./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8 --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 bda512f5ab4e84c08e80fd02a1c07c8fba5ca60aa45d55edfde2cc268dd1288e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:24:54,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:24:54,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:24:54,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:24:54,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:24:54,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:24:54,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:24:54,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:24:54,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:24:54,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:24:54,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:24:54,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:24:54,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:24:54,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:24:54,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:24:54,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:24:54,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:24:54,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:24:54,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:24:54,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:24:54,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:24:54,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:24:54,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:24:54,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:24:54,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:24:54,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:24:54,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:24:54,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:24:54,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:24:54,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:24:54,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:24:54,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:24:54,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:24:54,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:24:54,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:24:54,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:24:54,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:24:54,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:24:54,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:24:54,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:24:54,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:24:54,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:24:54,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:24:54,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:24:54,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:24:54,831 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:24:54,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:24:54,832 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:24:54,832 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:24:54,832 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:24:54,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:24:54,833 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:24:54,834 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:24:54,834 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:24:54,835 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:24:54,835 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:24:54,835 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:24:54,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:24:54,836 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:24:54,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:24:54,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:24:54,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:24:54,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:24:54,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:24:54,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:24:54,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:24:54,838 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:24:54,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:24:54,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:24:54,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:24:54,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:24:54,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:24:54,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:24:54,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:24:54,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:24:54,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:24:54,842 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:24:54,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:24:54,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:24:54,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:24:54,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:24:54,843 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda512f5ab4e84c08e80fd02a1c07c8fba5ca60aa45d55edfde2cc268dd1288e [2021-11-07 02:24:55,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:24:55,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:24:55,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:24:55,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:24:55,113 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:24:55,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2021-11-07 02:24:55,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/data/77b45222d/92d36fccf1b241478404dba6d556d708/FLAGd707df1da [2021-11-07 02:24:55,717 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:24:55,717 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2021-11-07 02:24:55,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/data/77b45222d/92d36fccf1b241478404dba6d556d708/FLAGd707df1da [2021-11-07 02:24:56,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/data/77b45222d/92d36fccf1b241478404dba6d556d708 [2021-11-07 02:24:56,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:24:56,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:24:56,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:24:56,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:24:56,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:24:56,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1446af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56, skipping insertion in model container [2021-11-07 02:24:56,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:24:56,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:24:56,360 WARN L228 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_76f66aad-7d94-454f-97d8-fe1972daad67/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c[490,503] [2021-11-07 02:24:56,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:24:56,412 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:24:56,433 WARN L228 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_76f66aad-7d94-454f-97d8-fe1972daad67/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c[490,503] [2021-11-07 02:24:56,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:24:56,478 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:24:56,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56 WrapperNode [2021-11-07 02:24:56,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:24:56,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:24:56,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:24:56,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:24:56,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:24:56,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:24:56,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:24:56,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:24:56,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:24:56,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:24:56,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:24:56,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:24:56,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (1/1) ... [2021-11-07 02:24:56,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:24:56,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:24:56,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:24:56,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:24:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:24:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:24:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:24:56,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:24:57,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:24:57,231 INFO L299 CfgBuilder]: Removed 25 assume(true) statements. [2021-11-07 02:24:57,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:57 BoogieIcfgContainer [2021-11-07 02:24:57,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:24:57,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:24:57,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:24:57,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:24:57,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:24:56" (1/3) ... [2021-11-07 02:24:57,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b2ceef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:24:57, skipping insertion in model container [2021-11-07 02:24:57,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:24:56" (2/3) ... [2021-11-07 02:24:57,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b2ceef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:24:57, skipping insertion in model container [2021-11-07 02:24:57,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:57" (3/3) ... [2021-11-07 02:24:57,242 INFO L111 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound2.c [2021-11-07 02:24:57,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:24:57,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 02:24:57,297 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:24:57,304 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:24:57,304 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 02:24:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 29 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) [2021-11-07 02:24:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 02:24:57,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:57,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 02:24:57,325 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:24:57,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:57,331 INFO L85 PathProgramCache]: Analyzing trace with hash 180063849, now seen corresponding path program 1 times [2021-11-07 02:24:57,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:57,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676242252] [2021-11-07 02:24:57,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:57,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:57,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:57,501 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:57,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676242252] [2021-11-07 02:24:57,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676242252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:57,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:57,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:24:57,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899062203] [2021-11-07 02:24:57,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:24:57,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:57,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:24:57,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:24:57,525 INFO L87 Difference]: Start difference. First operand has 30 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 29 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:57,541 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2021-11-07 02:24:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:24:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 02:24:57,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:57,550 INFO L225 Difference]: With dead ends: 59 [2021-11-07 02:24:57,551 INFO L226 Difference]: Without dead ends: 28 [2021-11-07 02:24:57,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:24:57,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-07 02:24:57,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-07 02:24:57,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:57,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-11-07 02:24:57,589 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2021-11-07 02:24:57,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:57,590 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-11-07 02:24:57,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:57,590 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-11-07 02:24:57,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 02:24:57,591 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:57,591 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 02:24:57,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:24:57,591 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:24:57,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1181966144, now seen corresponding path program 1 times [2021-11-07 02:24:57,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:57,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764509609] [2021-11-07 02:24:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:57,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:57,635 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:24:57,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210323023] [2021-11-07 02:24:57,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:57,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:24:57,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:24:57,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:24:57,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 02:24:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:57,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:24:57,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:57,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:57,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:57,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764509609] [2021-11-07 02:24:57,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:24:57,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210323023] [2021-11-07 02:24:57,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210323023] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:57,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:57,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:24:57,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125149752] [2021-11-07 02:24:57,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:24:57,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:57,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:24:57,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:57,853 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:57,882 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2021-11-07 02:24:57,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:24:57,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 02:24:57,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:57,897 INFO L225 Difference]: With dead ends: 55 [2021-11-07 02:24:57,897 INFO L226 Difference]: Without dead ends: 51 [2021-11-07 02:24:57,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:57,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-07 02:24:57,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 30. [2021-11-07 02:24:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 29 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) [2021-11-07 02:24:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2021-11-07 02:24:57,903 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 6 [2021-11-07 02:24:57,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:57,904 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2021-11-07 02:24:57,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2021-11-07 02:24:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:24:57,905 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:57,905 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:57,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:58,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:24:58,106 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:24:58,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:58,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1984810813, now seen corresponding path program 1 times [2021-11-07 02:24:58,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:58,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260912172] [2021-11-07 02:24:58,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:58,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:58,127 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:24:58,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17599076] [2021-11-07 02:24:58,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:58,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:24:58,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:24:58,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:24:58,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 02:24:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:58,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:24:58,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:58,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:58,668 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:58,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260912172] [2021-11-07 02:24:58,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:24:58,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17599076] [2021-11-07 02:24:58,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17599076] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:58,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:58,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:24:58,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685134524] [2021-11-07 02:24:58,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:24:58,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:58,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:24:58,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:24:58,680 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:58,819 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2021-11-07 02:24:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:24:58,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 02:24:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:58,823 INFO L225 Difference]: With dead ends: 51 [2021-11-07 02:24:58,824 INFO L226 Difference]: Without dead ends: 49 [2021-11-07 02:24:58,825 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:24:58,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-07 02:24:58,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2021-11-07 02:24:58,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:58,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-11-07 02:24:58,846 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2021-11-07 02:24:58,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:58,847 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-11-07 02:24:58,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:58,847 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-11-07 02:24:58,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 02:24:58,848 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:58,848 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:58,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:59,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:24:59,067 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:24:59,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:59,067 INFO L85 PathProgramCache]: Analyzing trace with hash 437869184, now seen corresponding path program 1 times [2021-11-07 02:24:59,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:59,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360366919] [2021-11-07 02:24:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:59,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:59,095 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:24:59,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777905836] [2021-11-07 02:24:59,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:59,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:24:59,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:24:59,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:24:59,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 02:24:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:59,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:24:59,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:59,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:59,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:59,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:59,576 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:24:59,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360366919] [2021-11-07 02:24:59,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:24:59,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777905836] [2021-11-07 02:24:59,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777905836] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:59,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:59,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:24:59,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7056886] [2021-11-07 02:24:59,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:24:59,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:24:59,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:24:59,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:24:59,579 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 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) [2021-11-07 02:24:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:59,660 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2021-11-07 02:24:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:24:59,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 02:24:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:59,662 INFO L225 Difference]: With dead ends: 49 [2021-11-07 02:24:59,663 INFO L226 Difference]: Without dead ends: 47 [2021-11-07 02:24:59,663 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:24:59,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-07 02:24:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2021-11-07 02:24:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-11-07 02:24:59,675 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 10 [2021-11-07 02:24:59,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:59,675 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-11-07 02:24:59,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 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) [2021-11-07 02:24:59,676 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-11-07 02:24:59,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:24:59,676 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:59,677 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:59,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:59,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:24:59,893 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:24:59,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:59,893 INFO L85 PathProgramCache]: Analyzing trace with hash 482994473, now seen corresponding path program 1 times [2021-11-07 02:24:59,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:24:59,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176101292] [2021-11-07 02:24:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:59,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:24:59,910 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:24:59,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908574977] [2021-11-07 02:24:59,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:59,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:24:59,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:24:59,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:24:59,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 02:25:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:00,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:25:00,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:00,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:00,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:00,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176101292] [2021-11-07 02:25:00,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:00,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908574977] [2021-11-07 02:25:00,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908574977] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:00,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1333385952] [2021-11-07 02:25:00,142 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-07 02:25:00,143 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:25:00,150 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:25:00,156 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:25:00,156 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:25:00,207 INFO L180 QuantifierPusher]: treesize reduction 19, result has 89.9 percent of original size [2021-11-07 02:25:00,211 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:00,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:25:00,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:00,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:25:00,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-07 02:25:00,269 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 21=[|v_#valid_18|]} [2021-11-07 02:25:00,286 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:25:00,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:00,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:00,289 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:00,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:25:00,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:00,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:00,312 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:00,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,390 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:00,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:25:00,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:00,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:00,426 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:00,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,468 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-07 02:25:00,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 02:25:00,476 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:25:00,476 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:320, output treesize:131 [2021-11-07 02:25:00,498 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,513 INFO L185 QuantifierPusher]: treesize reduction 7, result has 95.6 percent of original size 151 [2021-11-07 02:25:00,523 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.9 percent of original size [2021-11-07 02:25:00,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-11-07 02:25:00,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:00,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-07 02:25:00,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:00,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:01,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:01,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:01,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:01,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:01,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:01,201 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:01,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:01,246 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:01,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:01,256 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:01,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:01,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-07 02:25:01,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-07 02:25:01,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:01,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:01,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-11-07 02:25:01,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 742 [2021-11-07 02:25:01,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 753 [2021-11-07 02:25:01,343 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:25:03,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1333385952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:03,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:25:03,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2021-11-07 02:25:03,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496116531] [2021-11-07 02:25:03,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:25:03,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:03,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:25:03,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:25:03,142 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:03,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:03,312 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2021-11-07 02:25:03,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:25:03,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 02:25:03,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:03,314 INFO L225 Difference]: With dead ends: 81 [2021-11-07 02:25:03,315 INFO L226 Difference]: Without dead ends: 77 [2021-11-07 02:25:03,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:25:03,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-07 02:25:03,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 49. [2021-11-07 02:25:03,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 48 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) [2021-11-07 02:25:03,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2021-11-07 02:25:03,326 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 11 [2021-11-07 02:25:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:03,326 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2021-11-07 02:25:03,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2021-11-07 02:25:03,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 02:25:03,327 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:03,327 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:03,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-07 02:25:03,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:03,560 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:03,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:03,561 INFO L85 PathProgramCache]: Analyzing trace with hash -114351517, now seen corresponding path program 1 times [2021-11-07 02:25:03,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:03,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122348155] [2021-11-07 02:25:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:03,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:03,576 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:03,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1283805721] [2021-11-07 02:25:03,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:03,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:03,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:03,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:03,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 02:25:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:03,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 02:25:03,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:03,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:03,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:03,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122348155] [2021-11-07 02:25:03,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:03,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283805721] [2021-11-07 02:25:03,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283805721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:03,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:03,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:25:03,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565053750] [2021-11-07 02:25:03,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:25:03,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:03,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:25:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:25:03,873 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:03,993 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2021-11-07 02:25:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:25:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 02:25:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:03,995 INFO L225 Difference]: With dead ends: 88 [2021-11-07 02:25:03,996 INFO L226 Difference]: Without dead ends: 86 [2021-11-07 02:25:03,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:25:03,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-07 02:25:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2021-11-07 02:25:04,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 64 states have (on average 1.3125) internal successors, (84), 68 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:04,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2021-11-07 02:25:04,030 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 12 [2021-11-07 02:25:04,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:04,030 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2021-11-07 02:25:04,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:04,031 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2021-11-07 02:25:04,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 02:25:04,032 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:04,032 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:04,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:04,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-07 02:25:04,249 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:04,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:04,249 INFO L85 PathProgramCache]: Analyzing trace with hash 287933158, now seen corresponding path program 1 times [2021-11-07 02:25:04,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:04,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058525718] [2021-11-07 02:25:04,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:04,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:04,260 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:04,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964160957] [2021-11-07 02:25:04,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:04,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:04,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:04,262 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:04,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 02:25:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:04,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 02:25:04,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:04,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:04,799 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:04,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058525718] [2021-11-07 02:25:04,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:04,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964160957] [2021-11-07 02:25:04,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964160957] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:04,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [109956645] [2021-11-07 02:25:04,802 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-07 02:25:04,802 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:25:04,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:25:04,803 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:25:04,803 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:25:04,814 INFO L180 QuantifierPusher]: treesize reduction 19, result has 89.9 percent of original size [2021-11-07 02:25:04,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:04,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:25:04,817 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:04,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,819 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:25:04,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-07 02:25:04,832 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 21=[|v_#valid_19|]} [2021-11-07 02:25:04,841 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:25:04,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:04,842 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:04,843 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:04,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:25:04,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:04,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:04,861 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:04,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:04,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:04,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:25:04,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:04,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:04,897 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:04,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:04,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,908 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-07 02:25:04,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 02:25:04,914 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:25:04,914 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:320, output treesize:131 [2021-11-07 02:25:04,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-11-07 02:25:04,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-07 02:25:04,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:04,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-11-07 02:25:04,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:04,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:04,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:05,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:05,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:05,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 686 [2021-11-07 02:25:05,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 697 [2021-11-07 02:25:05,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:05,480 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:25:08,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:08,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:25:08,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-07 02:25:08,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186287535] [2021-11-07 02:25:08,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:25:08,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:08,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:25:08,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-11-07 02:25:08,042 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:08,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:08,779 INFO L93 Difference]: Finished difference Result 149 states and 176 transitions. [2021-11-07 02:25:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 02:25:08,780 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 02:25:08,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:08,781 INFO L225 Difference]: With dead ends: 149 [2021-11-07 02:25:08,781 INFO L226 Difference]: Without dead ends: 147 [2021-11-07 02:25:08,782 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2021-11-07 02:25:08,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-07 02:25:08,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 100. [2021-11-07 02:25:08,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 99 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:08,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 126 transitions. [2021-11-07 02:25:08,821 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 126 transitions. Word has length 13 [2021-11-07 02:25:08,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:08,821 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 126 transitions. [2021-11-07 02:25:08,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:08,822 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2021-11-07 02:25:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 02:25:08,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:08,823 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:08,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:09,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:09,048 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:09,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1777499878, now seen corresponding path program 1 times [2021-11-07 02:25:09,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:09,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700488117] [2021-11-07 02:25:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:09,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:09,060 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:09,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [686228432] [2021-11-07 02:25:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:09,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:09,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:09,062 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:09,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 02:25:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:09,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 02:25:09,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:09,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:09,386 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:09,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700488117] [2021-11-07 02:25:09,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:09,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686228432] [2021-11-07 02:25:09,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686228432] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:09,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:09,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2021-11-07 02:25:09,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212398253] [2021-11-07 02:25:09,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:25:09,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:09,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:25:09,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:25:09,389 INFO L87 Difference]: Start difference. First operand 100 states and 126 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:09,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:09,749 INFO L93 Difference]: Finished difference Result 129 states and 159 transitions. [2021-11-07 02:25:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 02:25:09,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-07 02:25:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:09,753 INFO L225 Difference]: With dead ends: 129 [2021-11-07 02:25:09,753 INFO L226 Difference]: Without dead ends: 127 [2021-11-07 02:25:09,753 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:25:09,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-07 02:25:09,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 98. [2021-11-07 02:25:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 97 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:09,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 119 transitions. [2021-11-07 02:25:09,790 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 119 transitions. Word has length 14 [2021-11-07 02:25:09,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:09,791 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 119 transitions. [2021-11-07 02:25:09,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 119 transitions. [2021-11-07 02:25:09,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 02:25:09,792 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:09,792 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:09,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:10,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-07 02:25:10,009 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:10,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1826015209, now seen corresponding path program 1 times [2021-11-07 02:25:10,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:10,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84438455] [2021-11-07 02:25:10,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:10,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:10,020 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:10,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053904006] [2021-11-07 02:25:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:10,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:10,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:10,022 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:10,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 02:25:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:10,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 02:25:10,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:10,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:10,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:10,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84438455] [2021-11-07 02:25:10,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:10,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053904006] [2021-11-07 02:25:10,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053904006] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:10,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [227304597] [2021-11-07 02:25:10,946 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-07 02:25:10,946 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:25:10,946 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:25:10,947 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:25:10,947 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:25:10,956 INFO L180 QuantifierPusher]: treesize reduction 19, result has 89.9 percent of original size [2021-11-07 02:25:10,957 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:10,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:10,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:25:10,959 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:10,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:10,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:25:10,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-07 02:25:10,967 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 21=[|v_#valid_20|]} [2021-11-07 02:25:10,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:10,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:10,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:10,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:25:10,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:10,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:10,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:10,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:10,988 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:10,994 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:25:10,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:10,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:10,996 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:10,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:10,997 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:10,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,003 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:11,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:25:11,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:11,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:11,027 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:11,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,033 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,036 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-07 02:25:11,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 02:25:11,039 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:25:11,040 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:320, output treesize:131 [2021-11-07 02:25:11,050 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-11-07 02:25:11,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-11-07 02:25:11,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,078 INFO L185 QuantifierPusher]: treesize reduction 7, result has 95.5 percent of original size 149 [2021-11-07 02:25:11,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,380 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:11,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:11,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 676 [2021-11-07 02:25:11,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 687 [2021-11-07 02:25:11,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:11,523 INFO L180 QuantifierPusher]: treesize reduction 42, result has 80.2 percent of original size [2021-11-07 02:25:11,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-11-07 02:25:11,535 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:25:14,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:14,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:25:14,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-07 02:25:14,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313708192] [2021-11-07 02:25:14,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:25:14,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:14,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:25:14,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-11-07 02:25:14,615 INFO L87 Difference]: Start difference. First operand 98 states and 119 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:15,769 INFO L93 Difference]: Finished difference Result 128 states and 152 transitions. [2021-11-07 02:25:15,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 02:25:15,769 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 02:25:15,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:15,771 INFO L225 Difference]: With dead ends: 128 [2021-11-07 02:25:15,771 INFO L226 Difference]: Without dead ends: 126 [2021-11-07 02:25:15,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2021-11-07 02:25:15,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-07 02:25:15,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 119. [2021-11-07 02:25:15,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 115 states have (on average 1.2521739130434784) internal successors, (144), 118 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 144 transitions. [2021-11-07 02:25:15,797 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 144 transitions. Word has length 15 [2021-11-07 02:25:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:15,797 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 144 transitions. [2021-11-07 02:25:15,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 144 transitions. [2021-11-07 02:25:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 02:25:15,798 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:15,798 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2021-11-07 02:25:15,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:16,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-07 02:25:16,012 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:16,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:16,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1693929251, now seen corresponding path program 2 times [2021-11-07 02:25:16,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:16,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393815364] [2021-11-07 02:25:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:16,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:16,030 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:16,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69364106] [2021-11-07 02:25:16,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 02:25:16,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:16,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:16,033 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:16,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 02:25:16,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 02:25:16,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 02:25:16,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:25:16,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:16,284 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:16,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:16,347 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:16,347 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:16,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393815364] [2021-11-07 02:25:16,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:16,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69364106] [2021-11-07 02:25:16,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69364106] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:25:16,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:25:16,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:25:16,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757319716] [2021-11-07 02:25:16,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:25:16,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:25:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:25:16,351 INFO L87 Difference]: Start difference. First operand 119 states and 144 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:16,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:16,496 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2021-11-07 02:25:16,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:25:16,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 02:25:16,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:16,497 INFO L225 Difference]: With dead ends: 164 [2021-11-07 02:25:16,497 INFO L226 Difference]: Without dead ends: 123 [2021-11-07 02:25:16,498 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:25:16,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-07 02:25:16,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 114. [2021-11-07 02:25:16,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 113 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2021-11-07 02:25:16,523 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 18 [2021-11-07 02:25:16,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:16,524 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2021-11-07 02:25:16,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2021-11-07 02:25:16,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 02:25:16,530 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:16,530 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:16,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:16,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:16,748 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:16,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:16,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1532792300, now seen corresponding path program 1 times [2021-11-07 02:25:16,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:16,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387610781] [2021-11-07 02:25:16,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:16,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:16,771 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:16,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503913048] [2021-11-07 02:25:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:16,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:16,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:16,783 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:16,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 02:25:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:17,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-07 02:25:17,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:17,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:18,183 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:18,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387610781] [2021-11-07 02:25:18,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:18,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503913048] [2021-11-07 02:25:18,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503913048] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:18,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2013132020] [2021-11-07 02:25:18,186 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2021-11-07 02:25:18,186 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:25:18,187 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:25:18,187 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:25:18,187 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:25:18,211 INFO L180 QuantifierPusher]: treesize reduction 19, result has 89.9 percent of original size [2021-11-07 02:25:18,211 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:18,212 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:25:18,213 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:18,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:25:18,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-07 02:25:18,223 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_20|], 21=[|v_#valid_21|]} [2021-11-07 02:25:18,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:25:18,246 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:18,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:18,248 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:18,255 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:25:18,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:18,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:18,258 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:18,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,263 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:18,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:25:18,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:18,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:18,290 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:18,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,296 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,300 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-07 02:25:18,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 02:25:18,303 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:25:18,303 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:320, output treesize:131 [2021-11-07 02:25:18,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,320 INFO L185 QuantifierPusher]: treesize reduction 7, result has 95.6 percent of original size 151 [2021-11-07 02:25:18,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,382 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.9 percent of original size [2021-11-07 02:25:18,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-07 02:25:18,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-11-07 02:25:18,442 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.9 percent of original size [2021-11-07 02:25:18,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-07 02:25:18,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-11-07 02:25:18,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 407 [2021-11-07 02:25:18,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-11-07 02:25:18,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 431 [2021-11-07 02:25:18,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,582 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 467 [2021-11-07 02:25:18,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 518 [2021-11-07 02:25:18,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 606 [2021-11-07 02:25:18,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 518 [2021-11-07 02:25:18,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,811 INFO L180 QuantifierPusher]: treesize reduction 42, result has 76.4 percent of original size [2021-11-07 02:25:18,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 02:25:18,820 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-11-07 02:25:18,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:18,906 INFO L180 QuantifierPusher]: treesize reduction 42, result has 76.4 percent of original size [2021-11-07 02:25:18,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-07 02:25:18,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:25:18,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 02:25:18,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-11-07 02:25:18,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-07 02:25:18,969 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:18,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 282 [2021-11-07 02:25:18,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,005 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:19,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,013 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:19,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,016 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-07 02:25:19,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 02:25:19,019 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:19,020 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 02:25:19,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-11-07 02:25:19,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,063 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:25:19,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,096 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:19,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-07 02:25:19,106 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:19,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,117 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-11-07 02:25:19,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-07 02:25:19,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-11-07 02:25:19,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,191 INFO L180 QuantifierPusher]: treesize reduction 6, result has 90.2 percent of original size [2021-11-07 02:25:19,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:25:19,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 02:25:19,202 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 02:25:19,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:25:19,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:25:19,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-07 02:25:19,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,240 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:19,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 02:25:19,247 INFO L185 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size 129 [2021-11-07 02:25:19,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-07 02:25:19,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,285 INFO L180 QuantifierPusher]: treesize reduction 6, result has 82.9 percent of original size [2021-11-07 02:25:19,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 02:25:19,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,290 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 02:25:19,294 INFO L180 QuantifierPusher]: treesize reduction 6, result has 90.2 percent of original size [2021-11-07 02:25:19,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:25:19,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 02:25:19,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 02:25:19,316 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 02:25:19,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-11-07 02:25:19,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 02:25:19,349 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:19,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:19,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:19,444 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:25:20,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:20,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:25:20,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-11-07 02:25:20,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510276871] [2021-11-07 02:25:20,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 02:25:20,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:20,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 02:25:20,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2021-11-07 02:25:20,761 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 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) [2021-11-07 02:25:24,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:24,212 INFO L93 Difference]: Finished difference Result 367 states and 423 transitions. [2021-11-07 02:25:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-07 02:25:24,213 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 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) Word has length 23 [2021-11-07 02:25:24,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:24,215 INFO L225 Difference]: With dead ends: 367 [2021-11-07 02:25:24,215 INFO L226 Difference]: Without dead ends: 355 [2021-11-07 02:25:24,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1131 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=586, Invalid=3446, Unknown=0, NotChecked=0, Total=4032 [2021-11-07 02:25:24,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-11-07 02:25:24,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 226. [2021-11-07 02:25:24,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 222 states have (on average 1.2027027027027026) internal successors, (267), 225 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 267 transitions. [2021-11-07 02:25:24,281 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 267 transitions. Word has length 23 [2021-11-07 02:25:24,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:24,281 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 267 transitions. [2021-11-07 02:25:24,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 14 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) [2021-11-07 02:25:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 267 transitions. [2021-11-07 02:25:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 02:25:24,283 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:24,283 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:24,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:24,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:24,508 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:24,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:24,509 INFO L85 PathProgramCache]: Analyzing trace with hash -138413951, now seen corresponding path program 1 times [2021-11-07 02:25:24,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:24,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112553681] [2021-11-07 02:25:24,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:24,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:24,520 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:24,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678212519] [2021-11-07 02:25:24,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:24,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:24,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:24,522 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:24,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 02:25:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:24,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:25:24,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:24,985 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:24,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:25,125 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:25,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:25,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112553681] [2021-11-07 02:25:25,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:25,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678212519] [2021-11-07 02:25:25,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678212519] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 02:25:25,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 02:25:25,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-11-07 02:25:25,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851369324] [2021-11-07 02:25:25,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:25:25,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:25,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:25:25,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:25:25,128 INFO L87 Difference]: Start difference. First operand 226 states and 267 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:25,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:25,334 INFO L93 Difference]: Finished difference Result 335 states and 393 transitions. [2021-11-07 02:25:25,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:25:25,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-07 02:25:25,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:25,341 INFO L225 Difference]: With dead ends: 335 [2021-11-07 02:25:25,342 INFO L226 Difference]: Without dead ends: 231 [2021-11-07 02:25:25,343 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:25:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-07 02:25:25,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 168. [2021-11-07 02:25:25,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.1951219512195121) internal successors, (196), 167 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:25,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 196 transitions. [2021-11-07 02:25:25,425 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 196 transitions. Word has length 29 [2021-11-07 02:25:25,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:25,425 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 196 transitions. [2021-11-07 02:25:25,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 196 transitions. [2021-11-07 02:25:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:25:25,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:25,428 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:25,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:25,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:25,652 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:25,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:25,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1954192779, now seen corresponding path program 1 times [2021-11-07 02:25:25,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:25,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988558372] [2021-11-07 02:25:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:25,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:25,669 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:25,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162145627] [2021-11-07 02:25:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:25,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:25,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:25,673 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:25,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 02:25:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:25,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:25:25,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:26,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:26,484 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:26,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988558372] [2021-11-07 02:25:26,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:26,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162145627] [2021-11-07 02:25:26,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162145627] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:26,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [493870376] [2021-11-07 02:25:26,489 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2021-11-07 02:25:26,489 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:25:26,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:25:26,490 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:25:26,490 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:25:26,500 INFO L180 QuantifierPusher]: treesize reduction 19, result has 89.9 percent of original size [2021-11-07 02:25:26,501 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:26,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:25:26,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:26,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:25:26,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-07 02:25:26,509 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_21|], 21=[|v_#valid_22|]} [2021-11-07 02:25:26,515 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:25:26,516 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:26,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,517 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:26,517 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:26,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:25:26,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:26,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,530 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:26,531 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:26,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:26,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:25:26,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,562 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:26,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:26,563 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:26,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,585 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,588 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-07 02:25:26,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 02:25:26,590 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:25:26,591 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:320, output treesize:131 [2021-11-07 02:25:26,607 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-11-07 02:25:26,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-11-07 02:25:26,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-11-07 02:25:26,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-11-07 02:25:26,661 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-07 02:25:26,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-07 02:25:26,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,791 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:26,804 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-11-07 02:25:26,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:26,828 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 585 [2021-11-07 02:25:26,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 617 [2021-11-07 02:25:26,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:26,939 INFO L180 QuantifierPusher]: treesize reduction 60, result has 69.4 percent of original size [2021-11-07 02:25:26,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-07 02:25:26,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:25:26,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 02:25:26,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-07 02:25:26,972 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:26,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,994 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:26,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:26,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 02:25:26,999 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,000 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:25:27,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-11-07 02:25:27,003 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-11-07 02:25:27,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-07 02:25:27,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,022 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-11-07 02:25:27,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,083 INFO L180 QuantifierPusher]: treesize reduction 60, result has 73.9 percent of original size [2021-11-07 02:25:27,086 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,090 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:25:27,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:25:27,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 02:25:27,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-07 02:25:27,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 02:25:27,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 02:25:27,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-07 02:25:27,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,153 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,159 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,161 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 02:25:27,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:25:27,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 02:25:27,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 02:25:27,182 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,187 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 02:25:27,194 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,195 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:25:27,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-11-07 02:25:27,197 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-11-07 02:25:27,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-07 02:25:27,202 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-11-07 02:25:27,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-11-07 02:25:27,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-07 02:25:27,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,297 INFO L180 QuantifierPusher]: treesize reduction 60, result has 73.9 percent of original size [2021-11-07 02:25:27,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,304 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:25:27,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:25:27,316 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:27,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-07 02:25:27,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-07 02:25:27,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-07 02:25:27,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-11-07 02:25:27,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-11-07 02:25:27,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:27,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 02:25:27,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:27,464 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:25:30,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:30,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:25:30,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-07 02:25:30,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760227456] [2021-11-07 02:25:30,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 02:25:30,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:30,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 02:25:30,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2021-11-07 02:25:30,994 INFO L87 Difference]: Start difference. First operand 168 states and 196 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 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) [2021-11-07 02:25:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:31,490 INFO L93 Difference]: Finished difference Result 336 states and 394 transitions. [2021-11-07 02:25:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 02:25:31,491 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 02:25:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:31,492 INFO L225 Difference]: With dead ends: 336 [2021-11-07 02:25:31,492 INFO L226 Difference]: Without dead ends: 208 [2021-11-07 02:25:31,494 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2021-11-07 02:25:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-07 02:25:31,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 189. [2021-11-07 02:25:31,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 185 states have (on average 1.1945945945945946) internal successors, (221), 188 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 221 transitions. [2021-11-07 02:25:31,546 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 221 transitions. Word has length 33 [2021-11-07 02:25:31,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:31,547 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 221 transitions. [2021-11-07 02:25:31,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 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) [2021-11-07 02:25:31,547 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 221 transitions. [2021-11-07 02:25:31,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:25:31,548 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:31,548 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:31,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:31,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:31,769 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash -807356777, now seen corresponding path program 1 times [2021-11-07 02:25:31,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:31,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957068270] [2021-11-07 02:25:31,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:31,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:31,796 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:31,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241605465] [2021-11-07 02:25:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:31,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:31,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:31,798 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:31,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 02:25:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:32,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:25:32,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:32,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:33,000 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:33,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:33,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957068270] [2021-11-07 02:25:33,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:33,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241605465] [2021-11-07 02:25:33,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241605465] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:33,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1114184315] [2021-11-07 02:25:33,004 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-07 02:25:33,004 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:25:33,005 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:25:33,005 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:25:33,005 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:25:33,017 INFO L180 QuantifierPusher]: treesize reduction 19, result has 89.9 percent of original size [2021-11-07 02:25:33,018 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:33,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:25:33,020 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:33,020 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:25:33,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-07 02:25:33,026 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 21=[|v_#valid_23|]} [2021-11-07 02:25:33,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:25:33,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:33,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:33,049 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:33,055 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:25:33,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:33,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:33,057 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:33,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,066 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:33,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:25:33,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:33,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:33,091 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:33,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,098 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-07 02:25:33,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 02:25:33,100 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:25:33,101 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:320, output treesize:131 [2021-11-07 02:25:33,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-11-07 02:25:33,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,177 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.9 percent of original size [2021-11-07 02:25:33,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 354 [2021-11-07 02:25:33,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 372 [2021-11-07 02:25:33,220 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.9 percent of original size [2021-11-07 02:25:33,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 354 [2021-11-07 02:25:33,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-07 02:25:33,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-11-07 02:25:33,266 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 411 [2021-11-07 02:25:33,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 432 [2021-11-07 02:25:33,309 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 518 [2021-11-07 02:25:33,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 519 [2021-11-07 02:25:33,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 682 [2021-11-07 02:25:33,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 519 [2021-11-07 02:25:33,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,541 INFO L180 QuantifierPusher]: treesize reduction 42, result has 76.4 percent of original size [2021-11-07 02:25:33,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 02:25:33,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 405 [2021-11-07 02:25:33,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,624 INFO L180 QuantifierPusher]: treesize reduction 36, result has 81.9 percent of original size [2021-11-07 02:25:33,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 02:25:33,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,681 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.7 percent of original size [2021-11-07 02:25:33,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-07 02:25:33,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,692 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-07 02:25:33,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,699 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:25:33,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-11-07 02:25:33,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,722 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-07 02:25:33,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-07 02:25:33,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,749 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:33,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,754 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:33,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-07 02:25:33,758 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 02:25:33,758 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:33,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 02:25:33,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 370 [2021-11-07 02:25:33,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:25:33,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,843 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 02:25:33,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-11-07 02:25:33,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:25:33,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 02:25:33,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 02:25:33,913 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 02:25:33,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,921 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:25:33,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-07 02:25:33,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,934 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:33,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 02:25:33,938 INFO L185 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size 129 [2021-11-07 02:25:33,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-07 02:25:33,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 02:25:33,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:25:33,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 02:25:33,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:33,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 02:25:33,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 02:25:33,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:33,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 02:25:34,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-07 02:25:34,021 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 02:25:34,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-07 02:25:34,032 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:34,036 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-07 02:25:34,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,054 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 02:25:34,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,065 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 02:25:34,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:25:34,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,079 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 02:25:34,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 02:25:34,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 02:25:34,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 02:25:34,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:25:34,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,109 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:34,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 02:25:34,112 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.9 percent of original size 116 [2021-11-07 02:25:34,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:25:34,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 02:25:34,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:25:34,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:25:34,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 02:25:34,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 02:25:34,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 02:25:34,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 02:25:34,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 02:25:34,187 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,192 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:34,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 02:25:34,196 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.9 percent of original size 116 [2021-11-07 02:25:34,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:34,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 02:25:34,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:34,297 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:25:35,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:35,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:25:35,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-11-07 02:25:35,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295999423] [2021-11-07 02:25:35,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 02:25:35,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:25:35,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 02:25:35,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2021-11-07 02:25:35,563 INFO L87 Difference]: Start difference. First operand 189 states and 221 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:36,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:25:36,369 INFO L93 Difference]: Finished difference Result 294 states and 342 transitions. [2021-11-07 02:25:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 02:25:36,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 02:25:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:25:36,372 INFO L225 Difference]: With dead ends: 294 [2021-11-07 02:25:36,372 INFO L226 Difference]: Without dead ends: 143 [2021-11-07 02:25:36,375 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=261, Invalid=1299, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 02:25:36,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-07 02:25:36,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2021-11-07 02:25:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 135 states have (on average 1.1703703703703703) internal successors, (158), 138 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 158 transitions. [2021-11-07 02:25:36,451 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 158 transitions. Word has length 36 [2021-11-07 02:25:36,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:25:36,454 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 158 transitions. [2021-11-07 02:25:36,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:25:36,454 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 158 transitions. [2021-11-07 02:25:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 02:25:36,458 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:25:36,458 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:25:36,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:25:36,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable220 [2021-11-07 02:25:36,672 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:25:36,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:25:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1525160064, now seen corresponding path program 1 times [2021-11-07 02:25:36,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:25:36,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40416445] [2021-11-07 02:25:36,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:36,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:25:36,682 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:25:36,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141253369] [2021-11-07 02:25:36,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:25:36,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:25:36,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:25:36,684 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:25:36,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76f66aad-7d94-454f-97d8-fe1972daad67/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 02:25:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:25:37,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-07 02:25:37,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:25:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:39,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:25:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:25:59,890 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:25:59,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40416445] [2021-11-07 02:25:59,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:25:59,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141253369] [2021-11-07 02:25:59,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141253369] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:25:59,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1636666801] [2021-11-07 02:25:59,892 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2021-11-07 02:25:59,892 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:25:59,893 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:25:59,893 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:25:59,893 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:25:59,907 INFO L180 QuantifierPusher]: treesize reduction 19, result has 89.9 percent of original size [2021-11-07 02:25:59,908 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:59,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 02:25:59,910 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:25:59,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 02:25:59,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-07 02:25:59,916 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_23|], 21=[|v_#valid_24|]} [2021-11-07 02:25:59,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 02:25:59,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:59,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 02:25:59,938 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:59,945 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 02:25:59,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:59,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:25:59,947 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:59,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:59,951 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:25:59,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 02:25:59,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:59,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 02:25:59,977 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 02:25:59,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:25:59,982 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,984 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-11-07 02:25:59,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-11-07 02:25:59,986 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 02:25:59,986 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:320, output treesize:131 [2021-11-07 02:25:59,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:25:59,994 INFO L185 QuantifierPusher]: treesize reduction 7, result has 95.6 percent of original size 151 [2021-11-07 02:25:59,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,045 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.9 percent of original size [2021-11-07 02:26:00,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-07 02:26:00,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-11-07 02:26:00,083 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.9 percent of original size [2021-11-07 02:26:00,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-07 02:26:00,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-11-07 02:26:00,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 407 [2021-11-07 02:26:00,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-11-07 02:26:00,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 415 [2021-11-07 02:26:00,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 503 [2021-11-07 02:26:00,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 507 [2021-11-07 02:26:00,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,239 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 766 [2021-11-07 02:26:00,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 571 [2021-11-07 02:26:00,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,383 INFO L180 QuantifierPusher]: treesize reduction 42, result has 76.4 percent of original size [2021-11-07 02:26:00,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-07 02:26:00,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 404 [2021-11-07 02:26:00,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,454 INFO L180 QuantifierPusher]: treesize reduction 36, result has 81.9 percent of original size [2021-11-07 02:26:00,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 02:26:00,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,510 INFO L180 QuantifierPusher]: treesize reduction 36, result has 78.7 percent of original size [2021-11-07 02:26:00,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-07 02:26:00,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-11-07 02:26:00,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 02:26:00,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-11-07 02:26:00,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 02:26:00,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-11-07 02:26:00,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:26:00,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,582 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:26:00,583 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-07 02:26:00,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 02:26:00,586 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:26:00,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 02:26:00,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 370 [2021-11-07 02:26:00,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-07 02:26:00,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-07 02:26:00,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-11-07 02:26:00,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 02:26:00,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,705 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 02:26:00,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-07 02:26:00,710 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:26:00,714 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:26:00,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,723 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-07 02:26:00,738 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,748 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:26:00,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-07 02:26:00,752 INFO L185 QuantifierPusher]: treesize reduction 5, result has 96.3 percent of original size 129 [2021-11-07 02:26:00,760 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,763 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-11-07 02:26:00,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-07 02:26:00,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,782 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 02:26:00,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 02:26:00,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 02:26:00,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,806 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 02:26:00,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 02:26:00,812 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,814 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-07 02:26:00,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 02:26:00,822 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-07 02:26:00,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:26:00,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-07 02:26:00,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-07 02:26:00,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 02:26:00,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:26:00,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 02:26:00,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 02:26:00,890 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-07 02:26:00,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 02:26:00,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:26:00,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:26:00,910 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:26:00,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,926 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 02:26:00,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:00,940 INFO L180 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-11-07 02:26:00,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:26:00,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 02:26:00,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 02:26:00,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 02:26:00,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 02:26:00,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 02:26:00,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 02:26:00,985 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,991 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 02:26:00,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:00,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 02:26:00,994 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.9 percent of original size 116 [2021-11-07 02:26:01,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:26:01,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 02:26:01,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:26:01,074 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:26:11,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:26:11,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:26:11,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-11-07 02:26:11,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568942596] [2021-11-07 02:26:11,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-07 02:26:11,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:26:11,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-07 02:26:11,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1948, Unknown=3, NotChecked=0, Total=2162 [2021-11-07 02:26:11,111 INFO L87 Difference]: Start difference. First operand 139 states and 158 transitions. Second operand has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 32 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:26:19,966 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse10 (= c_ULTIMATE.start_main_~b~0 0)) (.cse12 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0)) (.cse13 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0)) (.cse2 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~k~0)) (.cse3 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~k~0)) (.cse15 (div (* c_ULTIMATE.start_main_~c~0 (- 1)) (- 2))) (.cse1 (* c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0)) (.cse14 (* c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~x~0))) (let ((.cse11 (= (let ((.cse16 (div .cse15 c_ULTIMATE.start_main_~b~0))) (+ (* 2 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 .cse16)) .cse12 .cse13 .cse2 .cse3 (* 2 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 .cse16)))) (+ c_ULTIMATE.start_main_~b~0 .cse1 .cse14))) (.cse9 (not (= .cse15 0))) (.cse7 (* 2 c_ULTIMATE.start_main_~b~0)) (.cse8 (not (= c_ULTIMATE.start_main_~a~0 (+ .cse1 .cse14)))) (.cse4 (= c_ULTIMATE.start_main_~x~0 0)) (.cse5 (* (- 1) c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0)) (.cse0 (not (= (+ .cse12 .cse13) c_ULTIMATE.start_main_~b~0))) (.cse6 (not .cse10))) (and (= c_ULTIMATE.start_main_~b~0 c_ULTIMATE.start_main_~x~0) (= c_ULTIMATE.start_main_~k~0 0) (= c_ULTIMATE.start_main_~s~0 0) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~y~0) (= c_ULTIMATE.start_main_~p~0 0) (or .cse0 (not (= c_ULTIMATE.start_main_~c~0 0)) (and (not (= .cse1 (+ .cse2 .cse3))) (or .cse4 (not (= 0 (mod (+ .cse5 .cse2 .cse3) c_ULTIMATE.start_main_~x~0))))) .cse6) (or .cse0 (not (= c_ULTIMATE.start_main_~a~0 .cse7)) .cse6 .cse8) (or .cse0 (and (or .cse6 .cse9) (or (not (= (mod (div (- c_ULTIMATE.start_main_~c~0) (- 2)) c_ULTIMATE.start_main_~b~0) 0)) .cse10 .cse11)) (not (= c_ULTIMATE.start_main_~c~0 (* 2 c_ULTIMATE.start_main_~v~0)))) (= c_ULTIMATE.start_main_~c~0 c_ULTIMATE.start_main_~a~0) (= c_ULTIMATE.start_main_~r~0 1) (or .cse0 (and .cse11 .cse9) (not (= c_ULTIMATE.start_main_~c~0 .cse7)) .cse8) (or (and (or .cse4 (not (= (mod (+ .cse5 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 0) (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 0)) c_ULTIMATE.start_main_~x~0) 0))) (not (= .cse1 0))) .cse0 .cse6 (not (= c_ULTIMATE.start_main_~a~0 0)))))) is different from false [2021-11-07 02:28:45,827 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse10 (= c_ULTIMATE.start_main_~b~0 0)) (.cse12 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0)) (.cse13 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0)) (.cse3 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~k~0)) (.cse4 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~k~0)) (.cse15 (div (* c_ULTIMATE.start_main_~c~0 (- 1)) (- 2))) (.cse2 (* c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0)) (.cse14 (* c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~x~0))) (let ((.cse11 (= (let ((.cse16 (div .cse15 c_ULTIMATE.start_main_~b~0))) (+ (* 2 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 .cse16)) .cse12 .cse13 .cse3 .cse4 (* 2 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 .cse16)))) (+ c_ULTIMATE.start_main_~b~0 .cse2 .cse14))) (.cse9 (not (= .cse15 0))) (.cse0 (* 2 c_ULTIMATE.start_main_~b~0)) (.cse8 (not (= c_ULTIMATE.start_main_~a~0 (+ .cse2 .cse14)))) (.cse5 (= c_ULTIMATE.start_main_~x~0 0)) (.cse6 (* (- 1) c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0)) (.cse1 (not (= (+ .cse12 .cse13) c_ULTIMATE.start_main_~b~0))) (.cse7 (not .cse10))) (and (= 0 (mod c_ULTIMATE.start_main_~d~0 (- 2))) (= c_ULTIMATE.start_main_~b~0 c_ULTIMATE.start_main_~x~0) (= c_ULTIMATE.start_main_~c~0 c_ULTIMATE.start_main_~y~0) (= c_ULTIMATE.start_main_~k~0 0) (= c_ULTIMATE.start_main_~v~0 .cse0) (= c_ULTIMATE.start_main_~s~0 0) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~y~0) (= c_ULTIMATE.start_main_~p~0 0) (or .cse1 (not (= c_ULTIMATE.start_main_~c~0 0)) (and (not (= .cse2 (+ .cse3 .cse4))) (or .cse5 (not (= 0 (mod (+ .cse6 .cse3 .cse4) c_ULTIMATE.start_main_~x~0))))) .cse7) (or .cse1 (not (= c_ULTIMATE.start_main_~a~0 .cse0)) .cse7 .cse8) (or .cse1 (and (or .cse7 .cse9) (or (not (= (mod (div (- c_ULTIMATE.start_main_~c~0) (- 2)) c_ULTIMATE.start_main_~b~0) 0)) .cse10 .cse11)) (not (= c_ULTIMATE.start_main_~c~0 (* 2 c_ULTIMATE.start_main_~v~0)))) (= c_ULTIMATE.start_main_~c~0 c_ULTIMATE.start_main_~a~0) (= c_ULTIMATE.start_main_~r~0 1) (or .cse1 (and .cse11 .cse9) (not (= c_ULTIMATE.start_main_~c~0 .cse0)) .cse8) (or (and (or .cse5 (not (= (mod (+ .cse6 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 0) (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 0)) c_ULTIMATE.start_main_~x~0) 0))) (not (= .cse2 0))) .cse1 .cse7 (not (= c_ULTIMATE.start_main_~a~0 0)))))) is different from false [2021-11-07 02:28:48,734 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse10 (= c_ULTIMATE.start_main_~b~0 0)) (.cse12 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0)) (.cse13 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0)) (.cse3 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~k~0)) (.cse4 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~k~0)) (.cse15 (div (* c_ULTIMATE.start_main_~c~0 (- 1)) (- 2))) (.cse2 (* c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0)) (.cse14 (* c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~x~0))) (let ((.cse11 (= (let ((.cse16 (div .cse15 c_ULTIMATE.start_main_~b~0))) (+ (* 2 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 .cse16)) .cse12 .cse13 .cse3 .cse4 (* 2 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 .cse16)))) (+ c_ULTIMATE.start_main_~b~0 .cse2 .cse14))) (.cse9 (not (= .cse15 0))) (.cse0 (* 2 c_ULTIMATE.start_main_~b~0)) (.cse8 (not (= c_ULTIMATE.start_main_~a~0 (+ .cse2 .cse14)))) (.cse5 (= c_ULTIMATE.start_main_~x~0 0)) (.cse6 (* (- 1) c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0)) (.cse1 (not (= (+ .cse12 .cse13) c_ULTIMATE.start_main_~b~0))) (.cse7 (not .cse10))) (and (= 0 (mod c_ULTIMATE.start_main_~d~0 (- 2))) (= c_ULTIMATE.start_main_~b~0 c_ULTIMATE.start_main_~x~0) (= c_ULTIMATE.start_main_~c~0 c_ULTIMATE.start_main_~y~0) (= c_ULTIMATE.start_main_~k~0 0) (= c_ULTIMATE.start_main_~v~0 .cse0) (= c_ULTIMATE.start_main_~s~0 0) (= c_ULTIMATE.start_main_~p~0 0) (or .cse1 (not (= c_ULTIMATE.start_main_~c~0 0)) (and (not (= .cse2 (+ .cse3 .cse4))) (or .cse5 (not (= 0 (mod (+ .cse6 .cse3 .cse4) c_ULTIMATE.start_main_~x~0))))) .cse7) (or .cse1 (not (= c_ULTIMATE.start_main_~a~0 .cse0)) .cse7 .cse8) (or .cse1 (and (or .cse7 .cse9) (or (not (= (mod (div (- c_ULTIMATE.start_main_~c~0) (- 2)) c_ULTIMATE.start_main_~b~0) 0)) .cse10 .cse11)) (not (= c_ULTIMATE.start_main_~c~0 (* 2 c_ULTIMATE.start_main_~v~0)))) (= c_ULTIMATE.start_main_~r~0 1) (or .cse1 (and .cse11 .cse9) (not (= c_ULTIMATE.start_main_~c~0 .cse0)) .cse8) (or (and (or .cse5 (not (= (mod (+ .cse6 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 0) (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 0)) c_ULTIMATE.start_main_~x~0) 0))) (not (= .cse2 0))) .cse1 .cse7 (not (= c_ULTIMATE.start_main_~a~0 0)))))) is different from false [2021-11-07 02:29:45,567 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse19 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0)) (.cse20 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0))) (let ((.cse14 (= c_ULTIMATE.start_main_~b~0 0)) (.cse0 (= (+ .cse19 .cse20) c_ULTIMATE.start_main_~b~0)) (.cse6 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~k~0)) (.cse7 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~k~0)) (.cse17 (div (* c_ULTIMATE.start_main_~c~0 (- 1)) (- 2))) (.cse5 (* c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0)) (.cse16 (* c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~x~0))) (let ((.cse15 (= (let ((.cse18 (div .cse17 c_ULTIMATE.start_main_~b~0))) (+ (* 2 (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 .cse18)) .cse19 .cse20 .cse6 .cse7 (* 2 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 .cse18)))) (+ c_ULTIMATE.start_main_~b~0 .cse5 .cse16))) (.cse13 (not (= .cse17 0))) (.cse4 (* 2 c_ULTIMATE.start_main_~b~0)) (.cse11 (not (= c_ULTIMATE.start_main_~a~0 (+ .cse5 .cse16)))) (.cse8 (= c_ULTIMATE.start_main_~x~0 0)) (.cse9 (* (- 1) c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~y~0)) (.cse2 (not .cse0)) (.cse10 (not .cse14)) (.cse3 (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond)) (.cse12 (= (* c_ULTIMATE.start_main_~d~0 c_ULTIMATE.start_main_~b~0) c_ULTIMATE.start_main_~v~0))) (and .cse0 (= 0 (mod c_ULTIMATE.start_main_~d~0 (- 2))) (or (and .cse0 .cse1) (and .cse2 .cse3)) (= c_ULTIMATE.start_main_~b~0 c_ULTIMATE.start_main_~x~0) (= c_ULTIMATE.start_main_~c~0 c_ULTIMATE.start_main_~y~0) (= c_ULTIMATE.start_main_~k~0 0) (= c_ULTIMATE.start_main_~v~0 .cse4) (= c_ULTIMATE.start_main_~s~0 0) (<= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) (= c_ULTIMATE.start_main_~p~0 0) (or .cse2 (not (= c_ULTIMATE.start_main_~c~0 0)) (and (not (= .cse5 (+ .cse6 .cse7))) (or .cse8 (not (= 0 (mod (+ .cse9 .cse6 .cse7) c_ULTIMATE.start_main_~x~0))))) .cse10) (or .cse2 (not (= c_ULTIMATE.start_main_~a~0 .cse4)) .cse10 .cse11) .cse12 (or .cse2 (and (or .cse10 .cse13) (or (not (= (mod (div (- c_ULTIMATE.start_main_~c~0) (- 2)) c_ULTIMATE.start_main_~b~0) 0)) .cse14 .cse15)) (not (= c_ULTIMATE.start_main_~c~0 (* 2 c_ULTIMATE.start_main_~v~0)))) (= c_ULTIMATE.start_main_~r~0 1) (or .cse2 (and .cse15 .cse13) (not (= c_ULTIMATE.start_main_~c~0 .cse4)) .cse11) (or (and (or .cse8 (not (= (mod (+ .cse9 (* c_ULTIMATE.start_main_~q~0 c_ULTIMATE.start_main_~x~0 0) (* c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~y~0 0)) c_ULTIMATE.start_main_~x~0) 0))) (not (= .cse5 0))) .cse2 .cse10 (not (= c_ULTIMATE.start_main_~a~0 0))) (or (and (not .cse12) .cse3) (and .cse1 .cse12)))))) is different from false [2021-11-07 02:30:13,519 WARN L207 SmtUtils]: Spent 6.35 s on a formula simplification. DAG size of input: 120 DAG size of output: 84 [2021-11-07 02:30:36,377 WARN L207 SmtUtils]: Spent 8.09 s on a formula simplification. DAG size of input: 46 DAG size of output: 27 [2021-11-07 02:30:56,809 WARN L207 SmtUtils]: Spent 8.29 s on a formula simplification. DAG size of input: 45 DAG size of output: 26 [2021-11-07 02:31:15,749 WARN L207 SmtUtils]: Spent 8.93 s on a formula simplification. DAG size of input: 48 DAG size of output: 29 [2021-11-07 02:31:39,776 WARN L207 SmtUtils]: Spent 15.10 s on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-11-07 02:32:12,650 WARN L207 SmtUtils]: Spent 17.53 s on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-11-07 02:32:50,835 WARN L207 SmtUtils]: Spent 11.71 s on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2021-11-07 02:33:28,250 WARN L207 SmtUtils]: Spent 17.80 s on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-11-07 02:33:55,767 WARN L207 SmtUtils]: Spent 23.10 s on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2021-11-07 02:34:11,151 WARN L207 SmtUtils]: Spent 10.86 s on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2021-11-07 02:34:30,598 WARN L207 SmtUtils]: Spent 13.94 s on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-11-07 02:34:44,175 WARN L207 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 118 DAG size of output: 82 [2021-11-07 02:35:11,177 WARN L207 SmtUtils]: Spent 11.63 s on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2021-11-07 02:35:38,011 WARN L207 SmtUtils]: Spent 16.34 s on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-11-07 02:36:11,354 WARN L207 SmtUtils]: Spent 14.66 s on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2021-11-07 02:36:33,612 WARN L207 SmtUtils]: Spent 15.47 s on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-11-07 02:37:40,438 WARN L207 SmtUtils]: Spent 58.10 s on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2021-11-07 02:37:59,959 WARN L207 SmtUtils]: Spent 18.88 s on a formula simplification. DAG size of input: 91 DAG size of output: 61