset|) 3)) (.cse46 (< (+ 5 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse32 (< (+ |c_ULTIMATE.start_main_~i~0#1| 4) c_~N~0)) (.cse19 (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) c_~N~0)) (.cse9 (* c_~N~0 3)) (.cse12 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse13 (+ 20 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse15 (+ 12 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse16 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (or .cse0 (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse18))) (let ((.cse11 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse4 (select .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse5 (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse7 (select (select (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse2 (select (select (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse1 (select (select (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse4 .cse5 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse8 (select (select (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse4 .cse5 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse3 (select (select (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse4 .cse5 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse6 (select (select (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse11 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12))) (and (= (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse9) (= 3 .cse5) (= .cse3 3) (= .cse1 3) (= 3 .cse6) (= 3 .cse7) (= 3 .cse8) (= .cse2 3))))))))))) (not .cse19)) (< 6 c_~N~0) (or (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse30))) (let ((.cse29 (select .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse26 (select .cse29 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse27 (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse22 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse29 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse25 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse29 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse20 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse29 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse25 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse23 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse29 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse20 .cse25 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse24 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse29 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse22 .cse20 .cse25 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse21 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse29 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse23 .cse22 .cse20 .cse25 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12))) (and (= 3 .cse20) (= .cse21 3) (= 3 .cse22) (= 3 .cse23) (= .cse9 (+ .cse24 .cse21 .cse23 .cse22 .cse20 .cse25 .cse26 .cse27)) (= .cse24 3) (= 3 .cse27) (= 3 .cse25))))))))))) (not .cse31) .cse32) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (let ((.cse34 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse33 (select .cse34 24))) (and (= .cse33 3) (= 3 (select .cse34 16)) (= 3 (select .cse34 8)) (= 3 (select .cse34 0)) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (+ .cse33 18)) (= 3 (select .cse34 12)) (= (select .cse34 20) 3) (= 3 (select .cse34 4)) (not (= |ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)))))) (<= c_~N~0 7) (or (let ((.cse43 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse45))) (let ((.cse44 (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse39 (select .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse36 (select .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse42 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse37 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse36 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse41 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse37 .cse36 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse38 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse37 .cse36 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse35 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse39 .cse37 .cse36 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse40 (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse39 .cse35 .cse37 .cse36 .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12))) (and (= 3 .cse35) (= 3 .cse36) (= 3 .cse37) (= (+ .cse38 .cse39 .cse40 .cse35 .cse37 .cse36 .cse41 .cse42) .cse9) (= 3 .cse41) (= 3 .cse42) (= .cse40 3) (= .cse38 3))))))))))) (not .cse0) .cse31) (or (not .cse46) .cse47 (let ((.cse56 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse58))) (let ((.cse57 (select .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse54 (select .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse49 (select .cse58 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse52 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse48 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse49 .cse52))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse50 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse49 .cse48 .cse52))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse51 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse49 .cse50 .cse48 .cse52))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse53 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse54 .cse49 .cse50 .cse48 .cse52))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse55 (select (select (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse57 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse53 .cse54 .cse49 .cse50 .cse48 .cse52))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12))) (and (= 3 .cse48) (= .cse49 3) (= 3 .cse50) (= .cse51 3) (= 3 .cse52) (= (+ .cse51 .cse53 .cse54 .cse49 .cse50 .cse48 .cse52 .cse55) .cse9) (= .cse53 3) (= 3 .cse55)))))))))))) (or (not .cse47) (< (+ 7 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (let ((.cse69 (store .cse58 (+ .cse70 |c_ULTIMATE.start_main_~a~0#1.offset| 24) 3))) (let ((.cse67 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse69))) (let ((.cse68 (select .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse62 (select .cse69 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse64 (select .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse59 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse64))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse66 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse64 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse65 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse64 .cse59 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse60 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse64 .cse65 .cse59 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse63 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse64 .cse65 .cse60 .cse59 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse61 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse63 .cse64 .cse65 .cse60 .cse59 .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12))) (and (= .cse59 3) (= .cse60 3) (= .cse61 3) (= (+ .cse62 .cse63 .cse64 .cse65 .cse61 .cse60 .cse59 .cse66) .cse9) (= 3 .cse66) (= .cse62 3) (= .cse63 3) (= .cse65 3))))))))))))) (or (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse81))) (let ((.cse80 (select .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse77 (select .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse78 (select .cse81 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse74 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse77 .cse78))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse71 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse74 .cse77 .cse78))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse72 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse74 .cse77 .cse78 .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse73 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse74 .cse77 .cse78 .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse76 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse73 .cse74 .cse77 .cse78 .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse75 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse80 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse73 .cse74 .cse76 .cse77 .cse78 .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12))) (and (= 3 .cse71) (= (+ .cse72 .cse73 .cse74 .cse75 .cse76 .cse77 .cse78 .cse71) .cse9) (= .cse73 3) (= 3 .cse78) (= 3 .cse75) (= 3 .cse76) (= 3 .cse74) (= .cse72 3))))))))))) .cse46 (not .cse32)) (or .cse19 (let ((.cse90 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse92))) (let ((.cse91 (select .cse90 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse87 (select .cse91 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse83 (select .cse92 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse82 (select (select (store .cse90 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse91 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse83))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse17))) (let ((.cse89 (select (select (store .cse90 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse91 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse83 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse16))) (let ((.cse86 (select (select (store .cse90 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse91 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse83 .cse82 .cse89))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse15))) (let ((.cse84 (select (select (store .cse90 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse91 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse83 .cse82 .cse86 .cse89))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse14))) (let ((.cse88 (select (select (store .cse90 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse91 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse83 .cse82 .cse86 .cse89 .cse84))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13))) (let ((.cse85 (select (select (store .cse90 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse91 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse87 .cse83 .cse82 .cse88 .cse86 .cse89 .cse84))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse12))) (and (= .cse82 3) (= .cse83 3) (= 3 .cse84) (= 3 .cse85) (= 3 .cse86) (= (+ .cse87 .cse83 .cse82 .cse88 .cse85 .cse86 .cse89 .cse84) .cse9) (= 3 .cse89) (= 3 .cse88))))))))))) (not (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0))))))))))) is different from false [2022-11-22 02:02:02,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:02,596 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-11-22 02:02:02,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 02:02:02,597 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 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 20 [2022-11-22 02:02:02,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:02,597 INFO L225 Difference]: With dead ends: 33 [2022-11-22 02:02:02,597 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 02:02:02,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 12 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 89.5s TimeCoverageRelationStatistics Valid=171, Invalid=1465, Unknown=8, NotChecked=78, Total=1722 [2022-11-22 02:02:02,598 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:02,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 376 Invalid, 0 Unknown, 2 Unchecked, 7.9s Time] [2022-11-22 02:02:02,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 02:02:02,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2022-11-22 02:02:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2022-11-22 02:02:02,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-22 02:02:02,630 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2022-11-22 02:02:02,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:02,631 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-22 02:02:02,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 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) [2022-11-22 02:02:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-22 02:02:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 02:02:02,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:02,632 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:02,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-22 02:02:02,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:02,837 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:02,838 INFO L85 PathProgramCache]: Analyzing trace with hash -760380420, now seen corresponding path program 20 times [2022-11-22 02:02:02,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:02,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24606176] [2022-11-22 02:02:02,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:02,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:02,865 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:02:02,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748123785] [2022-11-22 02:02:02,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:02:02,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:02,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:02,866 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:02:02,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-22 02:02:03,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-22 02:02:03,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:02:03,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-22 02:02:03,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:05,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:02:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:07,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:07,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24606176] [2022-11-22 02:02:07,528 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:02:07,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748123785] [2022-11-22 02:02:07,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748123785] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:02:07,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [978714752] [2022-11-22 02:02:07,530 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 02:02:07,530 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:02:07,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:02:07,531 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:02:07,531 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:02:07,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:07,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:07,695 INFO L217 Elim1Store]: Index analysis took 115 ms [2022-11-22 02:02:08,163 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 02:02:08,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 02:02:08,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:08,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:08,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:08,798 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 02:02:08,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 02:02:08,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:08,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 02:02:08,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:08,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:08,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2022-11-22 02:02:09,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:09,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:09,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:09,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:09,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:09,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:09,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:09,499 INFO L321 Elim1Store]: treesize reduction 186, result has 18.4 percent of original size [2022-11-22 02:02:09,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 429 treesize of output 424 [2022-11-22 02:02:09,597 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 16 treesize of output 12 [2022-11-22 02:02:09,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:09,845 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 02:02:09,846 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 02:02:09,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:10,180 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 02:02:10,181 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 02:02:10,577 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 02:02:10,578 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 02:02:11,163 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 02:02:11,163 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 02:02:11,231 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:02:15,515 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3592#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 02:02:15,515 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:02:15,515 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:02:15,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 26 [2022-11-22 02:02:15,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851594604] [2022-11-22 02:02:15,516 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 02:02:15,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-22 02:02:15,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:15,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-22 02:02:15,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=674, Unknown=0, NotChecked=0, Total=870 [2022-11-22 02:02:15,517 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 26 states, 26 states have (on average 1.1538461538461537) 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) [2022-11-22 02:02:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:17,486 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-11-22 02:02:17,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:02:17,486 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.1538461538461537) 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) Word has length 21 [2022-11-22 02:02:17,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:17,487 INFO L225 Difference]: With dead ends: 38 [2022-11-22 02:02:17,487 INFO L226 Difference]: Without dead ends: 26 [2022-11-22 02:02:17,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 16 SyntacticMatches, 17 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=332, Invalid=1150, Unknown=0, NotChecked=0, Total=1482 [2022-11-22 02:02:17,488 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:17,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:02:17,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-22 02:02:17,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2022-11-22 02:02:17,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-22 02:02:17,514 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 21 [2022-11-22 02:02:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:17,515 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-22 02:02:17,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.1538461538461537) 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) [2022-11-22 02:02:17,515 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-22 02:02:17,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 02:02:17,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:17,516 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:17,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-22 02:02:17,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-22 02:02:17,724 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:17,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:17,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1269137250, now seen corresponding path program 21 times [2022-11-22 02:02:17,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:17,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644121786] [2022-11-22 02:02:17,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:17,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:17,741 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:02:17,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146862792] [2022-11-22 02:02:17,742 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 02:02:17,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:17,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:17,743 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:02:17,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-22 02:02:18,145 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 02:02:18,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:02:18,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-22 02:02:18,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:20,168 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:20,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:02:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 28 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:21,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:21,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644121786] [2022-11-22 02:02:21,766 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:02:21,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146862792] [2022-11-22 02:02:21,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146862792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:02:21,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1840699859] [2022-11-22 02:02:21,768 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 02:02:21,768 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:02:21,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:02:21,769 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:02:21,769 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:02:21,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:21,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:22,310 INFO L321 Elim1Store]: treesize reduction 68, result has 33.3 percent of original size [2022-11-22 02:02:22,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 57 [2022-11-22 02:02:22,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:22,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:22,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:22,963 INFO L321 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-22 02:02:22,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-22 02:02:23,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2022-11-22 02:02:23,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2022-11-22 02:02:23,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:23,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,613 INFO L321 Elim1Store]: treesize reduction 214, result has 11.9 percent of original size [2022-11-22 02:02:23,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 434 treesize of output 423 [2022-11-22 02:02:23,717 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 16 treesize of output 12 [2022-11-22 02:02:23,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:24,004 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 02:02:24,004 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2022-11-22 02:02:24,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:24,278 INFO L321 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-22 02:02:24,279 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2022-11-22 02:02:24,693 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 02:02:24,693 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2022-11-22 02:02:25,087 INFO L321 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-22 02:02:25,087 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2022-11-22 02:02:25,130 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:02:27,685 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3865#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 3 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0) (not (< |ULTIMATE.start_main_~i~0#1| ~N~0)))' at error location [2022-11-22 02:02:27,686 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:02:27,686 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 02:02:27,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 27 [2022-11-22 02:02:27,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788499027] [2022-11-22 02:02:27,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 02:02:27,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-22 02:02:27,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:27,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-22 02:02:27,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2022-11-22 02:02:27,688 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 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) [2022-11-22 02:02:29,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:29,833 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2022-11-22 02:02:29,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 02:02:29,833 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 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 21 [2022-11-22 02:02:29,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:29,834 INFO L225 Difference]: With dead ends: 26 [2022-11-22 02:02:29,834 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 02:02:29,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 23 SyntacticMatches, 9 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=349, Invalid=1291, Unknown=0, NotChecked=0, Total=1640 [2022-11-22 02:02:29,835 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 21 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:29,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 10 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:02:29,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 02:02:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-22 02:02:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 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) [2022-11-22 02:02:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-22 02:02:29,858 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2022-11-22 02:02:29,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:29,858 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-22 02:02:29,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 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) [2022-11-22 02:02:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-22 02:02:29,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 02:02:29,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:29,859 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:29,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-22 02:02:30,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-22 02:02:30,066 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:30,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:30,066 INFO L85 PathProgramCache]: Analyzing trace with hash -688440503, now seen corresponding path program 22 times [2022-11-22 02:02:30,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:30,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186625333] [2022-11-22 02:02:30,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:30,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:30,083 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:02:30,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181689675] [2022-11-22 02:02:30,084 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-22 02:02:30,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:30,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:30,085 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:02:30,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-22 02:02:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:30,268 WARN L261 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 119 conjunts are in the unsatisfiable core [2022-11-22 02:02:30,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:30,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 02:02:30,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:02:30,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2022-11-22 02:02:30,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,667 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 28 treesize of output 30 [2022-11-22 02:02:30,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 02:02:31,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 02:02:31,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,519 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 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 69 [2022-11-22 02:02:31,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2022-11-22 02:02:32,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2022-11-22 02:02:32,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 102 [2022-11-22 02:02:34,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 150 treesize of output 144 [2022-11-22 02:02:34,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-11-22 02:02:34,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 74 [2022-11-22 02:02:34,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 159 treesize of output 151 [2022-11-22 02:02:34,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 31 [2022-11-22 02:02:35,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 109 [2022-11-22 02:02:36,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 110 [2022-11-22 02:02:36,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:36,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 107 [2022-11-22 02:02:37,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 158 treesize of output 150 [2022-11-22 02:02:37,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2022-11-22 02:02:37,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 81 [2022-11-22 02:02:38,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 168 treesize of output 158 [2022-11-22 02:02:38,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 40 [2022-11-22 02:02:38,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 89 [2022-11-22 02:02:39,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 97 [2022-11-22 02:02:39,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 53 [2022-11-22 02:02:39,954 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:39,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:02:40,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 02:02:41,233 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse6 (= 3 .cse3)) (.cse1 (* c_~N~0 3)) (.cse5 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (or (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (and (= .cse0 3) (= .cse1 (+ .cse2 .cse0 .cse3)))))) (not .cse6)) (or .cse6 (and (forall ((v_ArrVal_1715 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1715) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5))) (forall ((v_ArrVal_1715 (Array Int Int))) (= .cse1 (+ (select v_ArrVal_1715 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1715) |c_ULTIMATE.start_main_~a~0#1.base|) .cse5)))))))))) is different from false [2022-11-22 02:02:42,140 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse14 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse6 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|))) (.cse7 (* c_~N~0 3)) (.cse9 (+ .cse14 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (and (forall ((v_ArrVal_1715 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1715) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (forall ((v_ArrVal_1715 (Array Int Int))) (= .cse7 (+ (select v_ArrVal_1715 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1715) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9)))))) (.cse10 (+ .cse14 |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse0 (= 3 .cse6))) (and (or (not .cse0) (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse4 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10))) (let ((.cse2 (= .cse5 3))) (and (or .cse1 .cse2) (or (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse4 .cse5 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))) (and (= 3 .cse3) (= (+ .cse4 .cse5 .cse6 .cse3) .cse7))) (not .cse2)))))))) (or (and (forall ((v_ArrVal_1711 (Array Int Int))) (let ((.cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1711) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10))) (or (not (= .cse11 3)) (= .cse7 (let ((.cse12 (select v_ArrVal_1711 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse11 .cse12 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1711 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 .cse12))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9))))))) (or .cse1 (forall ((v_ArrVal_1711 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1711) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10) 3))) (forall ((v_ArrVal_1711 (Array Int Int))) (let ((.cse13 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1711) |c_ULTIMATE.start_main_~a~0#1.base|) .cse10))) (or (not (= .cse13 3)) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1711 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse13 (select v_ArrVal_1711 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse9)))))) .cse0))))) is different from false [2022-11-22 02:02:45,235 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse22 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse7 (* c_~N~0 3)) (.cse6 (+ .cse22 12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse8 (+ .cse22 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse10 (and (forall ((v_ArrVal_1715 (Array Int Int))) (= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1715) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) (select v_ArrVal_1715 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) .cse7)) (forall ((v_ArrVal_1715 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1715) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) 3)))) (.cse19 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse0 (= 3 .cse19)) (.cse1 (and (forall ((v_ArrVal_1711 (Array Int Int))) (let ((.cse23 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1711) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (or (not (= .cse23 3)) (= .cse7 (let ((.cse24 (select v_ArrVal_1711 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse23 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1711 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse24))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) .cse24)))))) (forall ((v_ArrVal_1711 (Array Int Int))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1711) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1711 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 (select v_ArrVal_1711 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) 3) (not (= .cse25 3))))) (or (forall ((v_ArrVal_1711 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1711) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8) 3)) .cse10))) (.cse2 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (or .cse0 (and (or .cse1 (forall ((v_ArrVal_1709 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1709) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2)))) (forall ((v_ArrVal_1709 (Array Int Int))) (let ((.cse5 (select v_ArrVal_1709 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1709) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1709 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (or (not (= 3 .cse3)) (not (= 3 .cse4)) (= (+ .cse5 .cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1709 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) .cse4) .cse7))))) (or (forall ((v_ArrVal_1709 (Array Int Int))) (let ((.cse9 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1709) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (or (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1709 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1709 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse9))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8)) (not (= 3 .cse9))))) .cse10) (forall ((v_ArrVal_1709 (Array Int Int))) (let ((.cse12 (select v_ArrVal_1709 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse13 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1709) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1709 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (or (not (= 3 .cse11)) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1709 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse11 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6)) (not (= 3 .cse13)))))))) (or (not .cse0) (let ((.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse17 (select .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse18 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse19))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))) (let ((.cse14 (= .cse18 3))) (and (or .cse1 .cse14) (or (not .cse14) (let ((.cse20 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18 .cse19))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse8))) (let ((.cse15 (= 3 .cse20))) (and (or .cse15 .cse10) (or (not .cse15) (let ((.cse16 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18 .cse19 .cse20))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6))) (and (= .cse16 3) (= (+ .cse16 .cse17 .cse18 .cse19 .cse20) .cse7))))))))))))))))))) is different from false [2022-11-22 02:02:48,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-11-22 02:02:48,548 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-22 02:02:48,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:48,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186625333] [2022-11-22 02:02:48,549 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:02:48,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181689675] [2022-11-22 02:02:48,549 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2022-11-22 02:02:48,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [184553272] [2022-11-22 02:02:48,550 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 02:02:48,551 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:02:48,551 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:02:48,551 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:02:48,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:02:48,553 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:273) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:221) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 44 more [2022-11-22 02:02:48,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:48,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2022-11-22 02:02:48,557 ERROR L170 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2022-11-22 02:02:48,557 INFO L359 BasicCegarLoop]: Counterexample might be feasible [2022-11-22 02:02:48,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:02:48,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-22 02:02:48,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:48,770 INFO L444 BasicCegarLoop]: Path program histogram: [22, 1, 1] [2022-11-22 02:02:48,773 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:02:48,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:02:48 BoogieIcfgContainer [2022-11-22 02:02:48,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:02:48,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:02:48,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:02:48,792 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:02:48,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:19" (3/4) ... [2022-11-22 02:02:48,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:02:48,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:02:48,796 INFO L158 Benchmark]: Toolchain (without parser) took 450312.49ms. Allocated memory was 169.9MB in the beginning and 323.0MB in the end (delta: 153.1MB). Free memory was 127.4MB in the beginning and 280.7MB in the end (delta: -153.3MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-22 02:02:48,796 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:02:48,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.92ms. Allocated memory is still 169.9MB. Free memory was 127.4MB in the beginning and 116.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:02:48,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.75ms. Allocated memory is still 169.9MB. Free memory was 116.7MB in the beginning and 115.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:02:48,797 INFO L158 Benchmark]: Boogie Preprocessor took 28.07ms. Allocated memory is still 169.9MB. Free memory was 115.0MB in the beginning and 113.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:02:48,797 INFO L158 Benchmark]: RCFGBuilder took 473.93ms. Allocated memory is still 169.9MB. Free memory was 113.5MB in the beginning and 99.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 02:02:48,797 INFO L158 Benchmark]: TraceAbstraction took 449491.21ms. Allocated memory was 169.9MB in the beginning and 323.0MB in the end (delta: 153.1MB). Free memory was 98.4MB in the beginning and 280.7MB in the end (delta: -182.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:02:48,798 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 323.0MB. Free memory is still 280.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:02:48,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.92ms. Allocated memory is still 169.9MB. Free memory was 127.4MB in the beginning and 116.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.75ms. Allocated memory is still 169.9MB. Free memory was 116.7MB in the beginning and 115.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.07ms. Allocated memory is still 169.9MB. Free memory was 115.0MB in the beginning and 113.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 473.93ms. Allocated memory is still 169.9MB. Free memory was 113.5MB in the beginning and 99.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 449491.21ms. Allocated memory was 169.9MB in the beginning and 323.0MB in the end (delta: 153.1MB). Free memory was 98.4MB in the beginning and 280.7MB in the end (delta: -182.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 323.0MB. Free memory is still 280.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 15]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND TRUE !cond [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba 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 ! call(reach_error())) ) 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 -> e1607ef1a0546f5061a453264a19ed217d8c8fc9b28320eac9d61d4efa33b72e [2022-11-22 02:02:51,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:02:51,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:02:51,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:02:51,540 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:02:51,541 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:02:51,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-fpi/s3if.c [2022-11-22 02:02:54,743 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:02:54,940 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:02:54,940 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/sv-benchmarks/c/array-fpi/s3if.c [2022-11-22 02:02:54,949 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/data/e0e63c79d/7a32260a3ea24320b1070080399f135b/FLAGf833d8880 [2022-11-22 02:02:54,976 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/data/e0e63c79d/7a32260a3ea24320b1070080399f135b [2022-11-22 02:02:54,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:02:54,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:02:54,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:54,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:02:54,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:02:54,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:54" (1/1) ... [2022-11-22 02:02:54,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4569326c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:54, skipping insertion in model container [2022-11-22 02:02:54,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:54" (1/1) ... [2022-11-22 02:02:54,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:02:55,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:02:55,168 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/sv-benchmarks/c/array-fpi/s3if.c[587,600] [2022-11-22 02:02:55,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:55,229 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:02:55,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/sv-benchmarks/c/array-fpi/s3if.c[587,600] [2022-11-22 02:02:55,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:55,302 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:02:55,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55 WrapperNode [2022-11-22 02:02:55,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:55,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:55,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:02:55,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:02:55,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,374 INFO L138 Inliner]: procedures = 21, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2022-11-22 02:02:55,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:55,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:02:55,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:02:55,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:02:55,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,427 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:02:55,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:02:55,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:02:55,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:02:55,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (1/1) ... [2022-11-22 02:02:55,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:02:55,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:55,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:02:55,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:02:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:02:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 02:02:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:02:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-22 02:02:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:02:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 02:02:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:02:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:02:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-22 02:02:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:02:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 02:02:55,654 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:02:55,656 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:02:55,897 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:02:55,902 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:02:55,902 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:02:55,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:55 BoogieIcfgContainer [2022-11-22 02:02:55,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:02:55,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:02:55,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:02:55,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:02:55,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:02:54" (1/3) ... [2022-11-22 02:02:55,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffa0ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:55, skipping insertion in model container [2022-11-22 02:02:55,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:55" (2/3) ... [2022-11-22 02:02:55,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffa0ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:55, skipping insertion in model container [2022-11-22 02:02:55,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:55" (3/3) ... [2022-11-22 02:02:55,913 INFO L112 eAbstractionObserver]: Analyzing ICFG s3if.c [2022-11-22 02:02:55,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:02:55,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:02:56,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:02:56,023 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;@58135730, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:02:56,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:02:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 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) [2022-11-22 02:02:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:02:56,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:56,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:56,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:56,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:56,049 INFO L85 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2022-11-22 02:02:56,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:02:56,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929246417] [2022-11-22 02:02:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:56,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:02:56,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:02:56,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:02:56,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 02:02:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:56,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 02:02:56,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:56,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:02:56,247 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:02:56,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929246417] [2022-11-22 02:02:56,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929246417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:56,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:56,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:02:56,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338897088] [2022-11-22 02:02:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:56,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:02:56,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:02:56,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:02:56,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:02:56,304 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2022-11-22 02:02:56,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:56,323 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2022-11-22 02:02:56,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:02:56,326 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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 [2022-11-22 02:02:56,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:56,335 INFO L225 Difference]: With dead ends: 34 [2022-11-22 02:02:56,335 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 02:02:56,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:02:56,343 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:56,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:02:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 02:02:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 02:02:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 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) [2022-11-22 02:02:56,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-22 02:02:56,392 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2022-11-22 02:02:56,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:56,393 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-22 02:02:56,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2022-11-22 02:02:56,394 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-22 02:02:56,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:02:56,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:56,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:56,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:02:56,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:02:56,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:56,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:56,610 INFO L85 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2022-11-22 02:02:56,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:02:56,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851235107] [2022-11-22 02:02:56,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:56,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:02:56,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:02:56,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:02:56,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 02:02:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:56,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:02:56,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:56,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:02:56,900 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:02:56,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851235107] [2022-11-22 02:02:56,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851235107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:56,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:56,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:02:56,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440369768] [2022-11-22 02:02:56,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:56,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:56,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:02:56,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:56,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:56,904 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.2) 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) [2022-11-22 02:02:57,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:57,271 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-11-22 02:02:57,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:57,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) 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 [2022-11-22 02:02:57,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:57,284 INFO L225 Difference]: With dead ends: 28 [2022-11-22 02:02:57,284 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 02:02:57,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:02:57,286 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 38 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:57,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 8 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:02:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 02:02:57,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2022-11-22 02:02:57,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:57,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-22 02:02:57,294 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2022-11-22 02:02:57,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:57,294 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-22 02:02:57,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) 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) [2022-11-22 02:02:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-22 02:02:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 02:02:57,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:57,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:57,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:02:57,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:02:57,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:57,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:57,508 INFO L85 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2022-11-22 02:02:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:02:57,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149202987] [2022-11-22 02:02:57,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:57,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:02:57,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:02:57,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:02:57,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-22 02:02:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:57,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-22 02:02:57,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:57,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 02:02:57,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:57,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-22 02:02:58,011 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:58,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2022-11-22 02:02:58,561 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:58,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 47 [2022-11-22 02:02:58,866 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:58,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 52 [2022-11-22 02:02:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:58,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:04,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:05,156 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:03:05,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149202987] [2022-11-22 02:03:05,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149202987] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:05,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2081689751] [2022-11-22 02:03:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:05,158 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:03:05,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:03:05,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:03:05,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-11-22 02:03:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:05,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-22 02:03:05,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:05,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:05,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:05,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-22 02:03:05,783 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:03:05,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2022-11-22 02:03:05,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:05,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-11-22 02:03:06,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:06,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:06,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 51 [2022-11-22 02:03:07,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:07,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 52 [2022-11-22 02:03:07,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:07,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:14,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:14,743 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:14,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 79 [2022-11-22 02:03:14,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:14,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 43 [2022-11-22 02:03:14,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 29 [2022-11-22 02:03:14,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:14,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2081689751] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:14,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883329284] [2022-11-22 02:03:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:14,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:14,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:14,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:14,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:03:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:14,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-22 02:03:14,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:14,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 02:03:14,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:14,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-22 02:03:15,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-22 02:03:15,701 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:15,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 51 [2022-11-22 02:03:15,905 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:15,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 52 [2022-11-22 02:03:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:15,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:26,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:27,016 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:27,017 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 85 [2022-11-22 02:03:27,027 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:27,039 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:27,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 43 [2022-11-22 02:03:27,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 29 [2022-11-22 02:03:27,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:27,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883329284] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:27,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 02:03:27,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 9, 10, 10, 11] total 35 [2022-11-22 02:03:27,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749247718] [2022-11-22 02:03:27,092 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 02:03:27,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-22 02:03:27,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:03:27,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-22 02:03:27,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=962, Unknown=18, NotChecked=0, Total=1190 [2022-11-22 02:03:27,096 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:38,474 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-11-22 02:03:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:38,475 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-22 02:03:38,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:38,476 INFO L225 Difference]: With dead ends: 36 [2022-11-22 02:03:38,476 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 02:03:38,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=412, Invalid=1731, Unknown=19, NotChecked=0, Total=2162 [2022-11-22 02:03:38,478 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 69 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:38,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 45 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-22 02:03:38,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 02:03:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2022-11-22 02:03:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 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) [2022-11-22 02:03:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-22 02:03:38,486 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 16 [2022-11-22 02:03:38,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:38,487 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-22 02:03:38,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:38,487 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-22 02:03:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:03:38,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:38,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:38,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-22 02:03:38,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-11-22 02:03:38,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:39,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:03:39,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:39,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:39,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1137819675, now seen corresponding path program 2 times [2022-11-22 02:03:39,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:03:39,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643910852] [2022-11-22 02:03:39,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 02:03:39,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:03:39,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:03:39,097 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:03:39,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-22 02:03:39,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 02:03:39,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:03:39,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 02:03:39,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:39,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:39,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:40,067 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:03:40,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643910852] [2022-11-22 02:03:40,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643910852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:40,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [624701460] [2022-11-22 02:03:40,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 02:03:40,068 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:03:40,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:03:40,075 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:03:40,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-22 02:03:40,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 02:03:40,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:03:40,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-22 02:03:40,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:40,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:40,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:40,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [624701460] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:40,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066706347] [2022-11-22 02:03:40,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 02:03:40,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:40,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:40,528 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:40,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 02:03:40,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 02:03:40,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:03:40,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:03:40,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:40,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:41,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066706347] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:41,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 02:03:41,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11, 9, 8, 7] total 25 [2022-11-22 02:03:41,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092625269] [2022-11-22 02:03:41,156 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 02:03:41,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-22 02:03:41,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:03:41,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-22 02:03:41,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2022-11-22 02:03:41,157 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 25 states, 25 states have (on average 1.92) internal successors, (48), 25 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:43,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:43,662 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2022-11-22 02:03:43,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:03:43,662 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.92) internal successors, (48), 25 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-22 02:03:43,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:43,663 INFO L225 Difference]: With dead ends: 54 [2022-11-22 02:03:43,664 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 02:03:43,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=365, Invalid=967, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 02:03:43,665 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 202 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:43,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 24 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:03:43,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 02:03:43,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2022-11-22 02:03:43,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 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) [2022-11-22 02:03:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-22 02:03:43,677 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 18 [2022-11-22 02:03:43,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:43,677 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-22 02:03:43,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.92) internal successors, (48), 25 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:43,678 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-22 02:03:43,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 02:03:43,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:43,679 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:43,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2022-11-22 02:03:43,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:44,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:44,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:44,282 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:44,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:44,282 INFO L85 PathProgramCache]: Analyzing trace with hash -479454913, now seen corresponding path program 3 times [2022-11-22 02:03:44,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:03:44,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501631355] [2022-11-22 02:03:44,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:03:44,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:03:44,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:03:44,286 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:03:44,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-22 02:03:44,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 02:03:44,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:03:44,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 02:03:44,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:44,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:44,935 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:03:44,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501631355] [2022-11-22 02:03:44,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501631355] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:44,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [791486746] [2022-11-22 02:03:44,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:03:44,936 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:03:44,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:03:44,943 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:03:44,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-22 02:03:45,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 02:03:45,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:03:45,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 02:03:45,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:45,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:45,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:45,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [791486746] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:45,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829810984] [2022-11-22 02:03:45,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:03:45,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:45,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:03:45,259 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:03:45,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 02:03:45,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 02:03:45,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:03:45,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:03:45,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:45,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:45,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:45,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829810984] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:45,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 02:03:45,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9, 7, 8, 7] total 17 [2022-11-22 02:03:45,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831700500] [2022-11-22 02:03:45,585 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 02:03:45,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 02:03:45,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:03:45,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 02:03:45,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:03:45,586 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 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) [2022-11-22 02:03:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:46,716 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-11-22 02:03:46,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:03:46,716 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 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 19 [2022-11-22 02:03:46,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:46,717 INFO L225 Difference]: With dead ends: 46 [2022-11-22 02:03:46,717 INFO L226 Difference]: Without dead ends: 34 [2022-11-22 02:03:46,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2022-11-22 02:03:46,719 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 109 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:46,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 15 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:03:46,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-22 02:03:46,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-11-22 02:03:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 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) [2022-11-22 02:03:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2022-11-22 02:03:46,728 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 19 [2022-11-22 02:03:46,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:46,728 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2022-11-22 02:03:46,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 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) [2022-11-22 02:03:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2022-11-22 02:03:46,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 02:03:46,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:46,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:46,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:46,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:47,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 02:03:47,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:03:47,339 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:03:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:47,339 INFO L85 PathProgramCache]: Analyzing trace with hash 634982145, now seen corresponding path program 4 times [2022-11-22 02:03:47,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:03:47,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415277947] [2022-11-22 02:03:47,340 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 02:03:47,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:03:47,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:03:47,342 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:03:47,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-22 02:03:47,452 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 02:03:47,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:03:47,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-22 02:03:47,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:47,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 02:03:47,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:47,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-22 02:03:47,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-22 02:03:47,793 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:47,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2022-11-22 02:03:48,535 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 02:03:48,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 63 [2022-11-22 02:03:48,942 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:48,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 117 treesize of output 73 [2022-11-22 02:03:49,248 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:49,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 151 treesize of output 83 [2022-11-22 02:03:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:49,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:04:01,766 INFO L321 Elim1Store]: treesize reduction 14, result has 65.9 percent of original size [2022-11-22 02:04:01,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 869 treesize of output 557 [2022-11-22 02:05:01,688 WARN L233 SmtUtils]: Spent 44.44s on a formula simplification. DAG size of input: 82 DAG size of output: 80 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:05:01,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:01,826 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 02:05:01,827 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 546 treesize of output 1 [2022-11-22 02:05:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:01,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:05:01,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415277947] [2022-11-22 02:05:01,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415277947] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:05:01,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1947789231] [2022-11-22 02:05:01,830 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 02:05:01,830 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:05:01,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:05:01,838 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:05:01,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-22 02:05:02,022 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 02:05:02,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:05:02,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-22 02:05:02,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:05:03,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:03,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:03,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-22 02:05:04,790 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:05:04,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2022-11-22 02:05:04,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:04,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-11-22 02:05:07,890 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:05:07,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2022-11-22 02:05:08,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2022-11-22 02:05:22,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:23,602 INFO L321 Elim1Store]: treesize reduction 121, result has 17.1 percent of original size [2022-11-22 02:05:23,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 62 [2022-11-22 02:05:28,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:28,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:28,945 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:05:28,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 75 [2022-11-22 02:05:33,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:33,762 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:05:33,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 75 [2022-11-22 02:05:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:05:33,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:06:06,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:06:07,028 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-22 02:06:07,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 698 treesize of output 1 [2022-11-22 02:06:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:07,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1947789231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:06:07,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009939714] [2022-11-22 02:06:07,033 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 02:06:07,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:06:07,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:06:07,038 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:06:07,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_009fe71c-ac22-4b30-a399-9dc3203e84b5/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 02:06:07,138 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 02:06:07,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:06:07,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-22 02:06:07,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:06:07,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 02:06:07,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:06:07,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-22 02:06:07,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-22 02:06:08,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-22 02:06:22,383 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:06:22,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 51 [2022-11-22 02:06:31,192 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:06:31,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 79 [2022-11-22 02:06:39,855 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:06:39,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 129 treesize of output 83 [2022-11-22 02:06:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:06:39,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:07:06,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:07:06,142 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 02:07:06,142 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 776 treesize of output 1 [2022-11-22 02:07:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:06,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009939714] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:07:06,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 02:07:06,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 13, 12, 14, 12] total 55 [2022-11-22 02:07:06,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549031879] [2022-11-22 02:07:06,146 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 02:07:06,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-22 02:07:06,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:07:06,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-22 02:07:06,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=2581, Unknown=42, NotChecked=0, Total=2970 [2022-11-22 02:07:06,149 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 55 states, 55 states have (on average 1.5454545454545454) internal successors, (85), 55 states have internal predecessors, (85), 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) [2022-11-22 02:07:32,239 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse25 (bvslt (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse4 ((_ sign_extend 32) (bvmul c_~N~0 (_ bv3 32)))) (.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse14 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_104| (_ BitVec 32)) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse59 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_259))) (let ((.cse60 (select .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse58 (select v_ArrVal_259 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_104|))))) (let ((.cse61 (bvadd (concat (select .cse60 .cse9) (select .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse58)))) (let ((.cse56 ((_ extract 31 0) .cse61)) (.cse55 ((_ extract 63 32) .cse61))) (let ((.cse57 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse56) .cse9 .cse55)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse4 (let ((.cse54 (bvadd (concat .cse55 .cse56) ((_ sign_extend 32) .cse57)))) (concat ((_ extract 63 32) .cse54) ((_ extract 31 0) .cse54)))) (not (= (_ bv3 32) .cse57)) (not (= .cse58 (_ bv3 32))))))))))) (.cse24 (not (bvslt |c_ULTIMATE.start_main_~i~0#1| c_~N~0))) (.cse15 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|)) (.cse0 (bvule c_~N~0 (_ bv536870911 32))) (.cse1 (bvslt (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse26 (forall ((|v_ULTIMATE.start_main_~i~0#1_93| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse51 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_228))) (let ((.cse52 (select .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse50 (select v_ArrVal_228 (bvadd (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_93|) |ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse53 (bvadd (concat (select .cse52 .cse9) (select .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse50)))) (let ((.cse48 ((_ extract 31 0) .cse53)) (.cse47 ((_ extract 63 32) .cse53))) (let ((.cse49 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse48) .cse9 .cse47)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse4 (let ((.cse46 (bvadd (concat .cse47 .cse48) ((_ sign_extend 32) .cse49)))) (concat ((_ extract 63 32) .cse46) ((_ extract 31 0) .cse46)))) (not (= .cse50 (_ bv3 32))) (not (= .cse49 (_ bv3 32))))))))))) (.cse2 (not .cse25))) (and (or (and .cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (not .cse0) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (or .cse1 .cse2 .cse3) (or (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse13 (store .cse14 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse15) (_ bv3 32)))) (let ((.cse12 (select .cse13 |ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse11 (bvadd (concat (select .cse7 .cse9) (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse12)))) (let ((.cse10 ((_ extract 63 32) .cse11)) (.cse8 ((_ extract 31 0) .cse11))) (bvadd ((_ sign_extend 32) (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse8) .cse9 .cse10)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|))) (concat .cse10 .cse8)))))))) (concat ((_ extract 63 32) .cse5) ((_ extract 31 0) .cse5)))) (not (= (_ bv3 32) .cse12)))))) .cse1 .cse2) (or (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse23 (store .cse14 (bvadd |ULTIMATE.start_main_~a~0#1.offset| .cse15) (_ bv3 32)))) (let ((.cse16 (select .cse23 |ULTIMATE.start_main_~a~0#1.offset|))) (or (not (= (_ bv3 32) .cse16)) (= .cse4 (let ((.cse17 (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse23))) (let ((.cse21 (select .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse22 (bvadd ((_ sign_extend 32) .cse16) (concat (select .cse21 .cse9) (select .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse19 ((_ extract 31 0) .cse22)) (.cse18 ((_ extract 63 32) .cse22))) (bvadd (concat .cse18 .cse19) ((_ sign_extend 32) (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse19) .cse9 .cse18)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse17) ((_ extract 31 0) .cse17)))))))) .cse24 .cse25) (or .cse24 .cse25 .cse3) (not (bvsle c_~N~0 (_ bv0 32))) (or .cse24 .cse25 .cse26) (or .cse1 (let ((.cse33 ((_ sign_extend 32) (_ bv3 32)))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse15)) (_ bv3 32))) (= .cse4 (let ((.cse27 (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse31 (select .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse32 (bvadd .cse33 (concat (select .cse31 .cse9) (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse29 ((_ extract 31 0) .cse32)) (.cse28 ((_ extract 63 32) .cse32))) (bvadd (concat .cse28 .cse29) ((_ sign_extend 32) (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse29) .cse9 .cse28)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse27) ((_ extract 31 0) .cse27)))) (not (= (_ bv3 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|))))) (or (not (= (bvadd (_ bv4 32) .cse15) (_ bv0 32))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse15)) (_ bv3 32))) (= .cse4 (let ((.cse34 (let ((.cse37 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse38 (select .cse37 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse39 (bvadd ((_ sign_extend 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|)) (concat (select .cse38 .cse9) (select .cse38 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse36 ((_ extract 31 0) .cse39)) (.cse35 ((_ extract 63 32) .cse39))) (bvadd (concat .cse35 .cse36) ((_ sign_extend 32) (select (select (store .cse37 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse38 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse36) .cse9 .cse35)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse34) ((_ extract 31 0) .cse34)))))) (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse15)) (_ bv3 32))) (= .cse4 (let ((.cse40 (let ((.cse43 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse44 (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse45 (bvadd .cse33 (concat (select .cse44 .cse9) (select .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse42 ((_ extract 31 0) .cse45)) (.cse41 ((_ extract 63 32) .cse45))) (bvadd (concat .cse41 .cse42) ((_ sign_extend 32) (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse42) .cse9 .cse41)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse40) ((_ extract 31 0) .cse40)))))))))) .cse2) .cse0 (or .cse1 .cse26 .cse2)))) is different from false [2022-11-22 02:07:34,262 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse25 (bvslt (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse4 ((_ sign_extend 32) (bvmul c_~N~0 (_ bv3 32)))) (.cse9 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse14 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_104| (_ BitVec 32)) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse59 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_259))) (let ((.cse60 (select .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse58 (select v_ArrVal_259 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_104|))))) (let ((.cse61 (bvadd (concat (select .cse60 .cse9) (select .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse58)))) (let ((.cse56 ((_ extract 31 0) .cse61)) (.cse55 ((_ extract 63 32) .cse61))) (let ((.cse57 (select (select (store .cse59 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse60 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse56) .cse9 .cse55)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse4 (let ((.cse54 (bvadd (concat .cse55 .cse56) ((_ sign_extend 32) .cse57)))) (concat ((_ extract 63 32) .cse54) ((_ extract 31 0) .cse54)))) (not (= (_ bv3 32) .cse57)) (not (= .cse58 (_ bv3 32))))))))))) (.cse24 (not (bvslt |c_ULTIMATE.start_main_~i~0#1| c_~N~0))) (.cse15 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|)) (.cse0 (bvule c_~N~0 (_ bv536870911 32))) (.cse1 (bvslt (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse26 (forall ((|v_ULTIMATE.start_main_~i~0#1_93| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse51 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_228))) (let ((.cse52 (select .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse50 (select v_ArrVal_228 (bvadd (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_93|) |ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse53 (bvadd (concat (select .cse52 .cse9) (select .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse50)))) (let ((.cse48 ((_ extract 31 0) .cse53)) (.cse47 ((_ extract 63 32) .cse53))) (let ((.cse49 (select (select (store .cse51 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse52 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse48) .cse9 .cse47)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse4 (let ((.cse46 (bvadd (concat .cse47 .cse48) ((_ sign_extend 32) .cse49)))) (concat ((_ extract 63 32) .cse46) ((_ extract 31 0) .cse46)))) (not (= .cse50 (_ bv3 32))) (not (= .cse49 (_ bv3 32))))))))))) (.cse2 (not .cse25))) (and (or (and .cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (not .cse0) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (or .cse1 .cse2 .cse3) (or (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse13 (store .cse14 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse15) (_ bv3 32)))) (let ((.cse12 (select .cse13 |ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse11 (bvadd (concat (select .cse7 .cse9) (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse12)))) (let ((.cse10 ((_ extract 63 32) .cse11)) (.cse8 ((_ extract 31 0) .cse11))) (bvadd ((_ sign_extend 32) (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse8) .cse9 .cse10)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|))) (concat .cse10 .cse8)))))))) (concat ((_ extract 63 32) .cse5) ((_ extract 31 0) .cse5)))) (not (= (_ bv3 32) .cse12)))))) .cse1 .cse2) (or (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse23 (store .cse14 (bvadd |ULTIMATE.start_main_~a~0#1.offset| .cse15) (_ bv3 32)))) (let ((.cse16 (select .cse23 |ULTIMATE.start_main_~a~0#1.offset|))) (or (not (= (_ bv3 32) .cse16)) (= .cse4 (let ((.cse17 (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse23))) (let ((.cse21 (select .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse22 (bvadd ((_ sign_extend 32) .cse16) (concat (select .cse21 .cse9) (select .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse19 ((_ extract 31 0) .cse22)) (.cse18 ((_ extract 63 32) .cse22))) (bvadd (concat .cse18 .cse19) ((_ sign_extend 32) (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse21 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse19) .cse9 .cse18)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse17) ((_ extract 31 0) .cse17)))))))) .cse24 .cse25) (or .cse24 .cse25 .cse3) (not (bvsle c_~N~0 (_ bv0 32))) (or .cse24 .cse25 .cse26) (or .cse1 (let ((.cse33 ((_ sign_extend 32) (_ bv3 32)))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse15)) (_ bv3 32))) (= .cse4 (let ((.cse27 (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse31 (select .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse32 (bvadd .cse33 (concat (select .cse31 .cse9) (select .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse29 ((_ extract 31 0) .cse32)) (.cse28 ((_ extract 63 32) .cse32))) (bvadd (concat .cse28 .cse29) ((_ sign_extend 32) (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse29) .cse9 .cse28)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse27) ((_ extract 31 0) .cse27)))) (not (= (_ bv3 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|))))) (or (not (= (bvadd (_ bv4 32) .cse15) (_ bv0 32))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse15)) (_ bv3 32))) (= .cse4 (let ((.cse34 (let ((.cse37 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse38 (select .cse37 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse39 (bvadd ((_ sign_extend 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|)) (concat (select .cse38 .cse9) (select .cse38 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse36 ((_ extract 31 0) .cse39)) (.cse35 ((_ extract 63 32) .cse39))) (bvadd (concat .cse35 .cse36) ((_ sign_extend 32) (select (select (store .cse37 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse38 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse36) .cse9 .cse35)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse34) ((_ extract 31 0) .cse34)))))) (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse15)) (_ bv3 32))) (= .cse4 (let ((.cse40 (let ((.cse43 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse44 (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse45 (bvadd .cse33 (concat (select .cse44 .cse9) (select .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse42 ((_ extract 31 0) .cse45)) (.cse41 ((_ extract 63 32) .cse45))) (bvadd (concat .cse41 .cse42) ((_ sign_extend 32) (select (select (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse44 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse42) .cse9 .cse41)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse40) ((_ extract 31 0) .cse40)))))))))) .cse2) .cse0 (or .cse1 .cse26 .cse2)))) is different from true [2022-11-22 02:07:51,036 WARN L233 SmtUtils]: Spent 13.08s on a formula simplification. DAG size of input: 84 DAG size of output: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:07:53,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:08:02,409 WARN L233 SmtUtils]: Spent 7.60s on a formula simplification. DAG size of input: 77 DAG size of output: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:08:06,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:08:10,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:08:13,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:08:15,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:08:31,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:08:34,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:08:39,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:08:41,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:08:44,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:08:46,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:08:49,725 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse11 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse63 (concat ((_ extract 63 32) (_ bv0 64)) ((_ extract 31 0) (_ bv0 64)))) (.cse45 ((_ sign_extend 32) (_ bv3 32))) (.cse14 (select .cse26 .cse11)) (.cse58 (select .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse30 (concat .cse14 .cse58)) (.cse23 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse32 (bvslt |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse24 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|)) (.cse13 (bvadd (let ((.cse79 (bvadd .cse63 .cse45))) (concat ((_ extract 63 32) .cse79) ((_ extract 31 0) .cse79))) .cse45)) (.cse1 (bvslt (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse3 ((_ sign_extend 32) (bvmul c_~N~0 (_ bv3 32)))) (.cse2 (not (bvslt (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)))) (and (let ((.cse0 (bvule c_~N~0 (_ bv536870911 32)))) (or (and .cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (not .cse0) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))))) (or .cse1 .cse2 (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_104| (_ BitVec 32)) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_259))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse8 (select v_ArrVal_259 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_104|))))) (let ((.cse12 (bvadd (concat (select .cse10 .cse11) (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse8)))) (let ((.cse6 ((_ extract 31 0) .cse12)) (.cse5 ((_ extract 63 32) .cse12))) (let ((.cse7 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse6) .cse11 .cse5)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse4 (bvadd (concat .cse5 .cse6) ((_ sign_extend 32) .cse7)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4)))) (not (= (_ bv3 32) .cse7)) (not (= .cse8 (_ bv3 32))))))))))) (= ((_ extract 63 32) .cse13) .cse14) (= |c_ULTIMATE.start_main_~#sum~0#1.offset| (_ bv0 32)) (or (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse22 (store .cse23 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse24) (_ bv3 32)))) (let ((.cse21 (select .cse22 |ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse3 (let ((.cse15 (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse22))) (let ((.cse17 (select .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse20 (bvadd (concat (select .cse17 .cse11) (select .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse21)))) (let ((.cse19 ((_ extract 63 32) .cse20)) (.cse18 ((_ extract 31 0) .cse20))) (bvadd ((_ sign_extend 32) (select (select (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse18) .cse11 .cse19)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|))) (concat .cse19 .cse18)))))))) (concat ((_ extract 63 32) .cse15) ((_ extract 31 0) .cse15)))) (not (= (_ bv3 32) .cse21)))))) .cse1 .cse2) (let ((.cse31 (select .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse3 (let ((.cse25 (let ((.cse29 (bvadd .cse30 ((_ sign_extend 32) .cse31)))) (let ((.cse28 ((_ extract 63 32) .cse29)) (.cse27 ((_ extract 31 0) .cse29))) (bvadd ((_ sign_extend 32) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse27) .cse11 .cse28)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |c_ULTIMATE.start_main_~a~0#1.offset| (_ bv4 32)))) (concat .cse28 .cse27)))))) (concat ((_ extract 63 32) .cse25) ((_ extract 31 0) .cse25)))) .cse32 (not (= (_ bv3 32) .cse31)))) (bvslt (_ bv1 32) c_~N~0) (or (forall ((|ULTIMATE.start_main_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse33 (select .cse23 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|))))) (or (not (= (_ bv3 32) .cse33)) (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32))) (let ((.cse38 (bvadd ((_ sign_extend 32) .cse33) .cse30))) (let ((.cse37 ((_ extract 31 0) .cse38)) (.cse36 ((_ extract 63 32) .cse38))) (let ((.cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse37) .cse11 .cse36)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse34 (bvadd ((_ sign_extend 32) .cse35) (concat .cse36 .cse37)))) (concat ((_ extract 63 32) .cse34) ((_ extract 31 0) .cse34)))) (not (= (_ bv3 32) .cse35)))))))))) .cse32) (not (bvsle c_~N~0 (_ bv0 32))) (or .cse1 (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse24)) (_ bv3 32))) (= .cse3 (let ((.cse39 (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse43 (select .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse44 (bvadd .cse45 (concat (select .cse43 .cse11) (select .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse41 ((_ extract 31 0) .cse44)) (.cse40 ((_ extract 63 32) .cse44))) (bvadd (concat .cse40 .cse41) ((_ sign_extend 32) (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse43 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse41) .cse11 .cse40)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse39) ((_ extract 31 0) .cse39)))) (not (= (_ bv3 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|))))) (or (not (= (bvadd (_ bv4 32) .cse24) (_ bv0 32))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse24)) (_ bv3 32))) (= .cse3 (let ((.cse46 (let ((.cse49 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse50 (select .cse49 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse51 (bvadd ((_ sign_extend 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|)) (concat (select .cse50 .cse11) (select .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse48 ((_ extract 31 0) .cse51)) (.cse47 ((_ extract 63 32) .cse51))) (bvadd (concat .cse47 .cse48) ((_ sign_extend 32) (select (select (store .cse49 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse48) .cse11 .cse47)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse46) ((_ extract 31 0) .cse46)))))) (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse24)) (_ bv3 32))) (= .cse3 (let ((.cse52 (let ((.cse55 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse56 (select .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse57 (bvadd .cse45 (concat (select .cse56 .cse11) (select .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse54 ((_ extract 31 0) .cse57)) (.cse53 ((_ extract 63 32) .cse57))) (bvadd (concat .cse53 .cse54) ((_ sign_extend 32) (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse54) .cse11 .cse53)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse52) ((_ extract 31 0) .cse52))))))))) .cse2) (= .cse58 ((_ extract 31 0) .cse13)) (exists ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.base| (_ BitVec 32))) (let ((.cse64 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse60 (select .cse64 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|))) (.cse61 (select .cse64 |ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse59 (bvadd ((_ sign_extend 32) .cse60) (let ((.cse62 (bvadd ((_ sign_extend 32) .cse61) .cse63))) (concat ((_ extract 63 32) .cse62) ((_ extract 31 0) .cse62)))))) (and (not (= |ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (= .cse14 ((_ extract 63 32) .cse59)) (= (_ bv3 32) .cse60) (= (_ bv3 32) .cse61) (= ((_ extract 31 0) .cse59) .cse58)))))) (not (bvslt (_ bv2 32) c_~N~0)) (exists ((|v_ULTIMATE.start_main_~i~0#1_98| (_ BitVec 32)) (|ULTIMATE.start_main_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.base| (_ BitVec 32))) (let ((.cse65 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (and (not (= |ULTIMATE.start_main_~a~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (= (select .cse65 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_98|))) (_ bv3 32)) (= (_ bv3 32) (select .cse65 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|))))))) (or .cse1 (forall ((|v_ULTIMATE.start_main_~i~0#1_93| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse71 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_228))) (let ((.cse72 (select .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse70 (select v_ArrVal_228 (bvadd (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_93|) |ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse73 (bvadd (concat (select .cse72 .cse11) (select .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse70)))) (let ((.cse68 ((_ extract 31 0) .cse73)) (.cse67 ((_ extract 63 32) .cse73))) (let ((.cse69 (select (select (store .cse71 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse72 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse68) .cse11 .cse67)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse66 (bvadd (concat .cse67 .cse68) ((_ sign_extend 32) .cse69)))) (concat ((_ extract 63 32) .cse66) ((_ extract 31 0) .cse66)))) (not (= .cse70 (_ bv3 32))) (not (= .cse69 (_ bv3 32)))))))))) .cse2) (exists ((|#StackHeapBarrier| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_87| (_ BitVec 32)) (|ULTIMATE.start_main_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.base| (_ BitVec 32))) (let ((.cse78 (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse74 (select .cse78 (bvadd (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_87|) |ULTIMATE.start_main_~a~0#1.offset|))) (.cse76 (select .cse78 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|))))) (let ((.cse75 (bvadd (let ((.cse77 (bvadd ((_ sign_extend 32) .cse74) (concat (_ bv0 32) (_ bv0 32))))) (concat ((_ extract 63 32) .cse77) ((_ extract 31 0) .cse77))) ((_ sign_extend 32) .cse76)))) (and (= .cse74 (_ bv3 32)) (= .cse14 ((_ extract 63 32) .cse75)) (bvult |#StackHeapBarrier| |c_ULTIMATE.start_main_~#sum~0#1.base|) (bvult |ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|) (= .cse58 ((_ extract 31 0) .cse75)) (= (_ bv3 32) .cse76)))))))))) is different from true [2022-11-22 02:08:51,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:08:53,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:08:55,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:08:57,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:08:59,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:01,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:03,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:05,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:09:07,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:09,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:11,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:13,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:15,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:17,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:09:19,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:21,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:23,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:09:25,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:09:27,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:09:29,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:31,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:33,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:09:35,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:37,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:40,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 02:09:40,886 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse11 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse24 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse28 (concat (select .cse24 .cse11) (select .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse30 (bvslt |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse22 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|)) (.cse0 (bvule c_~N~0 (_ bv536870911 32))) (.cse1 (bvslt (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse3 ((_ sign_extend 32) (bvmul c_~N~0 (_ bv3 32)))) (.cse2 (not (bvslt (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)))) (and (or (and .cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (not .cse0) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (or .cse1 .cse2 (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_104| (_ BitVec 32)) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_259))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse8 (select v_ArrVal_259 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_104|))))) (let ((.cse12 (bvadd (concat (select .cse10 .cse11) (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse8)))) (let ((.cse6 ((_ extract 31 0) .cse12)) (.cse5 ((_ extract 63 32) .cse12))) (let ((.cse7 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse6) .cse11 .cse5)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse4 (bvadd (concat .cse5 .cse6) ((_ sign_extend 32) .cse7)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4)))) (not (= (_ bv3 32) .cse7)) (not (= .cse8 (_ bv3 32))))))))))) (or (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse20 (store .cse21 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22) (_ bv3 32)))) (let ((.cse19 (select .cse20 |ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse3 (let ((.cse13 (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse18 (bvadd (concat (select .cse15 .cse11) (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse19)))) (let ((.cse17 ((_ extract 63 32) .cse18)) (.cse16 ((_ extract 31 0) .cse18))) (bvadd ((_ sign_extend 32) (select (select (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse16) .cse11 .cse17)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|))) (concat .cse17 .cse16)))))))) (concat ((_ extract 63 32) .cse13) ((_ extract 31 0) .cse13)))) (not (= (_ bv3 32) .cse19)))))) .cse1 .cse2) (let ((.cse29 (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse3 (let ((.cse23 (let ((.cse27 (bvadd .cse28 ((_ sign_extend 32) .cse29)))) (let ((.cse26 ((_ extract 63 32) .cse27)) (.cse25 ((_ extract 31 0) .cse27))) (bvadd ((_ sign_extend 32) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse25) .cse11 .cse26)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |c_ULTIMATE.start_main_~a~0#1.offset| (_ bv4 32)))) (concat .cse26 .cse25)))))) (concat ((_ extract 63 32) .cse23) ((_ extract 31 0) .cse23)))) .cse30 (not (= (_ bv3 32) .cse29)))) (or (forall ((|ULTIMATE.start_main_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse31 (select .cse21 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|))))) (or (not (= (_ bv3 32) .cse31)) (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32))) (let ((.cse36 (bvadd ((_ sign_extend 32) .cse31) .cse28))) (let ((.cse35 ((_ extract 31 0) .cse36)) (.cse34 ((_ extract 63 32) .cse36))) (let ((.cse33 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse35) .cse11 .cse34)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse32 (bvadd ((_ sign_extend 32) .cse33) (concat .cse34 .cse35)))) (concat ((_ extract 63 32) .cse32) ((_ extract 31 0) .cse32)))) (not (= (_ bv3 32) .cse33)))))))))) .cse30) (not (bvsle c_~N~0 (_ bv0 32))) (or .cse1 (let ((.cse43 ((_ sign_extend 32) (_ bv3 32)))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse37 (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse42 (bvadd .cse43 (concat (select .cse41 .cse11) (select .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse39 ((_ extract 31 0) .cse42)) (.cse38 ((_ extract 63 32) .cse42))) (bvadd (concat .cse38 .cse39) ((_ sign_extend 32) (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse39) .cse11 .cse38)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse37) ((_ extract 31 0) .cse37)))) (not (= (_ bv3 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|))))) (or (not (= (bvadd (_ bv4 32) .cse22) (_ bv0 32))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse44 (let ((.cse47 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse48 (select .cse47 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse49 (bvadd ((_ sign_extend 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|)) (concat (select .cse48 .cse11) (select .cse48 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse46 ((_ extract 31 0) .cse49)) (.cse45 ((_ extract 63 32) .cse49))) (bvadd (concat .cse45 .cse46) ((_ sign_extend 32) (select (select (store .cse47 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse48 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse46) .cse11 .cse45)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse44) ((_ extract 31 0) .cse44)))))) (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse50 (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse54 (select .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse55 (bvadd .cse43 (concat (select .cse54 .cse11) (select .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse52 ((_ extract 31 0) .cse55)) (.cse51 ((_ extract 63 32) .cse55))) (bvadd (concat .cse51 .cse52) ((_ sign_extend 32) (select (select (store .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse52) .cse11 .cse51)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse50) ((_ extract 31 0) .cse50)))))))))) .cse2) .cse0 (or .cse1 (forall ((|v_ULTIMATE.start_main_~i~0#1_93| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse61 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_228))) (let ((.cse62 (select .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse60 (select v_ArrVal_228 (bvadd (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_93|) |ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse63 (bvadd (concat (select .cse62 .cse11) (select .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse60)))) (let ((.cse58 ((_ extract 31 0) .cse63)) (.cse57 ((_ extract 63 32) .cse63))) (let ((.cse59 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse58) .cse11 .cse57)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse56 (bvadd (concat .cse57 .cse58) ((_ sign_extend 32) .cse59)))) (concat ((_ extract 63 32) .cse56) ((_ extract 31 0) .cse56)))) (not (= .cse60 (_ bv3 32))) (not (= .cse59 (_ bv3 32)))))))))) .cse2)))) is different from false [2022-11-22 02:09:42,908 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse11 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse24 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse28 (concat (select .cse24 .cse11) (select .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse30 (bvslt |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse22 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|)) (.cse0 (bvule c_~N~0 (_ bv536870911 32))) (.cse1 (bvslt (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse3 ((_ sign_extend 32) (bvmul c_~N~0 (_ bv3 32)))) (.cse2 (not (bvslt (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)))) (and (or (and .cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (not .cse0) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (or .cse1 .cse2 (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_104| (_ BitVec 32)) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_259))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse8 (select v_ArrVal_259 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_104|))))) (let ((.cse12 (bvadd (concat (select .cse10 .cse11) (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse8)))) (let ((.cse6 ((_ extract 31 0) .cse12)) (.cse5 ((_ extract 63 32) .cse12))) (let ((.cse7 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse6) .cse11 .cse5)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse4 (bvadd (concat .cse5 .cse6) ((_ sign_extend 32) .cse7)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4)))) (not (= (_ bv3 32) .cse7)) (not (= .cse8 (_ bv3 32))))))))))) (or (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse20 (store .cse21 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22) (_ bv3 32)))) (let ((.cse19 (select .cse20 |ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse3 (let ((.cse13 (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse18 (bvadd (concat (select .cse15 .cse11) (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse19)))) (let ((.cse17 ((_ extract 63 32) .cse18)) (.cse16 ((_ extract 31 0) .cse18))) (bvadd ((_ sign_extend 32) (select (select (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse16) .cse11 .cse17)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|))) (concat .cse17 .cse16)))))))) (concat ((_ extract 63 32) .cse13) ((_ extract 31 0) .cse13)))) (not (= (_ bv3 32) .cse19)))))) .cse1 .cse2) (let ((.cse29 (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse3 (let ((.cse23 (let ((.cse27 (bvadd .cse28 ((_ sign_extend 32) .cse29)))) (let ((.cse26 ((_ extract 63 32) .cse27)) (.cse25 ((_ extract 31 0) .cse27))) (bvadd ((_ sign_extend 32) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse25) .cse11 .cse26)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |c_ULTIMATE.start_main_~a~0#1.offset| (_ bv4 32)))) (concat .cse26 .cse25)))))) (concat ((_ extract 63 32) .cse23) ((_ extract 31 0) .cse23)))) .cse30 (not (= (_ bv3 32) .cse29)))) (or (forall ((|ULTIMATE.start_main_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse31 (select .cse21 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|))))) (or (not (= (_ bv3 32) .cse31)) (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32))) (let ((.cse36 (bvadd ((_ sign_extend 32) .cse31) .cse28))) (let ((.cse35 ((_ extract 31 0) .cse36)) (.cse34 ((_ extract 63 32) .cse36))) (let ((.cse33 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse35) .cse11 .cse34)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse32 (bvadd ((_ sign_extend 32) .cse33) (concat .cse34 .cse35)))) (concat ((_ extract 63 32) .cse32) ((_ extract 31 0) .cse32)))) (not (= (_ bv3 32) .cse33)))))))))) .cse30) (not (bvsle c_~N~0 (_ bv0 32))) (or .cse1 (let ((.cse43 ((_ sign_extend 32) (_ bv3 32)))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse37 (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse42 (bvadd .cse43 (concat (select .cse41 .cse11) (select .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse39 ((_ extract 31 0) .cse42)) (.cse38 ((_ extract 63 32) .cse42))) (bvadd (concat .cse38 .cse39) ((_ sign_extend 32) (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse39) .cse11 .cse38)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse37) ((_ extract 31 0) .cse37)))) (not (= (_ bv3 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|))))) (or (not (= (bvadd (_ bv4 32) .cse22) (_ bv0 32))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse44 (let ((.cse47 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse48 (select .cse47 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse49 (bvadd ((_ sign_extend 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|)) (concat (select .cse48 .cse11) (select .cse48 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse46 ((_ extract 31 0) .cse49)) (.cse45 ((_ extract 63 32) .cse49))) (bvadd (concat .cse45 .cse46) ((_ sign_extend 32) (select (select (store .cse47 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse48 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse46) .cse11 .cse45)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse44) ((_ extract 31 0) .cse44)))))) (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse50 (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse54 (select .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse55 (bvadd .cse43 (concat (select .cse54 .cse11) (select .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse52 ((_ extract 31 0) .cse55)) (.cse51 ((_ extract 63 32) .cse55))) (bvadd (concat .cse51 .cse52) ((_ sign_extend 32) (select (select (store .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse52) .cse11 .cse51)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse50) ((_ extract 31 0) .cse50)))))))))) .cse2) .cse0 (or .cse1 (forall ((|v_ULTIMATE.start_main_~i~0#1_93| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse61 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_228))) (let ((.cse62 (select .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse60 (select v_ArrVal_228 (bvadd (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_93|) |ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse63 (bvadd (concat (select .cse62 .cse11) (select .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse60)))) (let ((.cse58 ((_ extract 31 0) .cse63)) (.cse57 ((_ extract 63 32) .cse63))) (let ((.cse59 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse58) .cse11 .cse57)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse56 (bvadd (concat .cse57 .cse58) ((_ sign_extend 32) .cse59)))) (concat ((_ extract 63 32) .cse56) ((_ extract 31 0) .cse56)))) (not (= .cse60 (_ bv3 32))) (not (= .cse59 (_ bv3 32)))))))))) .cse2)))) is different from true [2022-11-22 02:09:45,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-22 02:09:47,740 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse24 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse11 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse56 (select .cse24 .cse11)) (.cse58 (select .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse28 (concat .cse56 .cse58)) (.cse30 (bvslt |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse22 (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|)) (.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (bvslt (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)) (.cse3 ((_ sign_extend 32) (bvmul c_~N~0 (_ bv3 32)))) (.cse2 (not (bvslt (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|) c_~N~0)))) (and (let ((.cse0 (bvule c_~N~0 (_ bv536870911 32)))) (or (and .cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (not .cse0) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))))) (or .cse1 .cse2 (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_104| (_ BitVec 32)) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_259))) (let ((.cse10 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse8 (select v_ArrVal_259 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_104|))))) (let ((.cse12 (bvadd (concat (select .cse10 .cse11) (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse8)))) (let ((.cse6 ((_ extract 31 0) .cse12)) (.cse5 ((_ extract 63 32) .cse12))) (let ((.cse7 (select (select (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse6) .cse11 .cse5)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse4 (bvadd (concat .cse5 .cse6) ((_ sign_extend 32) .cse7)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4)))) (not (= (_ bv3 32) .cse7)) (not (= .cse8 (_ bv3 32))))))))))) (exists ((|#StackHeapBarrier| (_ BitVec 32))) (and (bvult |c_ULTIMATE.start_main_~a~0#1.base| |#StackHeapBarrier|) (bvult |#StackHeapBarrier| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (= |c_ULTIMATE.start_main_~#sum~0#1.offset| (_ bv0 32)) (or (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse20 (store .cse21 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22) (_ bv3 32)))) (let ((.cse19 (select .cse20 |ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse3 (let ((.cse13 (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse18 (bvadd (concat (select .cse15 .cse11) (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse19)))) (let ((.cse17 ((_ extract 63 32) .cse18)) (.cse16 ((_ extract 31 0) .cse18))) (bvadd ((_ sign_extend 32) (select (select (store .cse14 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse16) .cse11 .cse17)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|))) (concat .cse17 .cse16)))))))) (concat ((_ extract 63 32) .cse13) ((_ extract 31 0) .cse13)))) (not (= (_ bv3 32) .cse19)))))) .cse1 .cse2) (let ((.cse29 (select .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse3 (let ((.cse23 (let ((.cse27 (bvadd .cse28 ((_ sign_extend 32) .cse29)))) (let ((.cse26 ((_ extract 63 32) .cse27)) (.cse25 ((_ extract 31 0) .cse27))) (bvadd ((_ sign_extend 32) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse25) .cse11 .cse26)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |c_ULTIMATE.start_main_~a~0#1.offset| (_ bv4 32)))) (concat .cse26 .cse25)))))) (concat ((_ extract 63 32) .cse23) ((_ extract 31 0) .cse23)))) .cse30 (not (= (_ bv3 32) .cse29)))) (bvslt (_ bv1 32) c_~N~0) (or (forall ((|ULTIMATE.start_main_~i~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (let ((.cse31 (select .cse21 (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|))))) (or (not (= (_ bv3 32) .cse31)) (forall ((|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32))) (let ((.cse36 (bvadd ((_ sign_extend 32) .cse31) .cse28))) (let ((.cse35 ((_ extract 31 0) .cse36)) (.cse34 ((_ extract 63 32) .cse36))) (let ((.cse33 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse35) .cse11 .cse34)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse32 (bvadd ((_ sign_extend 32) .cse33) (concat .cse34 .cse35)))) (concat ((_ extract 63 32) .cse32) ((_ extract 31 0) .cse32)))) (not (= (_ bv3 32) .cse33)))))))))) .cse30) (not (bvsle c_~N~0 (_ bv0 32))) (or .cse1 (let ((.cse43 ((_ sign_extend 32) (_ bv3 32)))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse37 (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse42 (bvadd .cse43 (concat (select .cse41 .cse11) (select .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse39 ((_ extract 31 0) .cse42)) (.cse38 ((_ extract 63 32) .cse42))) (bvadd (concat .cse38 .cse39) ((_ sign_extend 32) (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse41 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse39) .cse11 .cse38)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse37) ((_ extract 31 0) .cse37)))) (not (= (_ bv3 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|))))) (or (not (= (bvadd (_ bv4 32) .cse22) (_ bv0 32))) (and (forall ((v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse44 (let ((.cse47 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse48 (select .cse47 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse49 (bvadd ((_ sign_extend 32) (select v_arrayElimArr_3 |ULTIMATE.start_main_~a~0#1.offset|)) (concat (select .cse48 .cse11) (select .cse48 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse46 ((_ extract 31 0) .cse49)) (.cse45 ((_ extract 63 32) .cse49))) (bvadd (concat .cse45 .cse46) ((_ sign_extend 32) (select (select (store .cse47 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse48 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse46) .cse11 .cse45)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse44) ((_ extract 31 0) .cse44)))))) (forall ((|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_arrayElimArr_3 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (select v_arrayElimArr_3 (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset| .cse22)) (_ bv3 32))) (= .cse3 (let ((.cse50 (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_arrayElimArr_3))) (let ((.cse54 (select .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse55 (bvadd .cse43 (concat (select .cse54 .cse11) (select .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse52 ((_ extract 31 0) .cse55)) (.cse51 ((_ extract 63 32) .cse55))) (bvadd (concat .cse51 .cse52) ((_ sign_extend 32) (select (select (store .cse53 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse54 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse52) .cse11 .cse51)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd (_ bv4 32) |ULTIMATE.start_main_~a~0#1.offset|)))))))))) (concat ((_ extract 63 32) .cse50) ((_ extract 31 0) .cse50)))))))))) .cse2) (not (bvslt (_ bv2 32) c_~N~0)) (exists ((|ULTIMATE.start_main_~i~0#1| (_ BitVec 32))) (let ((.cse59 (select .cse21 (bvadd |c_ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |ULTIMATE.start_main_~i~0#1|))))) (let ((.cse57 (bvadd ((_ sign_extend 32) .cse59) (concat (_ bv0 32) (_ bv0 32))))) (and (= .cse56 ((_ extract 63 32) .cse57)) (= .cse58 ((_ extract 31 0) .cse57)) (= (_ bv3 32) .cse59))))) (or .cse1 (forall ((|v_ULTIMATE.start_main_~i~0#1_93| (_ BitVec 32)) (|v_ULTIMATE.start_main_~i~0#1_90| (_ BitVec 32)) (|ULTIMATE.start_main_~a~0#1.offset| (_ BitVec 32)) (v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse65 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_228))) (let ((.cse66 (select .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse64 (select v_ArrVal_228 (bvadd (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_93|) |ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse67 (bvadd (concat (select .cse66 .cse11) (select .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) .cse64)))) (let ((.cse62 ((_ extract 31 0) .cse67)) (.cse61 ((_ extract 63 32) .cse67))) (let ((.cse63 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (store .cse66 |c_ULTIMATE.start_main_~#sum~0#1.offset| .cse62) .cse11 .cse61)) |c_ULTIMATE.start_main_~a~0#1.base|) (bvadd |ULTIMATE.start_main_~a~0#1.offset| (bvmul (_ bv4 32) |v_ULTIMATE.start_main_~i~0#1_90|))))) (or (= .cse3 (let ((.cse60 (bvadd (concat .cse61 .cse62) ((_ sign_extend 32) .cse63)))) (concat ((_ extract 63 32) .cse60) ((_ extract 31 0) .cse60)))) (not (= .cse64 (_ bv3 32))) (not (= .cse63 (_ bv3 32)))))))))) .cse2))))) is different from true