./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ssina.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/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_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ssina.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/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_79d14175-e678-49d5-9a37-d3064510a68b/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 4c9ca6c94ff0fae82185b19014fc033eef7a37c04f3b092e10c4eebb38e41241 --- 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 02:35:26,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:35:26,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:35:26,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:35:26,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:35:26,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:35:26,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:35:26,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:35:26,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:35:26,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:35:26,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:35:26,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:35:26,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:35:26,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:35:26,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:35:26,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:35:26,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:35:26,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:35:26,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:35:26,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:35:26,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:35:26,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:35:26,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:35:26,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:35:26,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:35:26,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:35:26,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:35:26,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:35:26,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:35:26,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:35:26,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:35:26,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:35:26,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:35:26,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:35:26,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:35:26,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:35:26,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:35:26,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:35:26,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:35:26,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:35:26,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:35:26,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:35:26,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:35:26,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:35:26,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:35:26,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:35:26,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:35:26,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:35:26,747 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:35:26,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:35:26,748 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:35:26,748 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:35:26,749 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:35:26,750 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:35:26,750 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:35:26,750 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:35:26,751 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:35:26,751 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:35:26,751 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:35:26,751 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:35:26,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:35:26,753 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:35:26,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:35:26,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:35:26,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:35:26,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:35:26,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:35:26,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:35:26,755 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:35:26,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:35:26,756 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:35:26,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:35:26,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:35:26,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:35:26,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:35:26,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:35:26,758 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:35:26,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:35:26,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:35:26,758 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:35:26,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:35:26,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:35:26,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:35:26,760 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_79d14175-e678-49d5-9a37-d3064510a68b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c9ca6c94ff0fae82185b19014fc033eef7a37c04f3b092e10c4eebb38e41241 [2022-11-03 02:35:27,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:35:27,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:35:27,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:35:27,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:35:27,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:35:27,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/array-fpi/ssina.c [2022-11-03 02:35:27,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/data/1f705947b/161298d61edc4a7e9fa9752ce22b4db4/FLAG9787bf077 [2022-11-03 02:35:27,694 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:35:27,694 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/sv-benchmarks/c/array-fpi/ssina.c [2022-11-03 02:35:27,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/data/1f705947b/161298d61edc4a7e9fa9752ce22b4db4/FLAG9787bf077 [2022-11-03 02:35:28,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/data/1f705947b/161298d61edc4a7e9fa9752ce22b4db4 [2022-11-03 02:35:28,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:35:28,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:35:28,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:35:28,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:35:28,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:35:28,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1033c71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28, skipping insertion in model container [2022-11-03 02:35:28,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:35:28,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:35:28,300 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_79d14175-e678-49d5-9a37-d3064510a68b/sv-benchmarks/c/array-fpi/ssina.c[588,601] [2022-11-03 02:35:28,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:35:28,328 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:35:28,340 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_79d14175-e678-49d5-9a37-d3064510a68b/sv-benchmarks/c/array-fpi/ssina.c[588,601] [2022-11-03 02:35:28,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:35:28,364 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:35:28,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28 WrapperNode [2022-11-03 02:35:28,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:35:28,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:35:28,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:35:28,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:35:28,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,415 INFO L138 Inliner]: procedures = 17, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 111 [2022-11-03 02:35:28,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:35:28,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:35:28,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:35:28,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:35:28,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:35:28,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:35:28,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:35:28,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:35:28,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (1/1) ... [2022-11-03 02:35:28,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:35:28,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:28,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:35:28,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:35:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:35:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:35:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:35:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:35:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:35:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:35:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:35:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:35:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:35:28,599 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:35:28,601 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:35:28,858 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:35:28,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:35:28,917 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:35:28,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:35:28 BoogieIcfgContainer [2022-11-03 02:35:28,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:35:28,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:35:28,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:35:28,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:35:28,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:35:28" (1/3) ... [2022-11-03 02:35:28,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b988b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:35:28, skipping insertion in model container [2022-11-03 02:35:28,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:35:28" (2/3) ... [2022-11-03 02:35:28,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b988b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:35:28, skipping insertion in model container [2022-11-03 02:35:28,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:35:28" (3/3) ... [2022-11-03 02:35:28,929 INFO L112 eAbstractionObserver]: Analyzing ICFG ssina.c [2022-11-03 02:35:28,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:35:28,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:35:28,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:35:29,004 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;@719679d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:35:29,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:35:29,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:29,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:35:29,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:29,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:29,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:35:29,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:29,020 INFO L85 PathProgramCache]: Analyzing trace with hash 718799361, now seen corresponding path program 1 times [2022-11-03 02:35:29,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:29,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636183101] [2022-11-03 02:35:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:29,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:29,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:29,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636183101] [2022-11-03 02:35:29,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:35:29,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490183577] [2022-11-03 02:35:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:29,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:29,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:29,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:29,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:35:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:29,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:35:29,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:29,544 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 02:35:29,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:35:29,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490183577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:35:29,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:35:29,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:35:29,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473053767] [2022-11-03 02:35:29,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:35:29,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:35:29,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:29,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:35:29,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:35:29,601 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:29,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:29,680 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2022-11-03 02:35:29,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:35:29,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:35:29,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:29,698 INFO L225 Difference]: With dead ends: 26 [2022-11-03 02:35:29,699 INFO L226 Difference]: Without dead ends: 13 [2022-11-03 02:35:29,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 02:35:29,708 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:29,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:35:29,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-03 02:35:29,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-03 02:35:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2022-11-03 02:35:29,748 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 18 transitions. Word has length 10 [2022-11-03 02:35:29,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:29,749 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 18 transitions. [2022-11-03 02:35:29,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:29,750 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2022-11-03 02:35:29,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:35:29,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:29,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:29,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 02:35:29,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 02:35:29,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:35:29,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:29,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1166592007, now seen corresponding path program 1 times [2022-11-03 02:35:29,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:29,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387902341] [2022-11-03 02:35:29,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:29,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:30,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:30,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387902341] [2022-11-03 02:35:30,023 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:35:30,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814920486] [2022-11-03 02:35:30,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:30,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:30,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:30,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:30,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:35:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:30,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:35:30,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:35:30,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:35:30,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814920486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:35:30,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:35:30,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:35:30,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282401883] [2022-11-03 02:35:30,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:35:30,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:35:30,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:30,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:35:30,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:35:30,144 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:30,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:30,198 INFO L93 Difference]: Finished difference Result 30 states and 42 transitions. [2022-11-03 02:35:30,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:35:30,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 02:35:30,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:30,201 INFO L225 Difference]: With dead ends: 30 [2022-11-03 02:35:30,201 INFO L226 Difference]: Without dead ends: 22 [2022-11-03 02:35:30,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:35:30,204 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 22 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:30,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 6 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:35:30,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-03 02:35:30,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2022-11-03 02:35:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2022-11-03 02:35:30,219 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 11 [2022-11-03 02:35:30,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:30,219 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-11-03 02:35:30,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-11-03 02:35:30,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:35:30,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:30,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:30,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 02:35:30,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:30,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:35:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:30,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1067586039, now seen corresponding path program 1 times [2022-11-03 02:35:30,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:30,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969435639] [2022-11-03 02:35:30,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:30,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:30,519 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:35:30,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591013926] [2022-11-03 02:35:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:30,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:30,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:30,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:30,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:35:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:30,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 02:35:30,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:30,680 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 10 treesize of output 8 [2022-11-03 02:35:30,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:35:30,772 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 19 treesize of output 18 [2022-11-03 02:35:30,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-03 02:35:30,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-03 02:35:31,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-11-03 02:35:31,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-03 02:35:31,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-03 02:35:31,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2022-11-03 02:35:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:35:31,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:35:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:35:32,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:32,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969435639] [2022-11-03 02:35:32,855 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:35:32,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591013926] [2022-11-03 02:35:32,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591013926] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:35:32,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1194186880] [2022-11-03 02:35:32,877 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:35:32,877 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:35:32,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:35:32,887 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:35:32,888 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:35:32,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:32,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:32,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:33,049 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:35:33,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:35:33,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:33,077 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 02:35:33,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:33,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:33,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-03 02:35:33,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:33,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:33,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-03 02:35:33,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:33,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:33,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:33,402 INFO L356 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2022-11-03 02:35:33,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 336 treesize of output 332 [2022-11-03 02:35:33,531 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 16 treesize of output 12 [2022-11-03 02:35:33,584 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:35:33,585 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:35:33,676 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:35:33,677 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:35:33,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:33,757 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:35:33,758 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:35:33,836 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:35:33,836 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:35:33,857 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 02:35:33,894 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-11-03 02:35:33,894 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 2 case distinctions, treesize of input 29 treesize of output 28 [2022-11-03 02:35:33,987 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:35:33,988 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:35:34,076 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:35:34,077 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:35:34,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:34,129 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:35:34,129 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:35:34,210 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:35:34,211 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:35:34,267 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:35:35,210 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '324#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:35:35,211 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:35:35,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:35:35,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2022-11-03 02:35:35,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597438713] [2022-11-03 02:35:35,211 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:35:35,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 02:35:35,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:35,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 02:35:35,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2022-11-03 02:35:35,214 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 25 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:40,634 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2022-11-03 02:35:40,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:35:40,636 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:35:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:40,638 INFO L225 Difference]: With dead ends: 46 [2022-11-03 02:35:40,638 INFO L226 Difference]: Without dead ends: 37 [2022-11-03 02:35:40,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 10 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=132, Invalid=1128, Unknown=0, NotChecked=0, Total=1260 [2022-11-03 02:35:40,640 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:40,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 318 Invalid, 0 Unknown, 38 Unchecked, 1.7s Time] [2022-11-03 02:35:40,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-03 02:35:40,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2022-11-03 02:35:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 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 02:35:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2022-11-03 02:35:40,651 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 15 [2022-11-03 02:35:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:40,652 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2022-11-03 02:35:40,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2022-11-03 02:35:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:35:40,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:40,653 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:40,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:35:40,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:40,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:35:40,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1116341309, now seen corresponding path program 2 times [2022-11-03 02:35:40,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:40,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769525139] [2022-11-03 02:35:40,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:40,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:40,905 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:35:40,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408147657] [2022-11-03 02:35:40,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:35:40,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:40,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:40,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:40,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:35:41,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:35:41,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:35:41,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:35:41,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:35:41,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:35:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:35:41,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:41,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769525139] [2022-11-03 02:35:41,124 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:35:41,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408147657] [2022-11-03 02:35:41,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408147657] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:35:41,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [34664444] [2022-11-03 02:35:41,131 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:35:41,131 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:35:41,132 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:35:41,132 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:35:41,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:35:41,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,236 INFO L356 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-11-03 02:35:41,236 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-11-03 02:35:41,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,337 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:35:41,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:35:41,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,358 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 02:35:41,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-03 02:35:41,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:41,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:41,551 INFO L356 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2022-11-03 02:35:41,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 336 treesize of output 332 [2022-11-03 02:35:41,627 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 16 treesize of output 12 [2022-11-03 02:35:41,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:41,665 INFO L356 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-03 02:35:41,666 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:35:41,739 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:35:41,739 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:35:41,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:41,838 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:35:41,844 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:35:41,936 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:35:41,937 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:35:41,978 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 02:35:41,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:42,015 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-11-03 02:35:42,015 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 2 case distinctions, treesize of input 29 treesize of output 28 [2022-11-03 02:35:42,092 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:35:42,092 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:35:42,131 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:42,155 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:35:42,155 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:35:42,254 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:35:42,254 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:35:42,304 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:35:42,820 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '571#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:35:42,820 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:35:42,820 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:35:42,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-03 02:35:42,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128494062] [2022-11-03 02:35:42,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:35:42,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:35:42,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:42,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:35:42,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:35:42,822 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 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 02:35:43,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:43,042 INFO L93 Difference]: Finished difference Result 59 states and 77 transitions. [2022-11-03 02:35:43,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:35:43,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 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 16 [2022-11-03 02:35:43,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:43,043 INFO L225 Difference]: With dead ends: 59 [2022-11-03 02:35:43,043 INFO L226 Difference]: Without dead ends: 48 [2022-11-03 02:35:43,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 11 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:35:43,045 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 32 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:43,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 25 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:35:43,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-03 02:35:43,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 33. [2022-11-03 02:35:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 0 states have call successors, (0), 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 02:35:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2022-11-03 02:35:43,061 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 16 [2022-11-03 02:35:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:43,062 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2022-11-03 02:35:43,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 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 02:35:43,063 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2022-11-03 02:35:43,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:35:43,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:43,065 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:43,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:35:43,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-03 02:35:43,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:35:43,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:43,271 INFO L85 PathProgramCache]: Analyzing trace with hash 139844905, now seen corresponding path program 3 times [2022-11-03 02:35:43,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:43,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279013194] [2022-11-03 02:35:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:43,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:43,313 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:35:43,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306330773] [2022-11-03 02:35:43,317 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:35:43,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:43,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:43,318 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:43,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:35:43,397 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:35:43,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:35:43,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:35:43,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:43,439 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:35:43,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:35:43,475 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:35:43,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:43,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279013194] [2022-11-03 02:35:43,476 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:35:43,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306330773] [2022-11-03 02:35:43,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306330773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:35:43,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [777206035] [2022-11-03 02:35:43,478 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:35:43,478 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:35:43,479 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:35:43,479 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:35:43,479 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:35:43,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,569 INFO L356 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-11-03 02:35:43,569 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-11-03 02:35:43,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:35:43,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,676 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:35:43,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:35:43,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-03 02:35:43,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:43,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:43,846 INFO L356 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2022-11-03 02:35:43,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 336 treesize of output 332 [2022-11-03 02:35:43,935 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 16 treesize of output 12 [2022-11-03 02:35:43,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:43,974 INFO L356 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-03 02:35:43,974 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:35:44,053 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:35:44,053 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:35:44,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:44,126 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:35:44,127 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:35:44,201 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:35:44,202 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:35:44,227 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 02:35:44,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:44,268 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-11-03 02:35:44,271 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 2 case distinctions, treesize of input 29 treesize of output 28 [2022-11-03 02:35:44,346 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:35:44,346 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:35:44,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:44,414 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:35:44,414 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:35:44,478 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:35:44,479 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:35:44,499 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:35:44,883 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '847#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:35:44,883 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:35:44,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:35:44,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-03 02:35:44,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166236435] [2022-11-03 02:35:44,884 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:35:44,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:35:44,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:44,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:35:44,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:35:44,885 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:45,028 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2022-11-03 02:35:45,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:35:45,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 02:35:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:45,031 INFO L225 Difference]: With dead ends: 62 [2022-11-03 02:35:45,031 INFO L226 Difference]: Without dead ends: 32 [2022-11-03 02:35:45,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 9 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:35:45,036 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:45,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 21 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:35:45,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-03 02:35:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2022-11-03 02:35:45,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-03 02:35:45,044 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 17 [2022-11-03 02:35:45,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:45,045 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-03 02:35:45,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:35:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-03 02:35:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:35:45,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:45,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:45,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:35:45,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:45,259 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:35:45,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:45,259 INFO L85 PathProgramCache]: Analyzing trace with hash -706779071, now seen corresponding path program 4 times [2022-11-03 02:35:45,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:45,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453523001] [2022-11-03 02:35:45,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:45,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:45,293 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:35:45,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007998029] [2022-11-03 02:35:45,306 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:35:45,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:45,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:45,311 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:45,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:35:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:45,411 WARN L261 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 83 conjunts are in the unsatisfiable core [2022-11-03 02:35:45,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:45,425 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 10 treesize of output 8 [2022-11-03 02:35:45,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:35:45,450 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 19 treesize of output 18 [2022-11-03 02:35:45,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:35:45,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:45,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2022-11-03 02:35:45,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,614 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 0 case distinctions, treesize of input 47 treesize of output 35 [2022-11-03 02:35:45,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:45,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 42 [2022-11-03 02:35:45,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,771 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 0 case distinctions, treesize of input 61 treesize of output 39 [2022-11-03 02:35:45,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,830 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 0 case distinctions, treesize of input 49 treesize of output 39 [2022-11-03 02:35:45,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:45,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 44 [2022-11-03 02:35:45,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,958 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 0 case distinctions, treesize of input 59 treesize of output 39 [2022-11-03 02:35:46,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:46,083 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 0 case distinctions, treesize of input 63 treesize of output 41 [2022-11-03 02:35:46,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:46,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:46,171 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-03 02:35:46,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-03 02:35:46,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2022-11-03 02:35:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:35:46,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:36:21,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:21,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453523001] [2022-11-03 02:36:21,638 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:36:21,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007998029] [2022-11-03 02:36:21,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007998029] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:21,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [695663411] [2022-11-03 02:36:21,640 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:36:21,640 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:21,641 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:21,641 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:21,641 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:21,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,736 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:36:21,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:36:21,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-03 02:36:21,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,773 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 02:36:21,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 02:36:21,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:21,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:21,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:21,950 INFO L356 Elim1Store]: treesize reduction 106, result has 20.9 percent of original size [2022-11-03 02:36:21,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 331 treesize of output 333 [2022-11-03 02:36:22,083 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 16 treesize of output 12 [2022-11-03 02:36:22,118 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:22,118 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:36:22,185 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:22,185 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:22,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:22,250 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:22,250 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:36:22,347 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:36:22,347 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:36:22,377 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 02:36:22,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:22,410 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-11-03 02:36:22,411 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 2 case distinctions, treesize of input 29 treesize of output 28 [2022-11-03 02:36:22,486 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:22,486 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:22,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:22,546 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:22,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:36:22,632 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:36:22,633 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:36:22,668 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:26,167 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1146#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:36:26,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:26,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:36:26,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 35 [2022-11-03 02:36:26,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985873138] [2022-11-03 02:36:26,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:26,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 02:36:26,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 02:36:26,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1414, Unknown=14, NotChecked=0, Total=1560 [2022-11-03 02:36:26,170 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 35 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 0 states have call successors, (0), 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 02:36:28,769 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (and (forall ((v_ArrVal_266 Int) (|v_ULTIMATE.start_main_~i~0#1_186| Int)) (or (= .cse0 (select (store (let ((.cse2 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse1 .cse2 (+ .cse3 (select .cse1 .cse2)))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_186|)) v_ArrVal_266) |c_ULTIMATE.start_main_~a~0#1.offset|)) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_186|)))) (forall ((v_ArrVal_266 Int) (|v_ULTIMATE.start_main_~i~0#1_186| Int)) (or (= (select (store (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse3 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_186|)) v_ArrVal_266) |c_ULTIMATE.start_main_~a~0#1.offset|) .cse0) (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_186|)))))) is different from false [2022-11-03 02:36:28,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:29,000 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2022-11-03 02:36:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-03 02:36:29,002 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-03 02:36:29,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:29,002 INFO L225 Difference]: With dead ends: 49 [2022-11-03 02:36:29,002 INFO L226 Difference]: Without dead ends: 47 [2022-11-03 02:36:29,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 13 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 40.5s TimeCoverageRelationStatistics Valid=145, Invalid=1566, Unknown=15, NotChecked=80, Total=1806 [2022-11-03 02:36:29,004 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 406 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:29,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 43 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 406 Unchecked, 0.1s Time] [2022-11-03 02:36:29,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-03 02:36:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2022-11-03 02:36:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2022-11-03 02:36:29,024 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 20 [2022-11-03 02:36:29,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:29,024 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2022-11-03 02:36:29,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 0 states have call successors, (0), 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 02:36:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2022-11-03 02:36:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:36:29,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:29,026 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:36:29,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:29,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:29,243 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:36:29,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:29,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1272127801, now seen corresponding path program 5 times [2022-11-03 02:36:29,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:29,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105025103] [2022-11-03 02:36:29,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:29,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:29,279 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:36:29,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060527469] [2022-11-03 02:36:29,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:36:29,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:29,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:29,288 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:29,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:36:29,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:36:29,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:36:29,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:36:29,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:36:29,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:36:29,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:29,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105025103] [2022-11-03 02:36:29,622 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:36:29,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060527469] [2022-11-03 02:36:29,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060527469] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:29,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1948591770] [2022-11-03 02:36:29,625 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:36:29,625 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:29,625 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:29,626 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:29,626 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,716 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:36:29,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:36:29,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,732 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 02:36:29,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,752 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-03 02:36:29,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 02:36:29,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:29,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:29,905 INFO L356 Elim1Store]: treesize reduction 106, result has 20.9 percent of original size [2022-11-03 02:36:29,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 331 treesize of output 333 [2022-11-03 02:36:30,032 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 16 treesize of output 12 [2022-11-03 02:36:30,069 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:30,069 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:36:30,134 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:30,134 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:30,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:30,195 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:30,196 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:36:30,255 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:36:30,255 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:36:30,278 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 02:36:30,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:30,312 INFO L356 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2022-11-03 02:36:30,313 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 2 case distinctions, treesize of input 34 treesize of output 33 [2022-11-03 02:36:30,378 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:30,378 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:30,445 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:30,446 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:30,489 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:30,489 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:36:30,574 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:36:30,574 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:36:30,617 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:31,086 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1458#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:36:31,087 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:31,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:36:31,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-03 02:36:31,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036704826] [2022-11-03 02:36:31,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:31,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:36:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:31,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:36:31,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:36:31,089 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:31,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:31,419 INFO L93 Difference]: Finished difference Result 89 states and 110 transitions. [2022-11-03 02:36:31,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:36:31,419 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-03 02:36:31,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:31,420 INFO L225 Difference]: With dead ends: 89 [2022-11-03 02:36:31,420 INFO L226 Difference]: Without dead ends: 70 [2022-11-03 02:36:31,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:36:31,422 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 40 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:31,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 70 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:36:31,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-03 02:36:31,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 42. [2022-11-03 02:36:31,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 41 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 02:36:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2022-11-03 02:36:31,439 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 21 [2022-11-03 02:36:31,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:31,439 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2022-11-03 02:36:31,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2022-11-03 02:36:31,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:36:31,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:31,440 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:36:31,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:31,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:31,641 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:36:31,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:31,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1017009823, now seen corresponding path program 6 times [2022-11-03 02:36:31,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:31,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367861824] [2022-11-03 02:36:31,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:31,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:31,672 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:36:31,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473649873] [2022-11-03 02:36:31,673 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:36:31,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:31,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:31,675 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:31,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 02:36:31,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:36:31,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:36:31,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:36:31,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:31,832 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 02:36:31,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 02:36:31,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:31,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367861824] [2022-11-03 02:36:31,898 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:36:31,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473649873] [2022-11-03 02:36:31,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473649873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:31,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1872595221] [2022-11-03 02:36:31,900 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:36:31,900 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:31,901 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:31,901 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:31,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:31,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:31,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:31,984 INFO L356 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-11-03 02:36:31,984 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-11-03 02:36:31,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:32,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:32,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:32,071 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:36:32,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:36:32,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:32,101 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 02:36:32,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:32,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:32,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-03 02:36:32,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:32,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:32,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:32,266 INFO L356 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2022-11-03 02:36:32,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 336 treesize of output 332 [2022-11-03 02:36:32,331 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 16 treesize of output 12 [2022-11-03 02:36:32,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:32,373 INFO L356 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-03 02:36:32,373 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:36:32,448 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:32,448 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:32,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:32,517 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:32,517 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:36:32,579 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:36:32,579 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:36:32,595 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 02:36:32,627 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-11-03 02:36:32,627 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 2 case distinctions, treesize of input 29 treesize of output 28 [2022-11-03 02:36:32,691 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:32,691 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:32,773 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:32,773 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:32,816 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:32,816 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:36:32,885 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:36:32,885 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:36:32,933 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:33,453 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1840#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:36:33,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:33,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:36:33,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-03 02:36:33,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986190497] [2022-11-03 02:36:33,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:33,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:36:33,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:33,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:36:33,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:36:33,457 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 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 02:36:33,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:33,634 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2022-11-03 02:36:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:36:33,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 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 22 [2022-11-03 02:36:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:33,635 INFO L225 Difference]: With dead ends: 84 [2022-11-03 02:36:33,636 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 02:36:33,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 12 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:36:33,637 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 34 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:33,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 34 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:36:33,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 02:36:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 44. [2022-11-03 02:36:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2022-11-03 02:36:33,652 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 22 [2022-11-03 02:36:33,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:33,653 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2022-11-03 02:36:33,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 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 02:36:33,653 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2022-11-03 02:36:33,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:36:33,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:33,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:36:33,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:33,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:33,859 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:36:33,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:33,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1720314290, now seen corresponding path program 1 times [2022-11-03 02:36:33,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:33,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850294904] [2022-11-03 02:36:33,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:33,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:33,886 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:36:33,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585903765] [2022-11-03 02:36:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:33,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:33,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:33,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:33,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 02:36:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:33,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-03 02:36:33,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:33,997 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 10 treesize of output 8 [2022-11-03 02:36:34,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-03 02:36:34,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:34,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:36:34,085 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 23 [2022-11-03 02:36:34,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:34,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:36:34,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:34,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:34,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2022-11-03 02:36:34,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:34,187 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 0 case distinctions, treesize of input 48 treesize of output 34 [2022-11-03 02:36:34,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2022-11-03 02:36:34,222 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 25 treesize of output 21 [2022-11-03 02:36:34,246 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-11-03 02:36:34,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:34,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:36:34,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:34,297 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 0 case distinctions, treesize of input 35 treesize of output 29 [2022-11-03 02:36:34,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:34,338 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 0 case distinctions, treesize of input 45 treesize of output 31 [2022-11-03 02:36:34,540 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:34,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 44 [2022-11-03 02:36:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:36:34,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:45,276 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:45,277 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 75 [2022-11-03 02:36:45,290 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1)) (.cse1 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= .cse0 (+ (select .cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (not (= .cse0 (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))))) is different from false [2022-11-03 02:36:45,345 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int)) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse4 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse3 .cse4 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse3 .cse4))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1))) (or (not (= .cse0 (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) (= .cse0 (+ (select .cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))))) is different from false [2022-11-03 02:36:45,768 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int)) (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse4 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse4 .cse3 (+ (select .cse5 .cse3) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1))) (or (not (= .cse0 (+ (select v_arrayElimArr_1 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (= (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse1 .cse3)) .cse0)))))) is different from false [2022-11-03 02:36:45,798 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (~N~0 Int) (v_ArrVal_460 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse2 (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_460)))) (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse6 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse5 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (+ v_ArrVal_460 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse5 .cse3 (+ (select .cse6 .cse3) (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1))) (or (not (= (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|)) .cse1)) (= (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~a~0#1.offset| .cse1)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse0 .cse3)) .cse1)))))) is different from false [2022-11-03 02:36:45,824 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:45,825 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 417 treesize of output 339 [2022-11-03 02:36:45,853 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_1 (Array Int Int)) (~N~0 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2))) (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse6 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse5 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse5 .cse3 (+ (select .cse6 .cse3) (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|))))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1)) (.cse2 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (= .cse0 (+ (select (select (store .cse1 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse2 .cse3))) (not (= .cse0 (+ (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))))))))) is different from false [2022-11-03 02:36:45,916 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_1 (Array Int Int)) (~N~0 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse2 (store (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_2))) (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse6 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse5 (store .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_2 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse5 .cse3 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse6 .cse3))))))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1))) (let ((.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1)) (.cse1 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (or (not (= .cse0 (+ (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|)))) (= .cse0 (+ (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~a~0#1.offset| .cse0)) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse1 .cse3)))))))) is different from false [2022-11-03 02:36:45,948 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:45,948 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 909 treesize of output 374 [2022-11-03 02:36:45,962 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 715 treesize of output 677 [2022-11-03 02:36:46,130 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:46,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 2371 treesize of output 1989 [2022-11-03 02:36:46,240 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:46,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 5740 treesize of output 4728 [2022-11-03 02:36:46,352 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:46,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 4724 treesize of output 4686 [2022-11-03 02:36:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2022-11-03 02:36:47,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:47,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850294904] [2022-11-03 02:36:47,731 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:36:47,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585903765] [2022-11-03 02:36:47,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585903765] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:47,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1170881916] [2022-11-03 02:36:47,733 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-03 02:36:47,733 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:47,734 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:47,734 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:47,734 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:47,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,830 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:36:47,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:36:47,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,844 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 02:36:47,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-03 02:36:47,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 02:36:47,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:47,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:47,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:48,019 INFO L356 Elim1Store]: treesize reduction 106, result has 20.9 percent of original size [2022-11-03 02:36:48,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 331 treesize of output 333 [2022-11-03 02:36:48,110 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 16 treesize of output 12 [2022-11-03 02:36:48,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:48,150 INFO L356 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-03 02:36:48,151 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:36:48,220 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:48,221 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:48,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:48,280 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:48,280 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:36:48,347 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:36:48,348 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:36:48,371 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 02:36:48,398 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-11-03 02:36:48,399 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 2 case distinctions, treesize of input 29 treesize of output 28 [2022-11-03 02:36:48,474 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:48,474 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:48,548 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:36:48,549 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:36:48,596 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:36:48,596 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:36:48,684 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:36:48,685 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:36:48,803 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:49,621 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2235#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:36:49,621 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:49,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:36:49,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 34 [2022-11-03 02:36:49,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910585156] [2022-11-03 02:36:49,622 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:49,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-03 02:36:49,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:49,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-03 02:36:49,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=903, Unknown=28, NotChecked=402, Total=1482 [2022-11-03 02:36:49,623 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 34 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:56,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:56,593 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2022-11-03 02:36:56,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 02:36:56,594 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-03 02:36:56,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:56,594 INFO L225 Difference]: With dead ends: 50 [2022-11-03 02:36:56,594 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 02:36:56,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 21 SyntacticMatches, 16 SemanticMatches, 42 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=193, Invalid=1200, Unknown=37, NotChecked=462, Total=1892 [2022-11-03 02:36:56,596 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 226 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:56,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 40 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 182 Invalid, 0 Unknown, 226 Unchecked, 0.3s Time] [2022-11-03 02:36:56,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 02:36:56,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-11-03 02:36:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 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 02:36:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-11-03 02:36:56,606 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 23 [2022-11-03 02:36:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:56,607 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-11-03 02:36:56,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-03 02:36:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:36:56,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:56,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:36:56,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:56,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:56,811 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:36:56,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:56,811 INFO L85 PathProgramCache]: Analyzing trace with hash 445363657, now seen corresponding path program 7 times [2022-11-03 02:36:56,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:56,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812411191] [2022-11-03 02:36:56,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:56,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:56,850 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:36:56,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1519770185] [2022-11-03 02:36:56,850 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:36:56,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:56,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:56,852 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:56,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 02:36:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:56,991 WARN L261 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 109 conjunts are in the unsatisfiable core [2022-11-03 02:36:56,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:57,003 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 02:36:57,009 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 10 treesize of output 8 [2022-11-03 02:36:57,028 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 19 treesize of output 18 [2022-11-03 02:36:57,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:36:57,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,101 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-03 02:36:57,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:57,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-11-03 02:36:57,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:57,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2022-11-03 02:36:57,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 51 [2022-11-03 02:36:57,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:57,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-11-03 02:36:57,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 49 [2022-11-03 02:36:57,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2022-11-03 02:36:57,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2022-11-03 02:36:57,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:57,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-11-03 02:36:57,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:57,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 55 [2022-11-03 02:36:57,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:57,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 47 [2022-11-03 02:36:58,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:58,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-03 02:36:58,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:58,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:58,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 47 [2022-11-03 02:36:58,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:58,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:58,226 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-03 02:36:58,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 52 [2022-11-03 02:36:58,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2022-11-03 02:36:58,456 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 02:36:58,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:38:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:38:50,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:50,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812411191] [2022-11-03 02:38:50,869 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:38:50,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519770185] [2022-11-03 02:38:50,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519770185] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:38:50,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2060035831] [2022-11-03 02:38:50,871 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:38:50,871 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:38:50,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:38:50,872 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:38:50,872 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:38:50,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:50,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:38:50,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:50,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:50,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:50,978 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:38:50,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:38:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:50,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:51,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 39 [2022-11-03 02:38:51,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:51,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:51,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 02:38:51,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:51,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:51,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:51,154 INFO L356 Elim1Store]: treesize reduction 106, result has 20.9 percent of original size [2022-11-03 02:38:51,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 331 treesize of output 333 [2022-11-03 02:38:51,227 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 16 treesize of output 12 [2022-11-03 02:38:51,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:51,269 INFO L356 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-03 02:38:51,269 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:38:51,336 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:38:51,336 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:38:51,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:51,397 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:38:51,397 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:38:51,478 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:38:51,479 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:38:51,507 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 02:38:51,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:51,550 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-11-03 02:38:51,550 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 2 case distinctions, treesize of input 29 treesize of output 28 [2022-11-03 02:38:51,621 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:38:51,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:38:51,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:51,681 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:38:51,681 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:38:51,745 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:38:51,746 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:38:51,763 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:39:02,542 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2583#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:39:02,542 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:39:02,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:39:02,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 45 [2022-11-03 02:39:02,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978475856] [2022-11-03 02:39:02,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:39:02,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-03 02:39:02,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:02,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-03 02:39:02,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2245, Unknown=32, NotChecked=0, Total=2450 [2022-11-03 02:39:02,545 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 45 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:15,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:15,319 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2022-11-03 02:39:15,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 02:39:15,320 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-03 02:39:15,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:15,320 INFO L225 Difference]: With dead ends: 61 [2022-11-03 02:39:15,321 INFO L226 Difference]: Without dead ends: 59 [2022-11-03 02:39:15,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 12 SyntacticMatches, 13 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 131.8s TimeCoverageRelationStatistics Valid=199, Invalid=2630, Unknown=33, NotChecked=0, Total=2862 [2022-11-03 02:39:15,322 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 482 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:15,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 77 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 0 Unknown, 482 Unchecked, 0.3s Time] [2022-11-03 02:39:15,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-03 02:39:15,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2022-11-03 02:39:15,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 47 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2022-11-03 02:39:15,350 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 25 [2022-11-03 02:39:15,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:15,350 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2022-11-03 02:39:15,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2022-11-03 02:39:15,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 02:39:15,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:15,351 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:15,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:39:15,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:39:15,552 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:15,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1692492547, now seen corresponding path program 8 times [2022-11-03 02:39:15,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:15,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244253147] [2022-11-03 02:39:15,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:15,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:15,594 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:39:15,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599049973] [2022-11-03 02:39:15,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:39:15,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:39:15,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:39:15,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:39:15,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 02:39:15,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:39:15,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:39:15,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 02:39:15,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:39:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:39:15,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:39:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 02:39:15,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:15,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244253147] [2022-11-03 02:39:15,987 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:39:15,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599049973] [2022-11-03 02:39:15,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599049973] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:39:15,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [711848493] [2022-11-03 02:39:15,988 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:39:15,989 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:39:15,989 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:39:15,989 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:39:15,989 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:39:16,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:39:16,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,092 INFO L356 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-11-03 02:39:16,092 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-11-03 02:39:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,177 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:39:16,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:39:16,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-03 02:39:16,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:16,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:16,317 INFO L356 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2022-11-03 02:39:16,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 336 treesize of output 332 [2022-11-03 02:39:16,383 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 16 treesize of output 12 [2022-11-03 02:39:16,420 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:39:16,421 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:39:16,494 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:39:16,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:39:16,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:16,552 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:39:16,553 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 2 case distinctions, treesize of input 31 treesize of output 34 [2022-11-03 02:39:16,626 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:39:16,627 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:39:16,653 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 02:39:16,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:16,692 INFO L356 Elim1Store]: treesize reduction 18, result has 47.1 percent of original size [2022-11-03 02:39:16,692 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 2 case distinctions, treesize of input 29 treesize of output 28 [2022-11-03 02:39:16,761 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:39:16,762 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:39:16,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:16,822 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:39:16,823 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:39:16,888 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:39:16,888 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:39:16,905 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:39:17,398 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2962#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:39:17,398 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:39:17,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:39:17,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-03 02:39:17,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636396460] [2022-11-03 02:39:17,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:39:17,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 02:39:17,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:17,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 02:39:17,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:39:17,400 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 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 02:39:17,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:17,877 INFO L93 Difference]: Finished difference Result 114 states and 136 transitions. [2022-11-03 02:39:17,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 02:39:17,877 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 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 26 [2022-11-03 02:39:17,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:17,878 INFO L225 Difference]: With dead ends: 114 [2022-11-03 02:39:17,878 INFO L226 Difference]: Without dead ends: 91 [2022-11-03 02:39:17,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 41 SyntacticMatches, 17 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=173, Invalid=639, Unknown=0, NotChecked=0, Total=812 [2022-11-03 02:39:17,880 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 52 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:17,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 119 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:39:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-03 02:39:17,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 50. [2022-11-03 02:39:17,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:39:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-03 02:39:17,907 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 26 [2022-11-03 02:39:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:17,908 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-03 02:39:17,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 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 02:39:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-03 02:39:17,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:39:17,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:17,909 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:17,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:39:18,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:39:18,113 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:18,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1180293052, now seen corresponding path program 9 times [2022-11-03 02:39:18,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:18,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657754672] [2022-11-03 02:39:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:18,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:18,152 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:39:18,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [978579228] [2022-11-03 02:39:18,161 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:39:18,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:39:18,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:39:18,162 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:39:18,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 02:39:18,266 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:39:18,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:39:18,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 02:39:18,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:39:18,350 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:39:18,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:39:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:39:18,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:18,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657754672] [2022-11-03 02:39:18,424 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:39:18,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978579228] [2022-11-03 02:39:18,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978579228] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:39:18,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168256] [2022-11-03 02:39:18,426 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 02:39:18,426 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:39:18,426 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:39:18,427 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:39:18,427 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:39:18,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,541 INFO L356 Elim1Store]: treesize reduction 71, result has 30.4 percent of original size [2022-11-03 02:39:18,541 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 3 case distinctions, treesize of input 29 treesize of output 54 [2022-11-03 02:39:18,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:39:18,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,646 INFO L356 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2022-11-03 02:39:18,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2022-11-03 02:39:18,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2022-11-03 02:39:18,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:18,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:18,811 INFO L356 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2022-11-03 02:39:18,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 336 treesize of output 332 [2022-11-03 02:39:18,890 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 16 treesize of output 12 [2022-11-03 02:39:18,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:18,925 INFO L356 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2022-11-03 02:39:18,926 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 2 case distinctions, treesize of input 26 treesize of output 34 [2022-11-03 02:39:19,001 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:39:19,002 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:39:19,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:19,062 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:39:19,063 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:39:19,122 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:39:19,122 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:39:19,138 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 02:39:19,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:19,165 INFO L356 Elim1Store]: treesize reduction 23, result has 47.7 percent of original size [2022-11-03 02:39:19,165 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 2 case distinctions, treesize of input 34 treesize of output 33 [2022-11-03 02:39:19,234 INFO L356 Elim1Store]: treesize reduction 29, result has 60.8 percent of original size [2022-11-03 02:39:19,235 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 2 case distinctions, treesize of input 26 treesize of output 54 [2022-11-03 02:39:19,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:19,295 INFO L356 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2022-11-03 02:39:19,295 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 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-03 02:39:19,356 INFO L356 Elim1Store]: treesize reduction 24, result has 62.5 percent of original size [2022-11-03 02:39:19,356 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 2 case distinctions, treesize of input 31 treesize of output 54 [2022-11-03 02:39:19,372 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:39:19,870 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3439#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 8))) |ULTIMATE.start_main_#t~mem20#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1) |ULTIMATE.start_main_#t~mem20#1|) 1 0)) (= |#NULL.base| 0))' at error location [2022-11-03 02:39:19,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:39:19,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:39:19,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-11-03 02:39:19,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618407034] [2022-11-03 02:39:19,871 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:39:19,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 02:39:19,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:19,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 02:39:19,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-11-03 02:39:19,872 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 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 02:39:20,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:20,123 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2022-11-03 02:39:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:39:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 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 27 [2022-11-03 02:39:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:20,124 INFO L225 Difference]: With dead ends: 106 [2022-11-03 02:39:20,124 INFO L226 Difference]: Without dead ends: 80 [2022-11-03 02:39:20,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 47 SyntacticMatches, 14 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:39:20,125 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 74 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:20,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 45 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:39:20,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-03 02:39:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 56. [2022-11-03 02:39:20,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 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 02:39:20,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-11-03 02:39:20,147 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 27 [2022-11-03 02:39:20,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:20,147 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-11-03 02:39:20,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 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 02:39:20,148 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-11-03 02:39:20,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 02:39:20,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:20,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:20,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:39:20,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:39:20,353 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:20,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:20,353 INFO L85 PathProgramCache]: Analyzing trace with hash 680033222, now seen corresponding path program 2 times [2022-11-03 02:39:20,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:20,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217130851] [2022-11-03 02:39:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:20,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:20,376 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:39:20,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701302303] [2022-11-03 02:39:20,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:39:20,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:39:20,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:39:20,377 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:39:20,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d14175-e678-49d5-9a37-d3064510a68b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 02:39:20,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:39:20,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:39:20,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 88 conjunts are in the unsatisfiable core [2022-11-03 02:39:20,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:39:20,711 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 02:39:20,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,736 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 02:39:20,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 02:39:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,841 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 23 [2022-11-03 02:39:20,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,874 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 23 [2022-11-03 02:39:20,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:39:20,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:20,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2022-11-03 02:39:20,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:20,982 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 0 case distinctions, treesize of input 48 treesize of output 34 [2022-11-03 02:39:21,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,053 INFO L356 Elim1Store]: treesize reduction 30, result has 49.2 percent of original size [2022-11-03 02:39:21,053 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 2 case distinctions, treesize of input 42 treesize of output 55 [2022-11-03 02:39:21,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 50 [2022-11-03 02:39:21,141 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 45 treesize of output 39 [2022-11-03 02:39:21,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,188 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 20 treesize of output 20 [2022-11-03 02:39:21,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,204 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 20 treesize of output 20 [2022-11-03 02:39:21,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 27 [2022-11-03 02:39:21,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:21,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 34 [2022-11-03 02:39:21,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,330 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 0 case distinctions, treesize of input 45 treesize of output 31 [2022-11-03 02:39:21,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:21,384 INFO L356 Elim1Store]: treesize reduction 30, result has 49.2 percent of original size [2022-11-03 02:39:21,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2022-11-03 02:39:21,660 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:21,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 44 [2022-11-03 02:39:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:39:21,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:39:28,034 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:28,034 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 168 [2022-11-03 02:39:28,058 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_arrayElimArr_4 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int)) (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse3 .cse2 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse2)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse1 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (or (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) c_~N~0) (= (select .cse0 .cse2) .cse1))))) (not (< 1 c_~N~0))) is different from false [2022-11-03 02:39:28,348 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 1 c_~N~0)) (forall ((|ULTIMATE.start_main_~i~0#1| Int) (v_arrayElimArr_4 (Array Int Int)) (v_ArrVal_847 Int) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int)) (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_847)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse3 .cse2 (+ (select .cse4 .cse2) (select (select (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse1 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (or (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) c_~N~0) (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse1)) (= (select .cse0 .cse2) .cse1)))))) is different from false [2022-11-03 02:39:28,409 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 1 c_~N~0)) (forall ((v_arrayElimArr_4 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_490| Int) (v_ArrVal_847 Int) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int)) (let ((.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse7 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse6 .cse7 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse6 .cse7)))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_490|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_847)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse1 (+ (select .cse4 .cse1) (select (select (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse2 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_490| 1) c_~N~0) (= (select .cse0 .cse1) .cse2) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) c_~N~0) (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse2))))))) is different from false [2022-11-03 02:39:28,514 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_arrayElimArr_4 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_490| Int) (v_ArrVal_847 Int) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int)) (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (* 8 |c_ULTIMATE.start_main_~i~0#1|))) (let ((.cse7 (+ .cse10 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (let ((.cse9 (+ .cse10 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store .cse8 .cse9 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse8 .cse9)))))) (store .cse6 .cse7 (+ (select .cse8 .cse7) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse6) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_490|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_847)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse2 (+ (select .cse4 .cse2) (select (select (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse1 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_490| 1) c_~N~0) (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse1)) (= (select .cse0 .cse2) .cse1) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) c_~N~0))))) (not (< 1 c_~N~0))) is different from false [2022-11-03 02:39:28,618 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_arrayElimArr_4 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_490| Int) (v_ArrVal_847 Int) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int)) (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (let ((.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse6 (store .cse7 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse6 .cse2 (+ (select .cse7 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse6) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_490|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_847)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse2 (+ (select .cse4 .cse2) (select (select (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse1 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (or (< (+ |v_ULTIMATE.start_main_~i~0#1_490| 1) c_~N~0) (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) c_~N~0) (= (select .cse0 .cse2) .cse1))))) (not (< 1 c_~N~0))) is different from false [2022-11-03 02:39:28,724 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 1 c_~N~0)) (forall ((v_arrayElimArr_4 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_490| Int) (v_ArrVal_847 Int) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int) (v_ArrVal_842 Int)) (let ((.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse4 (store (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_842)))) (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| (store (let ((.cse8 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse7 (store .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (+ v_ArrVal_842 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|))))) (store .cse7 .cse1 (+ (select .cse8 .cse1) (select (select (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_490|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_847))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse1 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse1)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse2 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (or (= (select .cse0 .cse1) .cse2) (< (+ |v_ULTIMATE.start_main_~i~0#1_490| 1) c_~N~0) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) c_~N~0) (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse2))))))) is different from false [2022-11-03 02:39:28,762 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:28,763 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1298 treesize of output 1052 [2022-11-03 02:39:28,836 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_arrayElimArr_5 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_490| Int) (v_ArrVal_847 Int) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int)) (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse4 (store (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_5))) (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| (store (let ((.cse8 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse7 (store .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse7 .cse2 (+ (select (select (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse8 .cse2))))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_490|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_847))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_4 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse2 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse2)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse1 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (or (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_490| 1) c_~N~0) (= (select .cse0 .cse2) .cse1) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) c_~N~0))))) (not (< 1 c_~N~0))) is different from false [2022-11-03 02:39:28,929 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_arrayElimArr_5 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (|v_ULTIMATE.start_main_~i~0#1_490| Int) (v_ArrVal_847 Int) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int)) (let ((.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (store (let ((.cse5 (store (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_5))) (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| (store (let ((.cse8 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse7 (store .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_5 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse7 .cse1 (+ (select (select (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse8 .cse1))))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_490|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_847))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse4 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_4 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse1 (+ (select .cse4 .cse1) (select (select (store .cse5 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse2 (+ (* c_~N~0 2) (* c_~N~0 c_~N~0) 1))) (or (= (select .cse0 .cse1) .cse2) (< (+ |v_ULTIMATE.start_main_~i~0#1_490| 1) c_~N~0) (not (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) .cse2)) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) c_~N~0))))) (not (< 1 c_~N~0))) is different from false [2022-11-03 02:39:31,898 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_498| Int) (v_arrayElimArr_5 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (~N~0 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_837 Int) (|v_ULTIMATE.start_main_~i~0#1_490| Int) (v_ArrVal_847 Int) (|v_ULTIMATE.start_main_~i~0#1_482| Int) (v_ArrVal_858 Int)) (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (store (let ((.cse4 (store (let ((.cse6 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_498|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_837)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_5))) (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| (store (let ((.cse8 (select .cse6 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse7 (store .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_5 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse7 .cse2 (+ (select (select (store .cse6 |c_ULTIMATE.start_main_~a~0#1.base| .cse7) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse8 .cse2))))) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_490|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_847))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_4))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse3 (store .cse5 |c_ULTIMATE.start_main_~a~0#1.offset| (+ (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) (select v_arrayElimArr_4 |ULTIMATE.start_main_~#sum~0#1.offset|))))) (store .cse3 .cse2 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse5 .cse2)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |v_ULTIMATE.start_main_~i~0#1_482|)) v_ArrVal_858)) (.cse0 (+ (* 2 ~N~0) (* ~N~0 ~N~0) 1))) (or (not (= .cse0 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|))) (not (< |v_ULTIMATE.start_main_~i~0#1_498| ~N~0)) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_498|)) (< (+ |v_ULTIMATE.start_main_~i~0#1_498| 1) ~N~0) (< (+ |v_ULTIMATE.start_main_~i~0#1_482| 1) ~N~0) (not (< 1 ~N~0)) (= (select .cse1 .cse2) .cse0) (< (+ |v_ULTIMATE.start_main_~i~0#1_490| 1) ~N~0))))) is different from false [2022-11-03 02:39:32,010 INFO L356 Elim1Store]: treesize reduction 63, result has 37.6 percent of original size [2022-11-03 02:39:32,011 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 3362 treesize of output 1131 [2022-11-03 02:39:32,050 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 4001 treesize of output 3741 [2022-11-03 02:39:32,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:32,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:32,614 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:32,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 38703 treesize of output 34911 [2022-11-03 02:39:32,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:33,059 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:33,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 35691 treesize of output 34503 [2022-11-03 02:39:33,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:33,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:33,281 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:33,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89511 treesize of output 77497 [2022-11-03 02:40:22,726 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:26,104 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:26,774 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:27,294 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:31,247 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:34,633 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:35,374 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:35,965 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:39,319 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:39,376 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:40,803 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:41,065 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:41,304 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:41,840 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:42,093 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:42,295 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:43,588 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:40:45,497 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:40:46,367 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:49,432 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:49,971 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:50,313 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:40:50,342 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:50,669 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:50,726 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:54,115 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:40:55,723 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:55,997 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:56,199 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:56,733 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:56,968 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:40:57,167 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:40:58,403 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:41:01,560 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:03,215 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:03,461 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:03,662 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:41:04,180 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:04,428 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:04,651 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:41:05,901 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:41:08,526 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:10,432 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:10,676 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:11,290 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:11,531 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:11,847 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:12,947 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:41:13,109 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:41:14,475 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:14,796 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:16,375 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:16,683 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:17,605 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:17,922 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:18,824 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:20,765 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:21,009 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:21,611 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:21,861 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:22,199 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:23,072 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:24,957 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:25,201 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:25,847 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:26,093 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:26,414 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:27,290 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:29,213 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:29,460 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:30,078 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:30,324 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:30,646 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:31,416 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:33,370 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:33,610 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:34,260 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:34,523 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:34,928 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:41:36,619 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:37,946 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:39,535 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:39,770 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:39,977 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:41:40,504 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:40,749 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:40,957 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:41:42,190 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:41:45,081 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:41:46,680 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:46,922 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:47,128 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:41:47,648 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:47,924 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:48,115 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:41:49,294 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:41:55,283 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:41:56,964 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:00,174 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:01,869 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:04,411 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:06,114 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:08,439 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:42:09,006 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:09,311 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:10,354 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:42:10,927 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:11,222 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:12,002 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:42:12,574 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:12,866 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:13,657 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:42:14,228 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:14,522 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:15,327 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:42:16,056 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:16,345 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:20,110 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:21,802 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:26,980 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:31,008 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:42:36,305 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:42:37,082 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:42:42,986 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:42:44,386 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:42:49,479 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:42:50,854 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:42:52,729 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:42:54,085 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:42:56,597 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:42:58,387 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:43:00,162 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:43:02,064 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:43:03,886 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:43:13,271 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:43:14,649 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:43:19,559 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:43:20,950 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:43:21,629 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:27,147 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:43:28,531 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:43:32,393 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:40,289 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:40,610 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:40,935 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:41,113 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:41,808 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:43,701 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:44,019 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:44,374 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:44,448 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:44,729 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:45,990 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:43:46,140 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:43:48,692 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:43:49,509 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:43:49,601 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:49,766 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:50,142 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:43:56,369 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:56,677 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:43:57,030 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:57,104 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:43:57,392 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:05,853 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:06,162 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:06,530 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:06,598 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:06,877 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:15,014 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:15,318 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:15,694 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:15,764 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:16,082 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:18,313 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:44:20,819 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:44:23,368 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:44:25,902 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:44:28,572 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:44:32,346 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:44:34,236 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:34,569 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:34,954 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:35,036 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:35,334 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:43,646 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:43,964 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:44,317 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:44,390 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:44,668 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:44:52,802 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:54,696 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:44:58,353 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:00,225 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:03,284 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:05,246 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:08,050 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:45:08,665 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:08,982 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:10,189 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:45:10,829 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:11,169 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:12,037 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:45:12,683 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:13,044 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:14,009 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:45:14,634 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:14,971 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:15,917 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:45:16,552 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:16,878 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:20,932 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:22,853 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:34,065 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:48,402 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:45:49,506 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:45:54,712 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:45:54,746 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:00,106 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:00,145 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:02,631 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:02,669 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:04,327 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:46:05,982 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:06,086 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:06,515 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:06,622 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:17,200 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:46:18,668 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:18,757 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:19,135 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:19,224 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:21,770 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:46:23,308 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:23,404 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:23,803 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:23,912 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:26,890 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:46:28,482 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:28,585 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:29,010 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:29,113 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:31,666 WARN L718 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2022-11-03 02:46:33,208 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:33,308 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:33,702 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:46:33,800 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:46:39,489 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:39,522 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:44,360 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:44,397 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:46,718 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:46,756 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:51,249 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:51,286 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:56,429 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:56,465 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:58,861 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:46:58,896 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:03,585 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:03,619 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:08,753 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:08,785 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:10,972 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:11,005 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:20,020 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:20,340 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:20,672 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:20,862 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:21,577 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:23,514 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:23,840 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:24,211 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:24,282 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:24,588 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:25,895 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:47:26,064 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:47:28,748 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:47:29,593 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:47:29,692 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:29,865 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:30,263 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:47:36,873 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:37,209 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:37,607 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:37,677 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:38,005 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:47,251 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:47,615 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:48,043 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:48,112 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:48,420 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:58,428 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:58,792 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:47:59,221 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:59,292 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:47:59,594 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:01,933 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:48:04,614 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:48:07,319 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:48:09,985 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:48:12,789 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:48:16,774 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:48:18,816 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:19,173 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:19,578 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:19,646 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:19,925 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:28,752 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:29,088 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:29,468 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:29,538 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:29,836 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:38,715 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:39,120 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:39,472 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:39,675 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:40,523 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:42,614 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:42,978 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:43,385 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:43,480 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:43,801 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:45,235 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:48:45,419 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:48:48,461 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:48:49,390 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:48:49,492 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:49,680 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:50,104 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-11-03 02:48:57,295 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:57,681 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:48:58,144 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:58,228 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:48:58,541 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:07,704 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:08,114 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:08,489 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:49:08,567 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:49:08,869 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:17,634 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:18,077 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:18,462 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:49:18,534 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:49:18,868 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:21,319 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:49:24,116 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:49:26,877 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:49:29,743 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:49:32,519 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-11-03 02:49:36,650 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-11-03 02:49:38,738 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:39,080 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:39,515 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:49:39,594 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:49:39,914 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:49,111 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:49,498 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:49:49,918 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:49:50,005 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:49:50,314 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:50:03,017 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:05,052 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:08,969 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:10,974 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:13,796 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:15,724 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:18,375 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:50:19,065 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:19,407 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:20,640 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:50:21,290 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:21,644 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:22,611 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:50:23,236 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:23,575 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:24,469 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:50:25,159 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:25,499 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:26,428 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-11-03 02:50:27,096 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-11-03 02:50:27,446 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts.