./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/poly2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/poly2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI --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 d98e92b0e397ee2afc9955ae7b4baaedb8be19fb7d6475412e7373cae81d62ab --- 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-5e519f3 [2022-11-03 02:20:39,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:20:39,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:20:39,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:20:39,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:20:39,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:20:39,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:20:39,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:20:39,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:20:39,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:20:39,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:20:39,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:20:39,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:20:39,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:20:39,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:20:39,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:20:39,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:20:39,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:20:39,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:20:39,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:20:39,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:20:39,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:20:39,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:20:39,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:20:39,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:20:39,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:20:39,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:20:39,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:20:39,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:20:39,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:20:39,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:20:39,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:20:39,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:20:39,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:20:39,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:20:39,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:20:39,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:20:39,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:20:39,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:20:39,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:20:39,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:20:39,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:20:39,837 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:20:39,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:20:39,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:20:39,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:20:39,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:20:39,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:20:39,846 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:20:39,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:20:39,847 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:20:39,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:20:39,849 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:20:39,849 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:20:39,849 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:20:39,849 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:20:39,850 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:20:39,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:20:39,850 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:20:39,851 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:20:39,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:20:39,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:20:39,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:20:39,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:20:39,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:20:39,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:20:39,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:20:39,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:20:39,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:20:39,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:20:39,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:20:39,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:20:39,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:20:39,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:20:39,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:20:39,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:20:39,858 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:20:39,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:20:39,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:20:39,859 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:20:39,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:20:39,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:20:39,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:20:39,860 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_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d98e92b0e397ee2afc9955ae7b4baaedb8be19fb7d6475412e7373cae81d62ab [2022-11-03 02:20:40,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:20:40,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:20:40,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:20:40,265 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:20:40,266 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:20:40,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/array-tiling/poly2.c [2022-11-03 02:20:40,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/data/812de6915/3acbd510282642429b5766051dc77fe5/FLAGf359d90fc [2022-11-03 02:20:40,952 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:20:40,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/sv-benchmarks/c/array-tiling/poly2.c [2022-11-03 02:20:40,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/data/812de6915/3acbd510282642429b5766051dc77fe5/FLAGf359d90fc [2022-11-03 02:20:41,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/data/812de6915/3acbd510282642429b5766051dc77fe5 [2022-11-03 02:20:41,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:20:41,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:20:41,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:20:41,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:20:41,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:20:41,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b5a5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41, skipping insertion in model container [2022-11-03 02:20:41,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:20:41,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:20:41,561 WARN L230 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_62540aaa-3628-4f64-8d86-e0056898ba00/sv-benchmarks/c/array-tiling/poly2.c[396,409] [2022-11-03 02:20:41,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:20:41,601 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:20:41,616 WARN L230 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_62540aaa-3628-4f64-8d86-e0056898ba00/sv-benchmarks/c/array-tiling/poly2.c[396,409] [2022-11-03 02:20:41,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:20:41,643 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:20:41,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41 WrapperNode [2022-11-03 02:20:41,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:20:41,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:20:41,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:20:41,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:20:41,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,690 INFO L138 Inliner]: procedures = 16, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-11-03 02:20:41,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:20:41,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:20:41,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:20:41,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:20:41,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,727 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:20:41,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:20:41,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:20:41,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:20:41,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (1/1) ... [2022-11-03 02:20:41,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:20:41,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:41,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:20:41,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:20:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:20:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:20:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:20:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:20:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:20:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:20:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:20:41,892 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:20:41,894 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:20:42,107 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:20:42,163 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:20:42,163 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:20:42,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:20:42 BoogieIcfgContainer [2022-11-03 02:20:42,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:20:42,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:20:42,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:20:42,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:20:42,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:20:41" (1/3) ... [2022-11-03 02:20:42,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b084535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:20:42, skipping insertion in model container [2022-11-03 02:20:42,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:20:41" (2/3) ... [2022-11-03 02:20:42,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b084535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:20:42, skipping insertion in model container [2022-11-03 02:20:42,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:20:42" (3/3) ... [2022-11-03 02:20:42,191 INFO L112 eAbstractionObserver]: Analyzing ICFG poly2.c [2022-11-03 02:20:42,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:20:42,234 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:20:42,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:20:42,322 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;@5a34d052, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:20:42,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:20:42,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) [2022-11-03 02:20:42,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:20:42,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:42,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:42,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:42,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:42,375 INFO L85 PathProgramCache]: Analyzing trace with hash 401229897, now seen corresponding path program 1 times [2022-11-03 02:20:42,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:42,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805190312] [2022-11-03 02:20:42,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:42,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:42,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:42,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805190312] [2022-11-03 02:20:42,631 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:20:42,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908337721] [2022-11-03 02:20:42,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:42,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:42,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:42,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:42,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:20:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:42,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:20:42,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:20:42,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:20:42,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908337721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:20:42,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:20:42,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:20:42,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494532680] [2022-11-03 02:20:42,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:20:42,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:20:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:42,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:20:42,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:20:42,959 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:20:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:43,040 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-11-03 02:20:43,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:20:43,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-03 02:20:43,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:43,067 INFO L225 Difference]: With dead ends: 20 [2022-11-03 02:20:43,067 INFO L226 Difference]: Without dead ends: 10 [2022-11-03 02:20:43,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:20:43,078 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:43,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:20:43,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-03 02:20:43,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-03 02:20:43,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 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) [2022-11-03 02:20:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-03 02:20:43,125 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2022-11-03 02:20:43,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:43,126 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-03 02:20:43,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:20:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-03 02:20:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:20:43,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:43,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:43,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:20:43,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 02:20:43,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:43,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash -701699567, now seen corresponding path program 1 times [2022-11-03 02:20:43,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:43,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917615608] [2022-11-03 02:20:43,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:43,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:43,371 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:20:43,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465326308] [2022-11-03 02:20:43,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:43,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:43,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:43,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:43,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:20:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:43,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:20:43,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:20:43,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:20:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:20:43,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:43,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917615608] [2022-11-03 02:20:43,575 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:20:43,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465326308] [2022-11-03 02:20:43,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465326308] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:20:43,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [83480271] [2022-11-03 02:20:43,600 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:20:43,601 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:20:43,605 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:20:43,611 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:20:43,612 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:20:43,782 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:20:43,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:20:43,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:20:43,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:20:44,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:44,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:44,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:44,212 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:20:44,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:20:44,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:20:44,400 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:20:44,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [83480271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:20:44,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:20:44,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 9 [2022-11-03 02:20:44,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801478000] [2022-11-03 02:20:44,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:20:44,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:20:44,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:44,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:20:44,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:20:44,521 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:20:44,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:44,723 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-03 02:20:44,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:20:44,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 [2022-11-03 02:20:44,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:44,724 INFO L225 Difference]: With dead ends: 21 [2022-11-03 02:20:44,725 INFO L226 Difference]: Without dead ends: 16 [2022-11-03 02:20:44,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:20:44,727 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:44,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:20:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-03 02:20:44,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2022-11-03 02:20:44,733 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) [2022-11-03 02:20:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-03 02:20:44,738 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2022-11-03 02:20:44,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:44,739 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-03 02:20:44,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:20:44,740 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-03 02:20:44,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:20:44,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:44,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:44,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:20:44,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:44,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:44,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:44,963 INFO L85 PathProgramCache]: Analyzing trace with hash -278806308, now seen corresponding path program 1 times [2022-11-03 02:20:44,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:44,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797668002] [2022-11-03 02:20:44,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:44,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:44,978 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:20:44,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426126654] [2022-11-03 02:20:44,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:44,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:44,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:44,981 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:44,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:20:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:45,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:20:45,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:20:45,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:20:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:20:45,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:45,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797668002] [2022-11-03 02:20:45,091 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:20:45,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426126654] [2022-11-03 02:20:45,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426126654] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:20:45,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [447701920] [2022-11-03 02:20:45,095 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:20:45,095 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:20:45,096 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:20:45,096 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:20:45,096 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:20:45,192 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:20:45,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:20:45,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:20:45,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:20:45,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:45,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:20:45,429 INFO L356 Elim1Store]: treesize reduction 127, result has 24.0 percent of original size [2022-11-03 02:20:45,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 265 treesize of output 287 [2022-11-03 02:20:45,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:20:45,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:20:45,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:45,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:45,732 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:20:45,992 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '228#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:20:45,992 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:20:45,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:20:45,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-03 02:20:45,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746722811] [2022-11-03 02:20:45,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:20:45,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:20:45,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:45,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:20:45,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:20:45,995 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2022-11-03 02:20:46,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:46,032 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2022-11-03 02:20:46,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:20:46,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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 [2022-11-03 02:20:46,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:46,033 INFO L225 Difference]: With dead ends: 19 [2022-11-03 02:20:46,033 INFO L226 Difference]: Without dead ends: 12 [2022-11-03 02:20:46,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:20:46,035 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:46,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:20:46,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-03 02:20:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-03 02:20:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 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) [2022-11-03 02:20:46,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-03 02:20:46,042 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2022-11-03 02:20:46,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:46,043 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-03 02:20:46,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2022-11-03 02:20:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-03 02:20:46,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:20:46,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:46,044 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:46,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:20:46,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:46,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:46,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash 662900900, now seen corresponding path program 2 times [2022-11-03 02:20:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:46,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902638471] [2022-11-03 02:20:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:46,289 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:20:46,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954144921] [2022-11-03 02:20:46,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:20:46,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:46,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:46,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:46,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:20:46,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:20:46,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:20:46,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:20:46,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:20:46,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:20:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:20:46,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:46,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902638471] [2022-11-03 02:20:46,456 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:20:46,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954144921] [2022-11-03 02:20:46,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954144921] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:20:46,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2037977699] [2022-11-03 02:20:46,462 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:20:46,462 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:20:46,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:20:46,463 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:20:46,463 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:20:46,570 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:20:46,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:20:46,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:20:46,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:20:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:46,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:20:46,792 INFO L356 Elim1Store]: treesize reduction 127, result has 24.0 percent of original size [2022-11-03 02:20:46,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 265 treesize of output 287 [2022-11-03 02:20:46,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:20:46,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:46,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:46,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:46,981 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:20:47,221 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '340#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:20:47,222 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:20:47,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:20:47,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2022-11-03 02:20:47,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378020874] [2022-11-03 02:20:47,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:20:47,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:20:47,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:47,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:20:47,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:20:47,223 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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) [2022-11-03 02:20:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:47,300 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-03 02:20:47,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:20:47,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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 10 [2022-11-03 02:20:47,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:47,301 INFO L225 Difference]: With dead ends: 28 [2022-11-03 02:20:47,301 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 02:20:47,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:20:47,303 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:47,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 13 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:20:47,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 02:20:47,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 13. [2022-11-03 02:20:47,308 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) [2022-11-03 02:20:47,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-03 02:20:47,309 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-11-03 02:20:47,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:47,309 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-03 02:20:47,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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) [2022-11-03 02:20:47,310 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-03 02:20:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:20:47,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:47,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:47,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:20:47,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:47,528 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:47,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:47,528 INFO L85 PathProgramCache]: Analyzing trace with hash -925864791, now seen corresponding path program 3 times [2022-11-03 02:20:47,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:47,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972133500] [2022-11-03 02:20:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:47,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:47,547 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:20:47,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453858071] [2022-11-03 02:20:47,551 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:20:47,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:47,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:47,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:47,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:20:47,686 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:20:47,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:20:47,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 02:20:47,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:47,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 72 treesize of output 67 [2022-11-03 02:20:47,746 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:20:47,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-03 02:20:47,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:47,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 02:20:47,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-03 02:20:47,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:47,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 02:20:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:20:47,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:20:48,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:20:48,586 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:20:48,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 96 [2022-11-03 02:20:48,658 INFO L356 Elim1Store]: treesize reduction 23, result has 39.5 percent of original size [2022-11-03 02:20:48,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 81 [2022-11-03 02:20:48,740 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:20:48,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 114 treesize of output 112 [2022-11-03 02:20:48,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:20:48,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:48,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972133500] [2022-11-03 02:20:48,827 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:20:48,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453858071] [2022-11-03 02:20:48,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453858071] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:20:48,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [563291683] [2022-11-03 02:20:48,829 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:20:48,830 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:20:48,830 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:20:48,830 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:20:48,830 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:20:48,921 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:20:48,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:20:48,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:20:48,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:20:49,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:49,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:49,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:49,102 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:20:49,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:20:49,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:20:49,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:49,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:49,246 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:49,275 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:20:49,586 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '482#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:20:49,586 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:20:49,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:20:49,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-03 02:20:49,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966098746] [2022-11-03 02:20:49,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:20:49,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 02:20:49,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:49,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 02:20:49,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:20:49,589 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 17 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) [2022-11-03 02:20:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:49,889 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-03 02:20:49,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:20:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 17 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) Word has length 11 [2022-11-03 02:20:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:49,892 INFO L225 Difference]: With dead ends: 33 [2022-11-03 02:20:49,892 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 02:20:49,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:20:49,893 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:49,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 0 Unknown, 37 Unchecked, 0.2s Time] [2022-11-03 02:20:49,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 02:20:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20. [2022-11-03 02:20:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 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) [2022-11-03 02:20:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2022-11-03 02:20:49,906 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 11 [2022-11-03 02:20:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:49,907 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-11-03 02:20:49,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 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) [2022-11-03 02:20:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-11-03 02:20:49,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:20:49,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:49,909 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:49,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-03 02:20:50,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:50,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:50,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:50,115 INFO L85 PathProgramCache]: Analyzing trace with hash 2111629937, now seen corresponding path program 4 times [2022-11-03 02:20:50,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:50,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304695173] [2022-11-03 02:20:50,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:50,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:50,151 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:20:50,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849722206] [2022-11-03 02:20:50,161 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:20:50,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:50,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:50,166 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:50,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:20:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:50,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:20:50,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:20:50,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:20:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:20:50,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:50,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304695173] [2022-11-03 02:20:50,377 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:20:50,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849722206] [2022-11-03 02:20:50,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849722206] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:20:50,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [20529206] [2022-11-03 02:20:50,380 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:20:50,381 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:20:50,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:20:50,381 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:20:50,381 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:20:50,454 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:20:50,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:20:50,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:20:50,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:20:50,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:50,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:50,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:50,611 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:20:50,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:20:50,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:20:50,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:50,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:50,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:20:50,762 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:20:51,085 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '656#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:20:51,085 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:20:51,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:20:51,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-03 02:20:51,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198849753] [2022-11-03 02:20:51,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:20:51,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:20:51,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:51,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:20:51,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:20:51,087 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2022-11-03 02:20:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:51,362 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2022-11-03 02:20:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:20:51,363 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:20:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:51,364 INFO L225 Difference]: With dead ends: 50 [2022-11-03 02:20:51,364 INFO L226 Difference]: Without dead ends: 45 [2022-11-03 02:20:51,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:20:51,365 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 50 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:51,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 64 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:20:51,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-03 02:20:51,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 21. [2022-11-03 02:20:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 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) [2022-11-03 02:20:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-11-03 02:20:51,376 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2022-11-03 02:20:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:51,376 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-11-03 02:20:51,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2022-11-03 02:20:51,377 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-03 02:20:51,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:20:51,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:51,378 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:51,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:20:51,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 02:20:51,598 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:51,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:51,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1035062396, now seen corresponding path program 5 times [2022-11-03 02:20:51,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:51,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243702413] [2022-11-03 02:20:51,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:51,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:51,620 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:20:51,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750746826] [2022-11-03 02:20:51,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:20:51,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:20:51,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:20:51,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:20:51,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:20:51,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:20:51,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:20:51,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-03 02:20:51,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:20:51,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:20:51,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:51,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 02:20:52,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:52,042 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 02:20:52,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 118 treesize of output 107 [2022-11-03 02:20:52,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:20:52,138 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 161 [2022-11-03 02:20:52,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 22 [2022-11-03 02:20:52,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:52,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 02:20:52,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 57 treesize of output 50 [2022-11-03 02:20:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:52,318 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-03 02:20:52,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-11-03 02:20:52,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 12 [2022-11-03 02:20:53,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 56 treesize of output 48 [2022-11-03 02:20:53,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:20:53,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 26 treesize of output 20 [2022-11-03 02:20:53,470 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:20:53,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:20:55,710 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~SIZE~0) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) is different from false [2022-11-03 02:20:57,938 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse9 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse5 (<= .cse9 2147483647)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (* .cse9 8))) (and (or (let ((.cse1 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse1 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse1 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) .cse5) (or (not .cse5) (let ((.cse6 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse6 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse8 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse6 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))))))) is different from false [2022-11-03 02:21:00,407 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse6 (<= .cse21 2147483647)) (.cse20 (* .cse21 8)) (.cse19 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (<= .cse19 2147483647)) (.cse7 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse3 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (not .cse6)) (.cse10 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse12 (* .cse19 8))) (and (or (not .cse0) (let ((.cse2 (let ((.cse11 (+ .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse10 .cse11 (+ (- 2) (select .cse10 .cse11)))))) (and (or (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1) c_~SIZE~0) (= (select (store (store .cse2 .cse3 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (= (select (store (store .cse2 .cse3 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) .cse5) (or .cse6 (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse8 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse2 .cse7 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (= (select (store (store .cse2 .cse7 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))))))) (or .cse0 (let ((.cse14 (let ((.cse18 (+ .cse12 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse10 .cse18 (+ (- 2) (select .cse10 .cse18)))))) (and (or .cse6 (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse13 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13)) (= (select (store (store .cse14 .cse7 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse15 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store (store .cse14 .cse7 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))) (or (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1) c_~SIZE~0) (= (select (store (store .cse14 .cse3 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse17 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store .cse14 .cse3 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))) .cse5)))))))) is different from false [2022-11-03 02:21:17,643 WARN L234 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 97 DAG size of output: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:21:17,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:21:17,725 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:21:17,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 49 treesize of output 96 [2022-11-03 02:21:18,333 INFO L356 Elim1Store]: treesize reduction 23, result has 39.5 percent of original size [2022-11-03 02:21:18,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 514 treesize of output 474 [2022-11-03 02:21:18,999 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:21:18,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 430 treesize of output 424 [2022-11-03 02:21:19,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2022-11-03 02:21:19,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:19,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243702413] [2022-11-03 02:21:19,321 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:21:19,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750746826] [2022-11-03 02:21:19,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750746826] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:21:19,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [737879030] [2022-11-03 02:21:19,323 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:21:19,324 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:21:19,324 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:21:19,324 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:21:19,324 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:21:19,397 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:21:19,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:21:19,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:21:19,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:21:19,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:19,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:19,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:19,552 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:21:19,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:21:19,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:21:19,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:21:19,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:21:19,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:21:19,689 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:21:22,708 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '877#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:21:22,708 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:21:22,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:21:22,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2022-11-03 02:21:22,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482214708] [2022-11-03 02:21:22,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:21:22,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 02:21:22,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:22,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 02:21:22,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=454, Unknown=5, NotChecked=138, Total=702 [2022-11-03 02:21:22,711 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 22 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) [2022-11-03 02:21:24,630 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse6 (<= .cse21 2147483647)) (.cse20 (* .cse21 8)) (.cse19 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (<= .cse19 2147483647)) (.cse7 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse3 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (not .cse6)) (.cse10 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse12 (* .cse19 8))) (and (or (not .cse0) (let ((.cse2 (let ((.cse11 (+ .cse12 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse10 .cse11 (+ (- 2) (select .cse10 .cse11)))))) (and (or (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1) c_~SIZE~0) (= (select (store (store .cse2 .cse3 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (= (select (store (store .cse2 .cse3 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) .cse5) (or .cse6 (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse8 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse2 .cse7 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (= (select (store (store .cse2 .cse7 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))))))) (<= c_~MAX~0 100000) (<= c_~SIZE~0 2147483647) (or .cse0 (let ((.cse14 (let ((.cse18 (+ .cse12 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse10 .cse18 (+ (- 2) (select .cse10 .cse18)))))) (and (or .cse6 (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse13 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13)) (= (select (store (store .cse14 .cse7 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse15 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store (store .cse14 .cse7 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))) (or (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1) c_~SIZE~0) (= (select (store (store .cse14 .cse3 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse17 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store .cse14 .cse3 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))) .cse5)))))))) is different from false [2022-11-03 02:21:48,412 WARN L234 SmtUtils]: Spent 17.80s on a formula simplification. DAG size of input: 118 DAG size of output: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:21:49,729 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse9 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse5 (<= .cse9 2147483647)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (* .cse9 8))) (and (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)))) 0) (or (let ((.cse1 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse1 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse1 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) .cse5) (<= c_~SIZE~0 3) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (< 2 c_~SIZE~0) (or (not .cse5) (let ((.cse6 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse6 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_130 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse8 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse6 v_ArrVal_130) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))))) (= |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-11-03 02:21:51,236 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~SIZE~0) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_132 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_132) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (= 0 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)) (<= c_~SIZE~0 3) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (< 2 c_~SIZE~0))) is different from false [2022-11-03 02:21:51,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:51,283 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-11-03 02:21:51,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 02:21:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 22 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) Word has length 13 [2022-11-03 02:21:51,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:51,286 INFO L225 Difference]: With dead ends: 41 [2022-11-03 02:21:51,286 INFO L226 Difference]: Without dead ends: 39 [2022-11-03 02:21:51,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 55.3s TimeCoverageRelationStatistics Valid=163, Invalid=722, Unknown=9, NotChecked=366, Total=1260 [2022-11-03 02:21:51,288 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:51,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 42 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 95 Unchecked, 0.1s Time] [2022-11-03 02:21:51,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-03 02:21:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 27. [2022-11-03 02:21:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:51,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-11-03 02:21:51,312 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 13 [2022-11-03 02:21:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:51,313 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-11-03 02:21:51,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 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) [2022-11-03 02:21:51,313 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-11-03 02:21:51,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:21:51,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:51,314 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:51,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-03 02:21:51,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 02:21:51,520 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:51,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:51,521 INFO L85 PathProgramCache]: Analyzing trace with hash -728432631, now seen corresponding path program 6 times [2022-11-03 02:21:51,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:51,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387132575] [2022-11-03 02:21:51,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:51,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:51,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:21:51,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779094873] [2022-11-03 02:21:51,538 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:21:51,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:51,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:51,553 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:51,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 02:21:51,623 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:21:51,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:21:51,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:21:51,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:51,694 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:21:51,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:21:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:21:51,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:51,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387132575] [2022-11-03 02:21:51,750 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:21:51,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779094873] [2022-11-03 02:21:51,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779094873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:21:51,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1086233919] [2022-11-03 02:21:51,752 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:21:51,752 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:21:51,753 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:21:51,753 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:21:51,753 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:21:51,846 INFO L356 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-11-03 02:21:51,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-11-03 02:21:51,916 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:21:51,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:21:51,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:21:52,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:52,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:52,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:52,070 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:21:52,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:21:52,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:21:52,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:21:52,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:21:52,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:21:52,227 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:21:52,511 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1100#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:21:52,512 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:21:52,512 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:21:52,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-03 02:21:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273581274] [2022-11-03 02:21:52,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:21:52,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:21:52,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:52,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:21:52,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:21:52,514 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) [2022-11-03 02:21:52,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:52,670 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2022-11-03 02:21:52,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:21:52,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) Word has length 13 [2022-11-03 02:21:52,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:52,672 INFO L225 Difference]: With dead ends: 60 [2022-11-03 02:21:52,672 INFO L226 Difference]: Without dead ends: 49 [2022-11-03 02:21:52,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:21:52,673 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 38 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:52,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 31 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:21:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-03 02:21:52,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 32. [2022-11-03 02:21:52,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:52,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-11-03 02:21:52,695 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 13 [2022-11-03 02:21:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:52,696 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-03 02:21:52,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) [2022-11-03 02:21:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2022-11-03 02:21:52,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:21:52,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:52,697 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:52,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-03 02:21:52,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:52,914 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:52,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:52,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2021206993, now seen corresponding path program 7 times [2022-11-03 02:21:52,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:52,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618618488] [2022-11-03 02:21:52,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:52,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:52,931 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:21:52,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505904058] [2022-11-03 02:21:52,935 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:21:52,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:52,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:52,937 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:52,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 02:21:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:53,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 02:21:53,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:53,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:21:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:53,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:21:53,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618618488] [2022-11-03 02:21:53,212 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:21:53,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505904058] [2022-11-03 02:21:53,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505904058] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:21:53,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1082874323] [2022-11-03 02:21:53,214 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:21:53,214 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:21:53,214 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:21:53,215 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:21:53,215 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:21:53,284 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:21:53,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:21:53,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:21:53,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:21:53,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:53,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:53,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:21:53,422 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:21:53,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:21:53,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:21:53,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:21:53,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:21:53,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:21:53,553 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:21:53,847 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1347#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:21:53,847 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:21:53,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:21:53,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-03 02:21:53,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333223655] [2022-11-03 02:21:53,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:21:53,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:21:53,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:21:53,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:21:53,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:21:53,849 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 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) [2022-11-03 02:21:54,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:21:54,171 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2022-11-03 02:21:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:21:54,172 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:21:54,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:21:54,173 INFO L225 Difference]: With dead ends: 81 [2022-11-03 02:21:54,173 INFO L226 Difference]: Without dead ends: 73 [2022-11-03 02:21:54,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:21:54,174 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 87 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:21:54,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 61 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:21:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-03 02:21:54,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 42. [2022-11-03 02:21:54,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:21:54,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2022-11-03 02:21:54,206 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 14 [2022-11-03 02:21:54,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:21:54,207 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2022-11-03 02:21:54,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 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) [2022-11-03 02:21:54,207 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2022-11-03 02:21:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:21:54,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:21:54,208 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:21:54,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:21:54,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:54,422 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:21:54,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:21:54,422 INFO L85 PathProgramCache]: Analyzing trace with hash -152789324, now seen corresponding path program 1 times [2022-11-03 02:21:54,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:21:54,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514337517] [2022-11-03 02:21:54,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:54,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:21:54,437 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:21:54,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699048156] [2022-11-03 02:21:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:21:54,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:21:54,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:21:54,441 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:21:54,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 02:21:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:21:54,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:21:54,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:21:54,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-11-03 02:21:54,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 120 treesize of output 109 [2022-11-03 02:21:54,662 INFO L356 Elim1Store]: treesize reduction 49, result has 2.0 percent of original size [2022-11-03 02:21:54,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 108 treesize of output 168 [2022-11-03 02:21:54,684 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:21:54,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 31 treesize of output 15 [2022-11-03 02:21:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:21:54,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:21:55,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:21:55,456 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:21:55,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 96 [2022-11-03 02:21:55,512 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 02:21:55,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 50 [2022-11-03 02:21:55,545 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:21:55,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 24 [2022-11-03 02:22:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:05,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:05,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514337517] [2022-11-03 02:22:05,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:05,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699048156] [2022-11-03 02:22:05,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699048156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:22:05,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [35431864] [2022-11-03 02:22:05,614 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:22:05,614 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:05,614 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:05,615 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:05,615 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:05,691 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:22:05,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:22:05,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:22:05,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:22:05,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:05,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:05,858 INFO L356 Elim1Store]: treesize reduction 127, result has 24.0 percent of original size [2022-11-03 02:22:05,859 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 265 treesize of output 287 [2022-11-03 02:22:05,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:22:05,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:22:05,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:22:06,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:22:06,154 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:22:06,680 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1651#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:22:06,680 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:22:06,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:22:06,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2022-11-03 02:22:06,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431157264] [2022-11-03 02:22:06,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:22:06,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 02:22:06,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:06,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 02:22:06,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:22:06,683 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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) [2022-11-03 02:22:12,196 WARN L234 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:22:12,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:22:12,358 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2022-11-03 02:22:12,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:22:12,358 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:22:12,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:22:12,359 INFO L225 Difference]: With dead ends: 57 [2022-11-03 02:22:12,359 INFO L226 Difference]: Without dead ends: 47 [2022-11-03 02:22:12,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=130, Invalid=800, Unknown=0, NotChecked=0, Total=930 [2022-11-03 02:22:12,361 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:22:12,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 64 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 140 Invalid, 0 Unknown, 21 Unchecked, 0.3s Time] [2022-11-03 02:22:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-03 02:22:12,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 37. [2022-11-03 02:22:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:12,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2022-11-03 02:22:12,380 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 14 [2022-11-03 02:22:12,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:22:12,381 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2022-11-03 02:22:12,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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) [2022-11-03 02:22:12,381 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2022-11-03 02:22:12,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:22:12,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:22:12,382 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:22:12,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:22:12,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:22:12,583 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:22:12,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:22:12,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1360689417, now seen corresponding path program 8 times [2022-11-03 02:22:12,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:22:12,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686893083] [2022-11-03 02:22:12,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:22:12,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:22:12,607 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:22:12,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889208705] [2022-11-03 02:22:12,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:22:12,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:22:12,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:22:12,610 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:22:12,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 02:22:12,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:22:12,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:22:12,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-03 02:22:12,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:22:13,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 72 treesize of output 67 [2022-11-03 02:22:13,027 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:22:13,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-03 02:22:13,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:22:13,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:22:13,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:22:13,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-03 02:22:13,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:22:13,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:22:13,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 65 treesize of output 58 [2022-11-03 02:22:13,335 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-03 02:22:13,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 111 [2022-11-03 02:22:13,397 INFO L356 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-11-03 02:22:13,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 85 treesize of output 36 [2022-11-03 02:22:13,550 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:22:13,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:22:15,790 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((v_ArrVal_269 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_269 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))) is different from false [2022-11-03 02:22:18,001 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse6 (<= .cse10 2147483647)) (.cse9 (* .cse10 8))) (let ((.cse3 (+ .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse0 (not .cse6)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse5 (+ .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or .cse0 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1)) (= (select (store (store .cse2 .cse3 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (= (select (store (store .cse2 .cse5 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse6) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (= (select (store (store .cse2 .cse3 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse0) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse8 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse2 .cse5 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))))))) is different from false [2022-11-03 02:22:20,478 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse20 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse18 (* .cse20 8)) (.cse5 (<= .cse20 2147483647)) (.cse0 (<= .cse19 2147483647)) (.cse17 (* .cse19 8))) (let ((.cse4 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse14 (not .cse0)) (.cse6 (not .cse5)) (.cse8 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse12 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse0 (and (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1)) (= (select (store (store (store .cse2 .cse3 v_ArrVal_266) .cse4 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse5) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (= (select (store (store (store .cse2 .cse8 v_ArrVal_266) .cse4 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))))) (or .cse0 (and (or .cse5 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse2 .cse3 v_ArrVal_266) .cse4 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse10 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store .cse2 .cse8 v_ArrVal_266) .cse4 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse6))) (or (and (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11)) (= (select (store (store (store .cse2 .cse3 v_ArrVal_266) .cse12 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse5) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse13 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store .cse2 .cse8 v_ArrVal_266) .cse12 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) .cse14) (or .cse14 (and (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse15 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= 0 (select (store (store (store .cse2 .cse8 v_ArrVal_266) .cse12 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse2 .cse3 v_ArrVal_266) .cse12 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) .cse5))))))) is different from false [2022-11-03 02:22:23,477 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse30 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse31 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse4 (<= .cse31 2147483647)) (.cse28 (* 8 .cse31)) (.cse9 (<= .cse30 2147483647)) (.cse29 (* .cse30 8)) (.cse27 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse18 (<= .cse27 2147483647)) (.cse1 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse12 (not .cse9)) (.cse2 (+ .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse6 (not .cse4)) (.cse10 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (+ .cse28 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse15 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse17 (* .cse27 8))) (and (or (let ((.cse0 (let ((.cse16 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse15 .cse16 (+ (- 2) (select .cse15 .cse16)))))) (and (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store .cse0 .cse1 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse4) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (= (select (store (store (store .cse0 .cse1 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse4) (or .cse6 (and (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (= (select (store (store (store .cse0 .cse1 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse9) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store .cse0 .cse10 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse12))) (or .cse6 (and (or .cse12 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse13 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store .cse0 .cse10 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse9 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse14 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse14 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse14)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse0 .cse1 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))) .cse18) (or (not .cse18) (let ((.cse20 (let ((.cse26 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse15 .cse26 (+ (- 2) (select .cse15 .cse26)))))) (and (or .cse4 (and (or .cse9 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse19 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse19 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store .cse20 .cse1 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse19)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse21 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse20 .cse10 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) .cse12))) (or (and (or .cse9 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse22 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22 1) c_~SIZE~0) (= (select (store (store (store .cse20 .cse1 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse12 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse23 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse23 1) c_~SIZE~0) (= (select (store (store (store .cse20 .cse10 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse23)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) .cse4) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse24 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse24 1) c_~SIZE~0) (= 0 (select (store (store (store .cse20 .cse10 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse24)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse25 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse25 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse25)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse20 .cse10 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))))))))) is different from false [2022-11-03 02:22:31,133 WARN L234 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:22:41,101 WARN L234 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 112 DAG size of output: 84 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:22:41,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:22:41,173 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:41,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 49 treesize of output 96 [2022-11-03 02:22:41,921 INFO L356 Elim1Store]: treesize reduction 22, result has 56.0 percent of original size [2022-11-03 02:22:41,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 791 treesize of output 764 [2022-11-03 02:22:42,996 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:22:42,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2624 treesize of output 2585 [2022-11-03 02:22:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2022-11-03 02:22:46,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:22:46,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686893083] [2022-11-03 02:22:46,663 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:22:46,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889208705] [2022-11-03 02:22:46,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889208705] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:22:46,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1912096630] [2022-11-03 02:22:46,666 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:22:46,666 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:22:46,666 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:22:46,666 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:22:46,666 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:22:46,724 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:22:46,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:22:46,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:22:46,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:22:46,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:22:46,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:22:46,888 INFO L356 Elim1Store]: treesize reduction 127, result has 24.0 percent of original size [2022-11-03 02:22:46,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 265 treesize of output 287 [2022-11-03 02:22:46,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:22:47,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:22:47,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:22:47,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:22:47,060 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:22:47,478 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1932#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:22:47,478 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:22:47,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:22:47,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-11-03 02:22:47,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128995945] [2022-11-03 02:22:47,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:22:47,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 02:22:47,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:22:47,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 02:22:47,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=584, Unknown=5, NotChecked=212, Total=930 [2022-11-03 02:22:47,485 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:22:49,616 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse30 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse31 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse4 (<= .cse31 2147483647)) (.cse28 (* 8 .cse31)) (.cse9 (<= .cse30 2147483647)) (.cse29 (* .cse30 8)) (.cse27 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse18 (<= .cse27 2147483647)) (.cse1 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse12 (not .cse9)) (.cse2 (+ .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse6 (not .cse4)) (.cse10 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (+ .cse28 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse15 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse17 (* .cse27 8))) (and (< 1 c_~SIZE~0) (<= c_~MAX~0 100000) (or (let ((.cse0 (let ((.cse16 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse15 .cse16 (+ (- 2) (select .cse15 .cse16)))))) (and (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store .cse0 .cse1 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse4) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (= (select (store (store (store .cse0 .cse1 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse4) (or .cse6 (and (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (= (select (store (store (store .cse0 .cse1 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse9) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store .cse0 .cse10 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse12))) (or .cse6 (and (or .cse12 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse13 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store .cse0 .cse10 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse9 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse14 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse14 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse14)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse0 .cse1 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))) .cse18) (= |c_ULTIMATE.start_main_~i~0#1| 0) (or (not .cse18) (let ((.cse20 (let ((.cse26 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse15 .cse26 (+ (- 2) (select .cse15 .cse26)))))) (and (or .cse4 (and (or .cse9 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse19 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse19 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store .cse20 .cse1 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse19)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse21 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse21)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse20 .cse10 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) .cse12))) (or (and (or .cse9 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse22 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22 1) c_~SIZE~0) (= (select (store (store (store .cse20 .cse1 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse12 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse23 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse23 1) c_~SIZE~0) (= (select (store (store (store .cse20 .cse10 v_ArrVal_266) .cse2 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse23)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) .cse4) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse24 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse24 1) c_~SIZE~0) (= 0 (select (store (store (store .cse20 .cse10 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse24)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse25 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse25 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse25)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse20 .cse10 v_ArrVal_266) .cse8 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))))) (<= c_~SIZE~0 99999))))) is different from false [2022-11-03 02:22:57,782 WARN L234 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:23:05,762 WARN L234 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 163 DAG size of output: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:23:14,050 WARN L234 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:23:15,155 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse19 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse20 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse18 (* .cse20 8)) (.cse5 (<= .cse20 2147483647)) (.cse0 (<= .cse19 2147483647)) (.cse17 (* .cse19 8))) (let ((.cse4 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse14 (not .cse0)) (.cse6 (not .cse5)) (.cse8 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse12 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (or .cse0 (and (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1)) (= (select (store (store (store .cse2 .cse3 v_ArrVal_266) .cse4 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse5) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (= (select (store (store (store .cse2 .cse8 v_ArrVal_266) .cse4 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))))) (< 3 c_~SIZE~0) (or .cse0 (and (or .cse5 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse2 .cse3 v_ArrVal_266) .cse4 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse10 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store .cse2 .cse8 v_ArrVal_266) .cse4 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse6))) (<= c_~SIZE~0 4) (or (and (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11)) (= (select (store (store (store .cse2 .cse3 v_ArrVal_266) .cse12 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse5) (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse13 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store .cse2 .cse8 v_ArrVal_266) .cse12 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) .cse14) (or .cse14 (and (or .cse6 (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse15 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= 0 (select (store (store (store .cse2 .cse8 v_ArrVal_266) .cse12 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or (forall ((v_ArrVal_269 Int) (v_ArrVal_267 Int) (v_ArrVal_266 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store .cse2 .cse3 v_ArrVal_266) .cse12 v_ArrVal_267) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) .cse5))) (= 0 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~i~0#1| 1))))) is different from false [2022-11-03 02:23:16,840 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (= 0 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (and (forall ((v_ArrVal_269 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (< 3 c_~SIZE~0) (<= c_~SIZE~0 4) (forall ((v_ArrVal_269 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_269) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) (< |c_ULTIMATE.start_main_~i~0#1| (+ c_~SIZE~0 1)) .cse3 (or (= (* 8 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) 0) .cse3)))) is different from false [2022-11-03 02:23:17,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:17,457 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2022-11-03 02:23:17,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 02:23:17,458 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:23:17,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:17,459 INFO L225 Difference]: With dead ends: 87 [2022-11-03 02:23:17,460 INFO L226 Difference]: Without dead ends: 85 [2022-11-03 02:23:17,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 55.0s TimeCoverageRelationStatistics Valid=309, Invalid=1431, Unknown=10, NotChecked=602, Total=2352 [2022-11-03 02:23:17,462 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 42 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 232 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:17,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 138 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 271 Invalid, 0 Unknown, 232 Unchecked, 0.4s Time] [2022-11-03 02:23:17,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-03 02:23:17,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 51. [2022-11-03 02:23:17,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.32) internal successors, (66), 50 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2022-11-03 02:23:17,517 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 15 [2022-11-03 02:23:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:17,518 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2022-11-03 02:23:17,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2022-11-03 02:23:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:23:17,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:17,519 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:17,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:17,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 02:23:17,734 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:17,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:17,734 INFO L85 PathProgramCache]: Analyzing trace with hash -171991228, now seen corresponding path program 9 times [2022-11-03 02:23:17,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:17,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104697675] [2022-11-03 02:23:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:17,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:17,755 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:17,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778235223] [2022-11-03 02:23:17,757 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:23:17,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:17,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:17,759 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:17,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 02:23:17,852 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:23:17,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:23:17,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 02:23:17,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:17,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:23:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:18,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:23:18,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104697675] [2022-11-03 02:23:18,082 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:23:18,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778235223] [2022-11-03 02:23:18,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778235223] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:23:18,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2114167757] [2022-11-03 02:23:18,084 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:23:18,084 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:23:18,084 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:23:18,084 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:23:18,084 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:23:18,141 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:23:18,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:23:18,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:23:18,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:23:18,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:23:18,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:23:18,342 INFO L356 Elim1Store]: treesize reduction 127, result has 24.0 percent of original size [2022-11-03 02:23:18,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 265 treesize of output 287 [2022-11-03 02:23:18,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:23:18,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:23:18,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:23:18,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:23:18,479 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:23:18,759 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2310#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:23:18,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:23:18,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:23:18,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2022-11-03 02:23:18,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801848825] [2022-11-03 02:23:18,760 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:23:18,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 02:23:18,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:23:18,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 02:23:18,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:23:18,762 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 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) [2022-11-03 02:23:19,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:23:19,494 INFO L93 Difference]: Finished difference Result 127 states and 146 transitions. [2022-11-03 02:23:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 02:23:19,495 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:23:19,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:23:19,496 INFO L225 Difference]: With dead ends: 127 [2022-11-03 02:23:19,496 INFO L226 Difference]: Without dead ends: 110 [2022-11-03 02:23:19,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=394, Invalid=1412, Unknown=0, NotChecked=0, Total=1806 [2022-11-03 02:23:19,497 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 102 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:23:19,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 226 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:23:19,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-03 02:23:19,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 45. [2022-11-03 02:23:19,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 44 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:23:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2022-11-03 02:23:19,536 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 16 [2022-11-03 02:23:19,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:23:19,537 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2022-11-03 02:23:19,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 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) [2022-11-03 02:23:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2022-11-03 02:23:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:23:19,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:23:19,538 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:23:19,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:23:19,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:19,739 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:23:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:23:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1978845697, now seen corresponding path program 2 times [2022-11-03 02:23:19,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:23:19,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641950860] [2022-11-03 02:23:19,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:23:19,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:23:19,750 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:23:19,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910817921] [2022-11-03 02:23:19,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:23:19,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:23:19,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:23:19,752 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:23:19,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 02:23:20,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:23:20,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:23:20,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-03 02:23:20,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:23:20,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 72 treesize of output 67 [2022-11-03 02:23:20,268 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:23:20,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-03 02:23:20,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 81 treesize of output 74 [2022-11-03 02:23:20,332 INFO L356 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-03 02:23:20,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 127 [2022-11-03 02:23:20,374 INFO L356 Elim1Store]: treesize reduction 61, result has 19.7 percent of original size [2022-11-03 02:23:20,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 101 treesize of output 42 [2022-11-03 02:23:20,430 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:23:20,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 30 treesize of output 25 [2022-11-03 02:23:20,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 31 treesize of output 15 [2022-11-03 02:23:20,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 67 treesize of output 60 [2022-11-03 02:23:20,513 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 02:23:20,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 113 [2022-11-03 02:23:20,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 14 [2022-11-03 02:23:22,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 73 treesize of output 65 [2022-11-03 02:23:22,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 45 [2022-11-03 02:23:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:23:22,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:23:25,309 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_348 Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_348) .cse2) 1) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_348 Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3)) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_348) .cse2) 1) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) is different from false [2022-11-03 02:23:27,481 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse12 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (* .cse12 8)) (.cse0 (<= .cse12 2147483647))) (and (or (not .cse0) (let ((.cse2 (let ((.cse6 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse5 .cse6 (+ (- 2) (select .cse5 .cse6)))))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_348 Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1)) (= (select (store .cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_348) .cse3) 1) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_348 Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_348) .cse3) 1) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))))) (or (let ((.cse8 (let ((.cse11 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse5 .cse11 (+ (- 2) (select .cse5 .cse11)))))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_348 Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store .cse8 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_348) .cse3) 1) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_348 Int)) (let ((.cse10 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store .cse8 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_348) .cse3) 1)))))) .cse0)))) is different from false [2022-11-03 02:24:28,864 WARN L234 SmtUtils]: Spent 30.64s on a formula simplification. DAG size of input: 133 DAG size of output: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:24:39,095 WARN L234 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:24:47,505 WARN L234 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:24:47,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:24:47,575 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:24:47,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 49 treesize of output 96 [2022-11-03 02:24:48,754 INFO L356 Elim1Store]: treesize reduction 46, result has 41.8 percent of original size [2022-11-03 02:24:48,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 405 treesize of output 376 [2022-11-03 02:24:50,266 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:24:50,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 297 treesize of output 291 [2022-11-03 02:24:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-03 02:24:54,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:24:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641950860] [2022-11-03 02:24:54,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:24:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910817921] [2022-11-03 02:24:54,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910817921] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:24:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1986914092] [2022-11-03 02:24:54,773 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:24:54,773 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:24:54,774 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:24:54,774 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:24:54,774 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:24:54,857 INFO L356 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-11-03 02:24:54,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-11-03 02:24:54,921 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:24:54,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:24:54,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:24:55,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:24:55,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:24:55,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:24:55,068 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:24:55,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:24:55,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:24:55,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:24:55,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:24:55,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:24:55,297 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:24:56,000 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2730#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:24:56,000 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:24:56,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:24:56,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-11-03 02:24:56,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253377942] [2022-11-03 02:24:56,001 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:24:56,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 02:24:56,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:24:56,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 02:24:56,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=643, Unknown=15, NotChecked=106, Total=870 [2022-11-03 02:24:56,002 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 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) [2022-11-03 02:25:06,436 WARN L234 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:25:10,964 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (<= c_~MAX~0 100000) (= (select .cse0 .cse1) 1) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_348 Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (= (select (store .cse0 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_348) .cse1) 1) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (<= c_~SIZE~0 2147483647) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_348 Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3)) (= (select (store .cse0 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_348) .cse1) 1) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (<= c_~SIZE~0 3) (< 2 c_~SIZE~0))) is different from false [2022-11-03 02:25:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:25:11,004 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-11-03 02:25:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 02:25:11,004 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 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 [2022-11-03 02:25:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:25:11,005 INFO L225 Difference]: With dead ends: 47 [2022-11-03 02:25:11,005 INFO L226 Difference]: Without dead ends: 45 [2022-11-03 02:25:11,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 105.1s TimeCoverageRelationStatistics Valid=166, Invalid=1018, Unknown=18, NotChecked=204, Total=1406 [2022-11-03 02:25:11,007 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:25:11,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 40 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 77 Invalid, 0 Unknown, 71 Unchecked, 0.2s Time] [2022-11-03 02:25:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-03 02:25:11,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-03 02:25:11,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 44 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:25:11,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2022-11-03 02:25:11,052 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 16 [2022-11-03 02:25:11,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:25:11,052 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2022-11-03 02:25:11,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.25) internal successors, (30), 24 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) [2022-11-03 02:25:11,052 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2022-11-03 02:25:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:25:11,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:25:11,053 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:25:11,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:25:11,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 02:25:11,258 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:25:11,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:25:11,259 INFO L85 PathProgramCache]: Analyzing trace with hash 128512028, now seen corresponding path program 10 times [2022-11-03 02:25:11,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:25:11,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325581795] [2022-11-03 02:25:11,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:25:11,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:25:11,270 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:25:11,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811762702] [2022-11-03 02:25:11,270 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:25:11,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:25:11,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:25:11,272 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:25:11,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 02:25:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:25:11,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-03 02:25:11,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:25:11,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:25:11,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:25:11,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:25:11,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:25:11,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:25:11,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-03 02:25:11,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:25:11,815 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:25:11,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 32 treesize of output 25 [2022-11-03 02:25:11,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 65 treesize of output 58 [2022-11-03 02:25:11,853 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-03 02:25:11,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 111 [2022-11-03 02:25:11,907 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:25:11,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 32 treesize of output 25 [2022-11-03 02:25:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:25:11,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:25:47,071 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse9 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse2 (+ (* 8 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (+ (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (* .cse9 8)) (.cse0 (<= .cse9 2147483647))) (and (or (not .cse0) (forall ((v_ArrVal_407 Int)) (let ((.cse4 (+ .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (forall ((v_ArrVal_412 Int) (v_ArrVal_409 Int)) (let ((.cse1 (store (store .cse3 .cse4 v_ArrVal_407) .cse5 v_ArrVal_409))) (or (= (select (store .cse1 .cse2 v_ArrVal_412) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (select .cse1 .cse2) (+ v_ArrVal_412 2))))) (< (select .cse3 .cse4) (+ v_ArrVal_407 2)))))) (or (forall ((v_ArrVal_407 Int)) (let ((.cse8 (+ .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (forall ((v_ArrVal_412 Int) (v_ArrVal_409 Int)) (let ((.cse7 (store (store .cse3 .cse8 v_ArrVal_407) .cse5 v_ArrVal_409))) (or (< (select .cse7 .cse2) (+ v_ArrVal_412 2)) (= (select (store .cse7 .cse2 v_ArrVal_412) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))) (< (select .cse3 .cse8) (+ v_ArrVal_407 2))))) .cse0)))) is different from false [2022-11-03 02:25:49,433 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse19 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse9 (<= .cse21 2147483647)) (.cse20 (* .cse21 8))) (let ((.cse5 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (not .cse9)) (.cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (.cse12 (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse6 (+ (* 8 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse13 (* .cse19 8)) (.cse0 (<= .cse19 2147483647))) (and (or (not .cse0) (let ((.cse8 (+ .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse1 (forall ((v_ArrVal_412 Int) (v_ArrVal_409 Int) (v_ArrVal_407 Int) (v_ArrVal_405 Int)) (let ((.cse4 (store .cse7 .cse8 v_ArrVal_405))) (let ((.cse2 (store (store .cse4 .cse5 v_ArrVal_407) .cse6 v_ArrVal_409))) (or (= (select (store .cse2 .cse3 v_ArrVal_412) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (select .cse2 .cse3) (+ v_ArrVal_412 2)) (< (select .cse4 .cse5) (+ v_ArrVal_407 2))))))) (or .cse9 (forall ((v_ArrVal_412 Int) (v_ArrVal_409 Int) (v_ArrVal_407 Int) (v_ArrVal_405 Int)) (let ((.cse11 (store .cse7 .cse8 v_ArrVal_405))) (let ((.cse10 (store (store .cse11 .cse12 v_ArrVal_407) .cse6 v_ArrVal_409))) (or (< (select .cse10 .cse3) (+ v_ArrVal_412 2)) (< (select .cse11 .cse12) (+ v_ArrVal_407 2)) (= (select (store .cse10 .cse3 v_ArrVal_412) |c_ULTIMATE.start_main_~a~0#1.offset|) 0))))))))) (or (let ((.cse16 (+ .cse13 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or (forall ((v_ArrVal_412 Int) (v_ArrVal_409 Int) (v_ArrVal_407 Int) (v_ArrVal_405 Int)) (let ((.cse15 (store .cse7 .cse16 v_ArrVal_405))) (let ((.cse14 (store (store .cse15 .cse5 v_ArrVal_407) .cse6 v_ArrVal_409))) (or (= (select (store .cse14 .cse3 v_ArrVal_412) |c_ULTIMATE.start_main_~a~0#1.offset|) 0) (< (select .cse14 .cse3) (+ v_ArrVal_412 2)) (< (select .cse15 .cse5) (+ v_ArrVal_407 2)))))) .cse1) (or .cse9 (forall ((v_ArrVal_412 Int) (v_ArrVal_409 Int) (v_ArrVal_407 Int) (v_ArrVal_405 Int)) (let ((.cse18 (store .cse7 .cse16 v_ArrVal_405))) (let ((.cse17 (store (store .cse18 .cse12 v_ArrVal_407) .cse6 v_ArrVal_409))) (or (< (select .cse17 .cse3) (+ v_ArrVal_412 2)) (< (select .cse18 .cse12) (+ v_ArrVal_407 2)) (= (select (store .cse17 .cse3 v_ArrVal_412) |c_ULTIMATE.start_main_~a~0#1.offset|) 0)))))))) .cse0))))) is different from false [2022-11-03 02:28:13,798 WARN L234 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 140 DAG size of output: 124 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:28:15,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:28:15,114 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:28:15,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 96 [2022-11-03 02:28:15,345 INFO L356 Elim1Store]: treesize reduction 23, result has 39.5 percent of original size [2022-11-03 02:28:15,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1706 treesize of output 1664 [2022-11-03 02:28:16,684 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:28:16,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8080 treesize of output 8042 [2022-11-03 02:28:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 1 times theorem prover too weak. 0 trivial. 9 not checked. [2022-11-03 02:28:48,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:28:48,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325581795] [2022-11-03 02:28:48,177 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:28:48,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811762702] [2022-11-03 02:28:48,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811762702] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:28:48,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1808293385] [2022-11-03 02:28:48,179 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:28:48,179 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:28:48,179 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:28:48,180 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:28:48,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:28:48,264 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:28:48,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:28:48,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:28:48,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:28:48,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:28:48,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:28:48,448 INFO L356 Elim1Store]: treesize reduction 127, result has 24.0 percent of original size [2022-11-03 02:28:48,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 265 treesize of output 287 [2022-11-03 02:28:48,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:28:48,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:28:48,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:28:48,571 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:28:48,584 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:28:49,125 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3032#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:28:49,125 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:28:49,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:28:49,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 26 [2022-11-03 02:28:49,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011317641] [2022-11-03 02:28:49,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:28:49,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 02:28:49,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:28:49,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 02:28:49,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=673, Unknown=26, NotChecked=110, Total=930 [2022-11-03 02:28:49,127 INFO L87 Difference]: Start difference. First operand 45 states and 52 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) [2022-11-03 02:29:16,703 WARN L234 SmtUtils]: Spent 18.09s on a formula simplification. DAG size of input: 137 DAG size of output: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:29:29,539 WARN L234 SmtUtils]: Spent 8.26s on a formula simplification. DAG size of input: 74 DAG size of output: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:29:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:38,006 INFO L93 Difference]: Finished difference Result 90 states and 106 transitions. [2022-11-03 02:29:38,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 02:29:38,007 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 17 [2022-11-03 02:29:38,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:38,008 INFO L225 Difference]: With dead ends: 90 [2022-11-03 02:29:38,008 INFO L226 Difference]: Without dead ends: 88 [2022-11-03 02:29:38,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 230.2s TimeCoverageRelationStatistics Valid=180, Invalid=985, Unknown=33, NotChecked=134, Total=1332 [2022-11-03 02:29:38,009 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 58 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:38,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 119 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 158 Invalid, 0 Unknown, 254 Unchecked, 0.3s Time] [2022-11-03 02:29:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-03 02:29:38,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 54. [2022-11-03 02:29:38,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 53 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:38,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2022-11-03 02:29:38,076 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 17 [2022-11-03 02:29:38,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:38,076 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-11-03 02:29:38,077 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) [2022-11-03 02:29:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-11-03 02:29:38,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:29:38,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:38,078 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:38,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:38,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:38,294 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:38,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:38,294 INFO L85 PathProgramCache]: Analyzing trace with hash 402306644, now seen corresponding path program 3 times [2022-11-03 02:29:38,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:38,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886509522] [2022-11-03 02:29:38,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:38,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:38,305 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:29:38,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551854636] [2022-11-03 02:29:38,305 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:29:38,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:38,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:38,307 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:38,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 02:29:38,585 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:29:38,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:29:38,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-03 02:29:38,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:38,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-11-03 02:29:38,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:29:38,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:29:38,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:29:38,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 31 treesize of output 15 [2022-11-03 02:29:38,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 67 treesize of output 60 [2022-11-03 02:29:38,756 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 02:29:38,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 113 [2022-11-03 02:29:38,777 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:29:38,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:29:39,070 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:39,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:41,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:29:41,544 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:29:41,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 96 [2022-11-03 02:29:41,643 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:29:41,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 602 treesize of output 577 [2022-11-03 02:29:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:42,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:42,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886509522] [2022-11-03 02:29:42,020 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:29:42,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551854636] [2022-11-03 02:29:42,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551854636] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:29:42,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [999074609] [2022-11-03 02:29:42,022 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:29:42,022 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:29:42,023 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:29:42,023 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:29:42,023 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:29:42,101 INFO L356 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-11-03 02:29:42,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-11-03 02:29:42,173 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:29:42,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:29:42,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:29:42,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:42,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:42,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:42,303 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:29:42,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:29:42,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:29:42,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:29:42,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:29:42,419 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:29:42,535 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:29:43,275 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3422#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:29:43,275 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:29:43,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:29:43,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 28 [2022-11-03 02:29:43,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741324502] [2022-11-03 02:29:43,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:29:43,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-03 02:29:43,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:43,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-03 02:29:43,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=984, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 02:29:43,277 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 28 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:43,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:43,978 INFO L93 Difference]: Finished difference Result 71 states and 88 transitions. [2022-11-03 02:29:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 02:29:43,979 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 02:29:43,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:43,980 INFO L225 Difference]: With dead ends: 71 [2022-11-03 02:29:43,980 INFO L226 Difference]: Without dead ends: 69 [2022-11-03 02:29:43,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2022-11-03 02:29:43,988 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:43,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 27 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 0 Unknown, 62 Unchecked, 0.3s Time] [2022-11-03 02:29:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-03 02:29:44,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 59. [2022-11-03 02:29:44,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.293103448275862) internal successors, (75), 58 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-03 02:29:44,071 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 18 [2022-11-03 02:29:44,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:44,072 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-03 02:29:44,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-03 02:29:44,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:29:44,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:44,074 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:44,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:44,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:44,281 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:44,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:44,281 INFO L85 PathProgramCache]: Analyzing trace with hash -923721124, now seen corresponding path program 4 times [2022-11-03 02:29:44,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:44,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258907382] [2022-11-03 02:29:44,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:44,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:44,292 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:29:44,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827970775] [2022-11-03 02:29:44,293 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:29:44,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:44,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:44,294 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:44,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-03 02:29:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:29:44,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 02:29:44,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:44,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-11-03 02:29:44,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 67 treesize of output 60 [2022-11-03 02:29:44,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:44,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 120 [2022-11-03 02:29:44,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:44,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 21 [2022-11-03 02:29:44,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 22 [2022-11-03 02:29:44,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 31 treesize of output 15 [2022-11-03 02:29:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:44,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:46,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:29:46,027 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:29:46,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 49 treesize of output 96 [2022-11-03 02:29:46,369 INFO L356 Elim1Store]: treesize reduction 24, result has 55.6 percent of original size [2022-11-03 02:29:46,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 62 [2022-11-03 02:29:46,679 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:29:46,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 61 treesize of output 44 [2022-11-03 02:29:47,146 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:29:47,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:47,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258907382] [2022-11-03 02:29:47,146 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:29:47,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827970775] [2022-11-03 02:29:47,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827970775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:29:47,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1051447321] [2022-11-03 02:29:47,148 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:29:47,148 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:29:47,148 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:29:47,149 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:29:47,149 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:29:47,225 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:29:47,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:29:47,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:29:47,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:29:47,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:47,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:47,374 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:29:47,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:29:47,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:29:47,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:29:47,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:29:47,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:29:47,591 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:29:48,375 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3793#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:29:48,375 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:29:48,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:29:48,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2022-11-03 02:29:48,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664685809] [2022-11-03 02:29:48,376 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:29:48,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 02:29:48,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:48,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 02:29:48,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2022-11-03 02:29:48,377 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 25 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:49,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:49,079 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2022-11-03 02:29:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:29:49,080 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 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 [2022-11-03 02:29:49,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:49,081 INFO L225 Difference]: With dead ends: 78 [2022-11-03 02:29:49,081 INFO L226 Difference]: Without dead ends: 64 [2022-11-03 02:29:49,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=935, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 02:29:49,082 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 38 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:49,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 118 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 199 Invalid, 0 Unknown, 49 Unchecked, 0.5s Time] [2022-11-03 02:29:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-03 02:29:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 47. [2022-11-03 02:29:49,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2022-11-03 02:29:49,121 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2022-11-03 02:29:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:49,122 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2022-11-03 02:29:49,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2022-11-03 02:29:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:29:49,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:49,123 INFO L195 NwaCegarLoop]: trace histogram [10, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:49,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:49,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 02:29:49,329 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:49,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:49,329 INFO L85 PathProgramCache]: Analyzing trace with hash -235576535, now seen corresponding path program 11 times [2022-11-03 02:29:49,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:49,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734569521] [2022-11-03 02:29:49,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:49,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:49,344 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:29:49,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360266871] [2022-11-03 02:29:49,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:29:49,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:49,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:49,346 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:49,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 02:29:50,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-03 02:29:50,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:29:50,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 02:29:50,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 02:29:50,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:29:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 02:29:50,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:29:50,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734569521] [2022-11-03 02:29:50,423 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:29:50,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360266871] [2022-11-03 02:29:50,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360266871] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:29:50,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [94828016] [2022-11-03 02:29:50,425 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:29:50,425 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:29:50,426 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:29:50,426 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:29:50,426 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:29:50,502 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:29:50,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:29:50,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:29:50,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:29:50,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:50,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:50,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:29:50,659 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:29:50,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:29:50,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:29:50,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 9 [2022-11-03 02:29:50,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:29:50,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:29:50,780 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:29:51,115 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4152#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:29:51,115 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:29:51,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:29:51,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2022-11-03 02:29:51,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008824349] [2022-11-03 02:29:51,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:29:51,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 02:29:51,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:29:51,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 02:29:51,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:29:51,120 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 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) [2022-11-03 02:29:51,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:29:51,455 INFO L93 Difference]: Finished difference Result 112 states and 134 transitions. [2022-11-03 02:29:51,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:29:51,456 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-03 02:29:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:29:51,457 INFO L225 Difference]: With dead ends: 112 [2022-11-03 02:29:51,457 INFO L226 Difference]: Without dead ends: 94 [2022-11-03 02:29:51,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2022-11-03 02:29:51,458 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 78 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:29:51,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 64 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:29:51,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-03 02:29:51,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 63. [2022-11-03 02:29:51,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 62 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:29:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-11-03 02:29:51,559 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 21 [2022-11-03 02:29:51,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:29:51,559 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-11-03 02:29:51,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 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) [2022-11-03 02:29:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-11-03 02:29:51,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:29:51,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:29:51,560 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 02:29:51,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-03 02:29:51,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 02:29:51,769 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:29:51,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:29:51,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2131267287, now seen corresponding path program 5 times [2022-11-03 02:29:51,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:29:51,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779275979] [2022-11-03 02:29:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:29:51,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:29:51,780 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:29:51,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000150154] [2022-11-03 02:29:51,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:29:51,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:29:51,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:29:51,782 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:29:51,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-03 02:29:52,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:29:52,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:29:52,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-03 02:29:52,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:29:52,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 72 treesize of output 67 [2022-11-03 02:29:52,242 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:29:52,245 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-03 02:29:52,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:29:52,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 67 treesize of output 60 [2022-11-03 02:29:52,377 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 02:29:52,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 113 [2022-11-03 02:29:52,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:29:52,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 31 treesize of output 15 [2022-11-03 02:29:52,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 104 treesize of output 93 [2022-11-03 02:29:52,547 INFO L356 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-11-03 02:29:52,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 144 [2022-11-03 02:29:52,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 63 [2022-11-03 02:30:06,812 WARN L234 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:30:13,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 82 treesize of output 72 [2022-11-03 02:30:13,441 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 02:30:13,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 46 [2022-11-03 02:30:13,513 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:30:13,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:30:16,393 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (forall ((v_ArrVal_605 Int)) (let ((.cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (= (select (store .cse1 .cse2 v_ArrVal_605) .cse3) 4) (< (select .cse1 .cse2) (+ v_ArrVal_605 2)))))))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (forall ((v_ArrVal_605 Int)) (let ((.cse5 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (= (select (store .cse1 (+ .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse3) 4) (not (<= (+ v_ArrVal_605 2) (select .cse1 (+ .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse6 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store .cse1 .cse6 v_ArrVal_605) .cse3) 4) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (< (select .cse1 .cse6) (+ v_ArrVal_605 2)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) is different from false [2022-11-03 02:30:18,697 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse20 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (<= .cse20 2147483647)) (.cse3 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse11 (* .cse20 8))) (and (or (not .cse0) (let ((.cse1 (let ((.cse10 (+ .cse11 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse9 .cse10 (+ (- 2) (select .cse9 .cse10)))))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (forall ((v_ArrVal_605 Int)) (let ((.cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (= (select (store .cse1 .cse2 v_ArrVal_605) .cse3) 4) (< (select .cse1 .cse2) (+ v_ArrVal_605 2))))) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((v_ArrVal_605 Int)) (let ((.cse6 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (= (select (store .cse1 (+ .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse3) 4) (not (<= (+ v_ArrVal_605 2) (select .cse1 (+ .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store .cse1 .cse7 v_ArrVal_605) .cse3) 4) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8 1) c_~SIZE~0) (< (select .cse1 .cse7) (+ v_ArrVal_605 2)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))))) (or .cse0 (let ((.cse13 (let ((.cse19 (+ .cse11 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (store .cse9 .cse19 (+ (- 2) (select .cse9 .cse19)))))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse12 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse14 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse12 1) c_~SIZE~0) (= 4 (select (store .cse13 .cse14 v_ArrVal_605) .cse3)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse12)) (< (select .cse13 .cse14) (+ v_ArrVal_605 2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse15 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (forall ((v_ArrVal_605 Int)) (let ((.cse16 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (= 4 (select (store .cse13 (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse3)) (not (<= (+ v_ArrVal_605 2) (select .cse13 (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse17 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (forall ((v_ArrVal_605 Int)) (let ((.cse18 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (select .cse13 .cse18) (+ v_ArrVal_605 2)) (= 4 (select (store .cse13 .cse18 v_ArrVal_605) .cse3)))))))))))))) is different from false [2022-11-03 02:30:22,333 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse60 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse9 (<= .cse60 2147483647)) (.cse59 (* .cse60 8)) (.cse58 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse0 (<= .cse58 2147483647)) (.cse8 (+ .cse59 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse10 (not .cse9)) (.cse4 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse15 (+ .cse59 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse32 (* .cse58 8))) (and (or .cse0 (let ((.cse6 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse2 (let ((.cse5 (store .cse7 .cse8 v_ArrVal_602))) (store .cse5 .cse6 (+ (- 2) (select .cse5 .cse6))))) (.cse3 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1)) (< (select .cse2 .cse3) (+ v_ArrVal_605 2)) (= (select (store .cse2 .cse3 v_ArrVal_605) .cse4) 4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse9) (or .cse10 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse12 (let ((.cse14 (store .cse7 .cse15 v_ArrVal_602))) (store .cse14 .cse6 (+ (- 2) (select .cse14 .cse6))))) (.cse13 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11)) (< (select .cse12 .cse13) (+ v_ArrVal_605 2)) (= (select (store .cse12 .cse13 v_ArrVal_605) .cse4) 4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse17 (let ((.cse19 (store .cse7 .cse8 v_ArrVal_602))) (store .cse19 .cse6 (+ (- 2) (select .cse19 .cse6))))) (.cse18 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (not (<= (+ v_ArrVal_605 2) (select .cse17 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))) (= (select (store .cse17 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4) 4)))) .cse9) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse20 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse21 (let ((.cse23 (store .cse7 .cse8 v_ArrVal_602))) (store .cse23 .cse6 (+ (- 2) (select .cse23 .cse6))))) (.cse22 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse20 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse21 .cse22) (+ v_ArrVal_605 2)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse20)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= 4 (select (store .cse21 .cse22 v_ArrVal_605) .cse4))))) .cse9) (or .cse10 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse24 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse25 (let ((.cse27 (store .cse7 .cse15 v_ArrVal_602))) (store .cse27 .cse6 (+ (- 2) (select .cse27 .cse6))))) (.cse26 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse24 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse24)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store .cse25 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4) 4) (not (<= (+ v_ArrVal_605 2) (select .cse25 (+ .cse26 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))))) (or .cse10 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse28 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse29 (let ((.cse31 (store .cse7 .cse15 v_ArrVal_602))) (store .cse31 .cse6 (+ (- 2) (select .cse31 .cse6))))) (.cse30 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28)) (< (select .cse29 .cse30) (+ v_ArrVal_605 2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= 4 (select (store .cse29 .cse30 v_ArrVal_605) .cse4))))))))) (or (not .cse0) (let ((.cse37 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse9 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse33 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse34 (let ((.cse36 (store .cse7 .cse8 v_ArrVal_602))) (store .cse36 .cse37 (+ (- 2) (select .cse36 .cse37))))) (.cse35 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse33 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse34 .cse35) (+ v_ArrVal_605 2)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse33)) (= (select (store .cse34 .cse35 v_ArrVal_605) .cse4) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse38 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse39 (let ((.cse41 (store .cse7 .cse8 v_ArrVal_602))) (store .cse41 .cse37 (+ (- 2) (select .cse41 .cse37))))) (.cse40 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse38 1) c_~SIZE~0) (= 4 (select (store .cse39 .cse40 v_ArrVal_605) .cse4)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse38)) (< (select .cse39 .cse40) (+ v_ArrVal_605 2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse9) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse42 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse43 (let ((.cse45 (store .cse7 .cse15 v_ArrVal_602))) (store .cse45 .cse37 (+ (- 2) (select .cse45 .cse37))))) (.cse44 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse42 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse42)) (= (select (store .cse43 (+ .cse44 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4) 4) (not (<= (+ v_ArrVal_605 2) (select .cse43 (+ .cse44 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse10) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse46 (let ((.cse49 (store .cse7 .cse8 v_ArrVal_602))) (store .cse49 .cse37 (+ (- 2) (select .cse49 .cse37))))) (.cse47 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8)) (.cse48 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= (+ v_ArrVal_605 2) (select .cse46 (+ .cse47 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse48 1) c_~SIZE~0) (= 4 (select (store .cse46 (+ .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse48)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse9) (or .cse10 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse50 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse51 (let ((.cse53 (store .cse7 .cse15 v_ArrVal_602))) (store .cse53 .cse37 (+ (- 2) (select .cse53 .cse37))))) (.cse52 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse50 1) c_~SIZE~0) (< (select .cse51 .cse52) (+ v_ArrVal_605 2)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse50)) (= (select (store .cse51 .cse52 v_ArrVal_605) .cse4) 4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse10 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse54 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse55 (let ((.cse57 (store .cse7 .cse15 v_ArrVal_602))) (store .cse57 .cse37 (+ (- 2) (select .cse57 .cse37))))) (.cse56 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse54 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse55 .cse56) (+ v_ArrVal_605 2)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse54)) (= (select (store .cse55 .cse56 v_ArrVal_605) .cse4) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))))))))) is different from false [2022-11-03 02:30:28,562 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse89 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse90 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse86 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse19 (<= .cse90 2147483647)) (.cse87 (* .cse90 8)) (.cse88 (* 8 .cse89)) (.cse47 (<= .cse89 2147483647))) (let ((.cse1 (not .cse47)) (.cse7 (+ .cse88 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse10 (+ .cse87 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse30 (not .cse19)) (.cse4 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse24 (+ .cse88 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse25 (+ .cse87 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse48 (* .cse86 8)) (.cse0 (<= .cse86 2147483647))) (and (or (not .cse0) (let ((.cse9 (+ .cse48 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or .cse1 (and (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse2 (let ((.cse6 (store (store .cse8 .cse9 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse6 .cse7 (+ (- 2) (select .cse6 .cse7))))) (.cse3 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= (select (store .cse2 .cse3 v_ArrVal_605) .cse4) 4) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (< (select .cse2 .cse3) (+ v_ArrVal_605 2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse12 (let ((.cse14 (store (store .cse8 .cse9 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse14 .cse7 (+ (- 2) (select .cse14 .cse7))))) (.cse13 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse12 .cse13 v_ArrVal_605) .cse4) 4) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11)) (< (select .cse12 .cse13) (+ v_ArrVal_605 2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse15 (let ((.cse18 (store (store .cse8 .cse9 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse18 .cse7 (+ (- 2) (select .cse18 .cse7))))) (.cse16 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8)) (.cse17 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store .cse15 (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4) 4) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= (+ v_ArrVal_605 2) (select .cse15 (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) (or (and (or .cse19 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse22 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse20 (let ((.cse23 (store (store .cse8 .cse9 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse23 .cse24 (+ (- 2) (select .cse23 .cse24))))) (.cse21 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (= (select (store .cse20 .cse21 v_ArrVal_605) .cse4) 4) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22)) (< (select .cse20 .cse21) (+ v_ArrVal_605 2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse19 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse28 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse26 (let ((.cse29 (store (store .cse8 .cse9 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse29 .cse24 (+ (- 2) (select .cse29 .cse24))))) (.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (= (select (store .cse26 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4) 4) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28)) (not (<= (+ v_ArrVal_605 2) (select .cse26 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse30 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse33 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse31 (let ((.cse34 (store (store .cse8 .cse9 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse34 .cse24 (+ (select .cse34 .cse24) (- 2))))) (.cse32 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (= 4 (select (store .cse31 .cse32 v_ArrVal_605) .cse4)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse33 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse33)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (select .cse31 .cse32) (+ v_ArrVal_605 2)))))) (or .cse19 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse35 (let ((.cse38 (store (store .cse8 .cse9 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse38 .cse24 (+ (- 2) (select .cse38 .cse24))))) (.cse36 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse37 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store .cse35 .cse36 v_ArrVal_605) .cse4) 4) (< (select .cse35 .cse36) (+ v_ArrVal_605 2)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse30 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse39 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse40 (let ((.cse42 (store (store .cse8 .cse9 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse42 .cse24 (+ (select .cse42 .cse24) (- 2))))) (.cse41 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse39 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse39)) (= (select (store .cse40 .cse41 v_ArrVal_605) .cse4) 4) (< (select .cse40 .cse41) (+ v_ArrVal_605 2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or .cse30 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse43 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse44 (let ((.cse46 (store (store .cse8 .cse9 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse46 .cse24 (+ (select .cse46 .cse24) (- 2))))) (.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse43 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= (+ v_ArrVal_605 2) (select .cse44 (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse43)) (= (select (store .cse44 (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) .cse47)))) (or (let ((.cse53 (+ .cse48 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or .cse1 (and (or .cse19 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse49 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse50 (let ((.cse52 (store (store .cse8 .cse53 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse52 .cse7 (+ (- 2) (select .cse52 .cse7))))) (.cse51 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse49 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse49)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (not (<= (+ v_ArrVal_605 2) (select .cse50 (+ .cse51 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))) (= 4 (select (store .cse50 (+ .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4)))))) (or .cse30 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse54 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse55 (let ((.cse57 (store (store .cse8 .cse53 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse57 .cse7 (+ (- 2) (select .cse57 .cse7))))) (.cse56 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse54 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= (+ v_ArrVal_605 2) (select .cse55 (+ .cse56 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse54)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store .cse55 (+ .cse56 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4) 4))))) (or (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse60 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse58 (let ((.cse61 (store (store .cse8 .cse53 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse61 .cse7 (+ (- 2) (select .cse61 .cse7))))) (.cse59 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (= (select (store .cse58 .cse59 v_ArrVal_605) .cse4) 4) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse60 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse60)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (select .cse58 .cse59) (+ v_ArrVal_605 2))))) .cse30) (or .cse19 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse62 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse63 (let ((.cse65 (store (store .cse8 .cse53 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse65 .cse7 (+ (- 2) (select .cse65 .cse7))))) (.cse64 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse62 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse62)) (< (select .cse63 .cse64) (+ v_ArrVal_605 2)) (= (select (store .cse63 .cse64 v_ArrVal_605) .cse4) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse19 (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse66 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse67 (let ((.cse69 (store (store .cse8 .cse53 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse69 .cse7 (+ (- 2) (select .cse69 .cse7))))) (.cse68 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse66 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse66)) (< (select .cse67 .cse68) (+ v_ArrVal_605 2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= 4 (select (store .cse67 .cse68 v_ArrVal_605) .cse4)))))) (or (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse72 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse70 (let ((.cse73 (store (store .cse8 .cse53 v_ArrVal_599) .cse10 v_ArrVal_602))) (store .cse73 .cse7 (+ (- 2) (select .cse73 .cse7))))) (.cse71 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (select .cse70 .cse71) (+ v_ArrVal_605 2)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse72 1) c_~SIZE~0) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse72)) (= (select (store .cse70 .cse71 v_ArrVal_605) .cse4) 4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse30))) (or (and (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse74 (let ((.cse77 (store (store .cse8 .cse53 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse77 .cse24 (+ (- 2) (select .cse77 .cse24))))) (.cse75 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse76 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (select .cse74 .cse75) (+ v_ArrVal_605 2)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse76 1) c_~SIZE~0) (= (select (store .cse74 .cse75 v_ArrVal_605) .cse4) 4) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse76)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse78 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296)) (.cse79 (let ((.cse81 (store (store .cse8 .cse53 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse81 .cse24 (+ (- 2) (select .cse81 .cse24))))) (.cse80 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse78 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse79 (+ .cse80 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse4) 4) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse78)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (not (<= (+ v_ArrVal_605 2) (select .cse79 (+ .cse80 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) (forall ((v_ArrVal_599 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (v_ArrVal_602 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse82 (let ((.cse85 (store (store .cse8 .cse53 v_ArrVal_599) .cse25 v_ArrVal_602))) (store .cse85 .cse24 (+ (- 2) (select .cse85 .cse24))))) (.cse83 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse84 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (select .cse82 .cse83) (+ v_ArrVal_605 2)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse84 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse82 .cse83 v_ArrVal_605) .cse4) 4) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse84)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) .cse47))) .cse0))))) is different from false [2022-11-03 02:30:43,050 WARN L234 SmtUtils]: Spent 12.10s on a formula simplification. DAG size of input: 63 DAG size of output: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:30:45,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:30:45,791 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:30:45,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 49 treesize of output 96 [2022-11-03 02:30:50,765 INFO L356 Elim1Store]: treesize reduction 90, result has 51.9 percent of original size [2022-11-03 02:30:50,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 5503 treesize of output 5213 [2022-11-03 02:32:10,240 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:32:10,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3399 treesize of output 3250 [2022-11-03 02:32:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2022-11-03 02:32:42,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:32:42,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779275979] [2022-11-03 02:32:42,940 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:32:42,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000150154] [2022-11-03 02:32:42,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000150154] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:32:42,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1044940915] [2022-11-03 02:32:42,942 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:32:42,942 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:32:42,943 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:32:42,943 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:32:42,943 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:32:43,016 INFO L356 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-11-03 02:32:43,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-11-03 02:32:43,082 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:32:43,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:32:43,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 59 [2022-11-03 02:32:43,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:43,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:43,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:32:43,197 INFO L356 Elim1Store]: treesize reduction 114, result has 5.8 percent of original size [2022-11-03 02:32:43,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 296 treesize of output 293 [2022-11-03 02:32:43,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:32:43,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:32:43,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:32:43,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:32:43,383 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:32:44,228 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4602#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (<= 1 ~SIZE~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:32:44,228 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:32:44,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:32:44,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2022-11-03 02:32:44,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466612413] [2022-11-03 02:32:44,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:32:44,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 02:32:44,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:32:44,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 02:32:44,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=862, Unknown=11, NotChecked=252, Total=1260 [2022-11-03 02:32:44,230 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:01,634 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (< 3 c_~SIZE~0) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (forall ((v_ArrVal_605 Int)) (let ((.cse2 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (or (= (select (store .cse1 .cse2 v_ArrVal_605) .cse3) 4) (< (select .cse1 .cse2) (+ v_ArrVal_605 2)))))))) (<= c_~SIZE~0 4) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~SIZE~0) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (forall ((v_ArrVal_605 Int)) (let ((.cse5 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8))) (or (= (select (store .cse1 (+ .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_605) .cse3) 4) (not (<= (+ v_ArrVal_605 2) (select .cse1 (+ .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (= (select .cse1 .cse3) 4) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_605 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse6 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store .cse1 .cse6 v_ArrVal_605) .cse3) 4) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~SIZE~0) (< (select .cse1 .cse6) (+ v_ArrVal_605 2)) (<= c_~SIZE~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) is different from false [2022-11-03 02:33:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:01,705 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2022-11-03 02:33:01,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 02:33:01,706 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 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 [2022-11-03 02:33:01,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:01,706 INFO L225 Difference]: With dead ends: 72 [2022-11-03 02:33:01,706 INFO L226 Difference]: Without dead ends: 70 [2022-11-03 02:33:01,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 64.3s TimeCoverageRelationStatistics Valid=205, Invalid=1360, Unknown=15, NotChecked=400, Total=1980 [2022-11-03 02:33:01,707 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:01,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 60 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 101 Invalid, 0 Unknown, 106 Unchecked, 0.3s Time] [2022-11-03 02:33:01,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-03 02:33:01,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2022-11-03 02:33:01,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 62 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 78 transitions. [2022-11-03 02:33:01,773 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 78 transitions. Word has length 21 [2022-11-03 02:33:01,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:01,773 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 78 transitions. [2022-11-03 02:33:01,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:01,774 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2022-11-03 02:33:01,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:33:01,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:01,774 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:01,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:01,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:01,978 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:01,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1200289231, now seen corresponding path program 12 times [2022-11-03 02:33:01,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:01,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582475434] [2022-11-03 02:33:01,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:01,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:01,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:33:01,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461180557] [2022-11-03 02:33:01,992 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:33:01,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:01,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:01,993 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:02,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-03 02:33:02,100 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:33:02,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:33:02,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 02:33:02,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:02,380 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:02,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:02,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:02,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582475434] [2022-11-03 02:33:02,670 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:33:02,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461180557] [2022-11-03 02:33:02,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461180557] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:33:02,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2061309570] [2022-11-03 02:33:02,671 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:33:02,671 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:33:02,672 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:33:02,672 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:33:02,672 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:33:02,761 INFO L356 Elim1Store]: treesize reduction 42, result has 40.0 percent of original size [2022-11-03 02:33:02,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2022-11-03 02:33:02,836 INFO L356 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-03 02:33:02,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2022-11-03 02:33:02,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:33:02,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:02,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:03,037 INFO L356 Elim1Store]: treesize reduction 127, result has 24.0 percent of original size [2022-11-03 02:33:03,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 265 treesize of output 287 [2022-11-03 02:33:03,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 38 [2022-11-03 02:33:03,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:33:03,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:33:03,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 63 treesize of output 32 [2022-11-03 02:33:03,195 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:33:03,537 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5014#(and (= |ULTIMATE.start_main_#t~mem10#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8)))) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= ~MAX~0 100000) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem10#1|) 1 0)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= ~SIZE~0 100000) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (< |ULTIMATE.start_main_~i~0#1| ~SIZE~0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 02:33:03,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:33:03,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:33:03,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 29 [2022-11-03 02:33:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481188008] [2022-11-03 02:33:03,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:33:03,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-03 02:33:03,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:03,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-03 02:33:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=885, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 02:33:03,539 INFO L87 Difference]: Start difference. First operand 63 states and 78 transitions. Second operand has 29 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 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) [2022-11-03 02:33:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:05,114 INFO L93 Difference]: Finished difference Result 196 states and 215 transitions. [2022-11-03 02:33:05,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-03 02:33:05,115 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 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 22 [2022-11-03 02:33:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:05,116 INFO L225 Difference]: With dead ends: 196 [2022-11-03 02:33:05,116 INFO L226 Difference]: Without dead ends: 189 [2022-11-03 02:33:05,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 25 SyntacticMatches, 7 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=748, Invalid=2912, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 02:33:05,118 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 175 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:05,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 323 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:33:05,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-03 02:33:05,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 73. [2022-11-03 02:33:05,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 72 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:33:05,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2022-11-03 02:33:05,186 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 22 [2022-11-03 02:33:05,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:05,186 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2022-11-03 02:33:05,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 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) [2022-11-03 02:33:05,186 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2022-11-03 02:33:05,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:33:05,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:05,187 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:05,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:05,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:05,400 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:33:05,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:05,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1570629108, now seen corresponding path program 6 times [2022-11-03 02:33:05,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:05,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774110556] [2022-11-03 02:33:05,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:05,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:05,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:33:05,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1665246519] [2022-11-03 02:33:05,411 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:33:05,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:05,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:05,412 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:05,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62540aaa-3628-4f64-8d86-e0056898ba00/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-03 02:33:06,155 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:33:06,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:33:06,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-03 02:33:06,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:06,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 72 treesize of output 67 [2022-11-03 02:33:06,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-03 02:33:06,224 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:33:06,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:33:06,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:33:06,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:33:06,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:33:06,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 67 treesize of output 60 [2022-11-03 02:33:06,395 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 02:33:06,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 113 [2022-11-03 02:33:06,426 INFO L356 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-03 02:33:06,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 87 treesize of output 28 [2022-11-03 02:33:06,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 31 treesize of output 15 [2022-11-03 02:33:06,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 67 treesize of output 60 [2022-11-03 02:33:06,489 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 02:33:06,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 113 [2022-11-03 02:33:06,521 INFO L356 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-03 02:33:06,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 87 treesize of output 28 [2022-11-03 02:33:06,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:33:06,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 67 treesize of output 60 [2022-11-03 02:33:06,604 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 02:33:06,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 113 [2022-11-03 02:33:06,637 INFO L356 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-03 02:33:06,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 87 treesize of output 28 [2022-11-03 02:33:06,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:33:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:06,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:11,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 53 treesize of output 49 [2022-11-03 02:33:11,681 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:33:11,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 96 [2022-11-03 02:33:11,934 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 02:33:11,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103524 treesize of output 102468