./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.04.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs --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 e00c3fe8d0c18f678a1828bfe849f51bd28f58902f8fb74e3907dba377893684 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:45:10,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:45:10,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:45:10,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:45:10,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:45:10,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:45:10,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:45:10,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:45:10,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:45:10,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:45:10,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:45:10,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:45:10,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:45:10,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:45:10,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:45:10,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:45:10,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:45:10,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:45:10,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:45:10,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:45:10,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:45:10,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:45:10,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:45:10,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:45:10,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:45:10,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:45:10,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:45:10,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:45:10,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:45:10,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:45:10,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:45:10,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:45:10,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:45:10,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:45:10,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:45:10,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:45:10,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:45:10,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:45:10,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:45:10,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:45:10,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:45:10,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:45:10,875 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:45:10,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:45:10,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:45:10,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:45:10,878 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:45:10,878 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:45:10,878 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:45:10,878 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:45:10,885 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:45:10,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:45:10,886 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:45:10,887 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:45:10,887 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:45:10,887 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:45:10,888 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:45:10,888 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:45:10,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:45:10,889 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:45:10,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:45:10,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:45:10,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:45:10,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:45:10,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:45:10,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:45:10,891 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:45:10,891 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:45:10,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:45:10,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:45:10,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:45:10,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:45:10,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:45:10,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:45:10,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:45:10,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:45:10,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:45:10,894 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:45:10,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:45:10,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:45:10,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:45:10,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:45:10,895 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_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e00c3fe8d0c18f678a1828bfe849f51bd28f58902f8fb74e3907dba377893684 [2021-11-19 14:45:11,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:45:11,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:45:11,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:45:11,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:45:11,200 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:45:11,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.04.cil-1.c [2021-11-19 14:45:11,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/data/4d4e476f4/688e0c06b86b450190126322bcdcde28/FLAGebaf6757d [2021-11-19 14:45:12,265 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:45:12,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/sv-benchmarks/c/combinations/Problem05_label43+token_ring.04.cil-1.c [2021-11-19 14:45:12,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/data/4d4e476f4/688e0c06b86b450190126322bcdcde28/FLAGebaf6757d [2021-11-19 14:45:12,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/data/4d4e476f4/688e0c06b86b450190126322bcdcde28 [2021-11-19 14:45:12,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:45:12,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:45:12,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:45:12,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:45:12,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:45:12,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:12" (1/1) ... [2021-11-19 14:45:12,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318ce8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:12, skipping insertion in model container [2021-11-19 14:45:12,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:12" (1/1) ... [2021-11-19 14:45:12,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:45:12,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:45:15,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/sv-benchmarks/c/combinations/Problem05_label43+token_ring.04.cil-1.c[381679,381692] [2021-11-19 14:45:15,160 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/sv-benchmarks/c/combinations/Problem05_label43+token_ring.04.cil-1.c[383339,383352] [2021-11-19 14:45:15,365 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:45:15,374 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:45:16,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/sv-benchmarks/c/combinations/Problem05_label43+token_ring.04.cil-1.c[381679,381692] [2021-11-19 14:45:16,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/sv-benchmarks/c/combinations/Problem05_label43+token_ring.04.cil-1.c[383339,383352] [2021-11-19 14:45:16,706 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:45:16,778 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:45:16,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16 WrapperNode [2021-11-19 14:45:16,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:45:16,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:45:16,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:45:16,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:45:16,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:16,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,297 INFO L137 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12735 [2021-11-19 14:45:17,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:45:17,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:45:17,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:45:17,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:45:17,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:45:17,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:45:17,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:45:17,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:45:17,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (1/1) ... [2021-11-19 14:45:17,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:45:17,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:45:18,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:45:18,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:45:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:45:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-19 14:45:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-19 14:45:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-19 14:45:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-19 14:45:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-19 14:45:18,101 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-19 14:45:18,101 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-19 14:45:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-19 14:45:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-19 14:45:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-19 14:45:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-19 14:45:18,102 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-19 14:45:18,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:45:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:45:18,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:45:18,283 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:45:18,285 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:45:26,074 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:45:28,304 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:45:28,304 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-19 14:45:28,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:28 BoogieIcfgContainer [2021-11-19 14:45:28,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:45:28,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:45:28,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:45:28,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:45:28,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:45:12" (1/3) ... [2021-11-19 14:45:28,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c38c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:45:28, skipping insertion in model container [2021-11-19 14:45:28,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:16" (2/3) ... [2021-11-19 14:45:28,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c38c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:45:28, skipping insertion in model container [2021-11-19 14:45:28,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:28" (3/3) ... [2021-11-19 14:45:28,322 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.04.cil-1.c [2021-11-19 14:45:28,330 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:45:28,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 14:45:28,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:45:28,411 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 [2021-11-19 14:45:28,411 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 14:45:28,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 1743 states, 1716 states have (on average 1.9726107226107226) internal successors, (3385), 1719 states have internal predecessors, (3385), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 14:45:28,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-19 14:45:28,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:28,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:28,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:28,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:28,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1527254023, now seen corresponding path program 1 times [2021-11-19 14:45:28,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:28,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718421218] [2021-11-19 14:45:28,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:28,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:45:28,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:28,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718421218] [2021-11-19 14:45:28,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718421218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:45:28,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:45:28,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:45:28,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449362295] [2021-11-19 14:45:28,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:28,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:45:28,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:28,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:45:28,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:45:28,893 INFO L87 Difference]: Start difference. First operand has 1743 states, 1716 states have (on average 1.9726107226107226) internal successors, (3385), 1719 states have internal predecessors, (3385), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 14:45:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:29,843 INFO L93 Difference]: Finished difference Result 3569 states and 6979 transitions. [2021-11-19 14:45:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:45:29,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2021-11-19 14:45:29,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:29,876 INFO L225 Difference]: With dead ends: 3569 [2021-11-19 14:45:29,876 INFO L226 Difference]: Without dead ends: 1825 [2021-11-19 14:45:29,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:45:29,889 INFO L933 BasicCegarLoop]: 3271 mSDtfsCounter, 3515 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3515 SdHoareTripleChecker+Valid, 6476 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:29,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3515 Valid, 6476 Invalid, 612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:45:29,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2021-11-19 14:45:30,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1824. [2021-11-19 14:45:30,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1778 states have (on average 1.9482564679415073) internal successors, (3464), 1781 states have internal predecessors, (3464), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-19 14:45:30,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 3528 transitions. [2021-11-19 14:45:30,086 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 3528 transitions. Word has length 43 [2021-11-19 14:45:30,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:30,087 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 3528 transitions. [2021-11-19 14:45:30,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-19 14:45:30,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 3528 transitions. [2021-11-19 14:45:30,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-19 14:45:30,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:30,104 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:30,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:45:30,105 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:30,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash 414286499, now seen corresponding path program 1 times [2021-11-19 14:45:30,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:30,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481988511] [2021-11-19 14:45:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:30,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:30,271 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:45:30,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:30,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481988511] [2021-11-19 14:45:30,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481988511] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:30,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498555835] [2021-11-19 14:45:30,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:30,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:30,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:45:30,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:45:30,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 14:45:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:30,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:45:30,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:45:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 14:45:30,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:45:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-19 14:45:30,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498555835] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:30,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:45:30,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 4] total 7 [2021-11-19 14:45:30,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321367667] [2021-11-19 14:45:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:30,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:45:30,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:45:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:30,916 INFO L87 Difference]: Start difference. First operand 1824 states and 3528 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:45:31,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:31,398 INFO L93 Difference]: Finished difference Result 2173 states and 4035 transitions. [2021-11-19 14:45:31,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:45:31,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2021-11-19 14:45:31,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:31,417 INFO L225 Difference]: With dead ends: 2173 [2021-11-19 14:45:31,417 INFO L226 Difference]: Without dead ends: 1995 [2021-11-19 14:45:31,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:31,421 INFO L933 BasicCegarLoop]: 3207 mSDtfsCounter, 3384 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:31,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3384 Valid, 3312 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:45:31,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2021-11-19 14:45:31,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1991. [2021-11-19 14:45:31,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1907 states have (on average 1.9113791295228106) internal successors, (3645), 1911 states have internal predecessors, (3645), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2021-11-19 14:45:31,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 3761 transitions. [2021-11-19 14:45:31,515 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 3761 transitions. Word has length 80 [2021-11-19 14:45:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:31,516 INFO L470 AbstractCegarLoop]: Abstraction has 1991 states and 3761 transitions. [2021-11-19 14:45:31,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:45:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 3761 transitions. [2021-11-19 14:45:31,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-19 14:45:31,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:31,520 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:31,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:45:31,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:31,746 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:31,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash 934070915, now seen corresponding path program 1 times [2021-11-19 14:45:31,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:31,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944497746] [2021-11-19 14:45:31,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:31,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:45:31,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:31,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944497746] [2021-11-19 14:45:31,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944497746] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:31,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162063406] [2021-11-19 14:45:31,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:31,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:31,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:45:31,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:45:31,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 14:45:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:31,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:45:31,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:45:32,192 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 14:45:32,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:45:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-19 14:45:32,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162063406] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:32,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:45:32,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 4] total 7 [2021-11-19 14:45:32,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790342614] [2021-11-19 14:45:32,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:32,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:45:32,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:32,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:45:32,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:32,422 INFO L87 Difference]: Start difference. First operand 1991 states and 3761 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:45:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:32,902 INFO L93 Difference]: Finished difference Result 2668 states and 4736 transitions. [2021-11-19 14:45:32,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:45:32,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2021-11-19 14:45:32,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:32,921 INFO L225 Difference]: With dead ends: 2668 [2021-11-19 14:45:32,922 INFO L226 Difference]: Without dead ends: 2323 [2021-11-19 14:45:32,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:32,926 INFO L933 BasicCegarLoop]: 3182 mSDtfsCounter, 3381 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3381 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:32,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3381 Valid, 3287 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:45:32,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2021-11-19 14:45:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2317. [2021-11-19 14:45:33,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2159 states have (on average 1.8503937007874016) internal successors, (3995), 2165 states have internal predecessors, (3995), 108 states have call successors, (108), 48 states have call predecessors, (108), 48 states have return successors, (108), 104 states have call predecessors, (108), 108 states have call successors, (108) [2021-11-19 14:45:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 4211 transitions. [2021-11-19 14:45:33,053 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 4211 transitions. Word has length 80 [2021-11-19 14:45:33,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:33,054 INFO L470 AbstractCegarLoop]: Abstraction has 2317 states and 4211 transitions. [2021-11-19 14:45:33,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 14:45:33,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 4211 transitions. [2021-11-19 14:45:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-19 14:45:33,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:33,060 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:33,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:45:33,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:33,274 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:33,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:33,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1650036387, now seen corresponding path program 1 times [2021-11-19 14:45:33,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:33,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092607370] [2021-11-19 14:45:33,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:33,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:45:33,426 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:33,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092607370] [2021-11-19 14:45:33,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092607370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:45:33,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:45:33,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:45:33,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584223570] [2021-11-19 14:45:33,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:33,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:45:33,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:45:33,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:45:33,429 INFO L87 Difference]: Start difference. First operand 2317 states and 4211 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:45:33,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:33,935 INFO L93 Difference]: Finished difference Result 2839 states and 4960 transitions. [2021-11-19 14:45:33,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:45:33,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2021-11-19 14:45:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:33,957 INFO L225 Difference]: With dead ends: 2839 [2021-11-19 14:45:33,958 INFO L226 Difference]: Without dead ends: 2493 [2021-11-19 14:45:33,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:45:33,962 INFO L933 BasicCegarLoop]: 3228 mSDtfsCounter, 55 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 6402 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:33,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 6402 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:45:33,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2021-11-19 14:45:34,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2421. [2021-11-19 14:45:34,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2255 states have (on average 1.8425720620842572) internal successors, (4155), 2261 states have internal predecessors, (4155), 112 states have call successors, (112), 52 states have call predecessors, (112), 52 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-19 14:45:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4379 transitions. [2021-11-19 14:45:34,091 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4379 transitions. Word has length 80 [2021-11-19 14:45:34,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:34,092 INFO L470 AbstractCegarLoop]: Abstraction has 2421 states and 4379 transitions. [2021-11-19 14:45:34,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-19 14:45:34,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4379 transitions. [2021-11-19 14:45:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-19 14:45:34,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:34,099 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:34,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 14:45:34,107 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:34,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:34,107 INFO L85 PathProgramCache]: Analyzing trace with hash 537465106, now seen corresponding path program 1 times [2021-11-19 14:45:34,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:34,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634838599] [2021-11-19 14:45:34,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:34,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 14:45:34,237 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:34,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634838599] [2021-11-19 14:45:34,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634838599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:45:34,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:45:34,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:45:34,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609417653] [2021-11-19 14:45:34,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:34,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:45:34,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:34,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:45:34,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:45:34,241 INFO L87 Difference]: Start difference. First operand 2421 states and 4379 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:45:34,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:34,714 INFO L93 Difference]: Finished difference Result 3934 states and 6568 transitions. [2021-11-19 14:45:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:45:34,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 106 [2021-11-19 14:45:34,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:34,738 INFO L225 Difference]: With dead ends: 3934 [2021-11-19 14:45:34,738 INFO L226 Difference]: Without dead ends: 3159 [2021-11-19 14:45:34,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:45:34,744 INFO L933 BasicCegarLoop]: 3189 mSDtfsCounter, 3375 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3375 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:34,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3375 Valid, 3294 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:45:34,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-11-19 14:45:34,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3145. [2021-11-19 14:45:34,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 2827 states have (on average 1.7541563494870889) internal successors, (4959), 2837 states have internal predecessors, (4959), 212 states have call successors, (212), 104 states have call predecessors, (212), 104 states have return successors, (212), 204 states have call predecessors, (212), 212 states have call successors, (212) [2021-11-19 14:45:34,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 5383 transitions. [2021-11-19 14:45:34,882 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 5383 transitions. Word has length 106 [2021-11-19 14:45:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:34,883 INFO L470 AbstractCegarLoop]: Abstraction has 3145 states and 5383 transitions. [2021-11-19 14:45:34,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:45:34,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 5383 transitions. [2021-11-19 14:45:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-19 14:45:34,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:34,891 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:34,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 14:45:34,891 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:34,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:34,892 INFO L85 PathProgramCache]: Analyzing trace with hash -475711734, now seen corresponding path program 1 times [2021-11-19 14:45:34,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:34,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975177416] [2021-11-19 14:45:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:34,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-19 14:45:34,951 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:34,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975177416] [2021-11-19 14:45:34,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975177416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:45:34,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:45:34,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:45:34,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563593748] [2021-11-19 14:45:34,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:34,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:45:34,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:45:34,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:45:34,953 INFO L87 Difference]: Start difference. First operand 3145 states and 5383 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:45:35,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:35,612 INFO L93 Difference]: Finished difference Result 6070 states and 9556 transitions. [2021-11-19 14:45:35,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:45:35,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 106 [2021-11-19 14:45:35,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:35,646 INFO L225 Difference]: With dead ends: 6070 [2021-11-19 14:45:35,647 INFO L226 Difference]: Without dead ends: 4571 [2021-11-19 14:45:35,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:45:35,656 INFO L933 BasicCegarLoop]: 3187 mSDtfsCounter, 3378 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3378 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:35,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3378 Valid, 3292 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:45:35,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2021-11-19 14:45:35,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4545. [2021-11-19 14:45:35,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 3931 states have (on average 1.6502162299669296) internal successors, (6487), 3949 states have internal predecessors, (6487), 404 states have call successors, (404), 208 states have call predecessors, (404), 208 states have return successors, (404), 388 states have call predecessors, (404), 404 states have call successors, (404) [2021-11-19 14:45:35,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 7295 transitions. [2021-11-19 14:45:35,869 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 7295 transitions. Word has length 106 [2021-11-19 14:45:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:35,870 INFO L470 AbstractCegarLoop]: Abstraction has 4545 states and 7295 transitions. [2021-11-19 14:45:35,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:45:35,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 7295 transitions. [2021-11-19 14:45:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:45:35,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:35,883 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:35,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 14:45:35,885 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:35,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:35,886 INFO L85 PathProgramCache]: Analyzing trace with hash -832557665, now seen corresponding path program 1 times [2021-11-19 14:45:35,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:35,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303902826] [2021-11-19 14:45:35,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:35,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 14:45:35,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:35,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303902826] [2021-11-19 14:45:35,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303902826] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:35,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604391672] [2021-11-19 14:45:35,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:35,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:35,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:45:35,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:45:36,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 14:45:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:36,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:45:36,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:45:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-19 14:45:36,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:45:36,602 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 14:45:36,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604391672] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:45:36,602 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:45:36,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-19 14:45:36,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465306175] [2021-11-19 14:45:36,603 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:36,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:45:36,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:45:36,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:36,617 INFO L87 Difference]: Start difference. First operand 4545 states and 7295 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:45:37,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:37,261 INFO L93 Difference]: Finished difference Result 7205 states and 11065 transitions. [2021-11-19 14:45:37,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:45:37,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2021-11-19 14:45:37,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:37,301 INFO L225 Difference]: With dead ends: 7205 [2021-11-19 14:45:37,301 INFO L226 Difference]: Without dead ends: 5719 [2021-11-19 14:45:37,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:37,309 INFO L933 BasicCegarLoop]: 3238 mSDtfsCounter, 148 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 6430 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:37,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 6430 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:45:37,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5719 states. [2021-11-19 14:45:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5719 to 5053. [2021-11-19 14:45:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5053 states, 4391 states have (on average 1.6467774994306537) internal successors, (7231), 4409 states have internal predecessors, (7231), 428 states have call successors, (428), 232 states have call predecessors, (428), 232 states have return successors, (428), 412 states have call predecessors, (428), 428 states have call successors, (428) [2021-11-19 14:45:37,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 8087 transitions. [2021-11-19 14:45:37,575 INFO L78 Accepts]: Start accepts. Automaton has 5053 states and 8087 transitions. Word has length 120 [2021-11-19 14:45:37,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:37,576 INFO L470 AbstractCegarLoop]: Abstraction has 5053 states and 8087 transitions. [2021-11-19 14:45:37,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:45:37,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states and 8087 transitions. [2021-11-19 14:45:37,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:45:37,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:37,591 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:37,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:45:37,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:37,818 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:37,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash -82657837, now seen corresponding path program 1 times [2021-11-19 14:45:37,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:37,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559750612] [2021-11-19 14:45:37,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:37,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 14:45:37,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:37,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559750612] [2021-11-19 14:45:37,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559750612] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:37,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126756995] [2021-11-19 14:45:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:37,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:37,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:45:37,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:45:37,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 14:45:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:38,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:45:38,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:45:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-19 14:45:38,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:45:38,604 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-19 14:45:38,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126756995] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:45:38,609 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:45:38,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-19 14:45:38,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599053520] [2021-11-19 14:45:38,610 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:38,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:45:38,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:38,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:45:38,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:38,611 INFO L87 Difference]: Start difference. First operand 5053 states and 8087 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:45:39,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:39,380 INFO L93 Difference]: Finished difference Result 8297 states and 12733 transitions. [2021-11-19 14:45:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:45:39,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2021-11-19 14:45:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:39,432 INFO L225 Difference]: With dead ends: 8297 [2021-11-19 14:45:39,432 INFO L226 Difference]: Without dead ends: 6551 [2021-11-19 14:45:39,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:39,441 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 105 mSDsluCounter, 6831 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 9618 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:39,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 9618 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:45:39,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6551 states. [2021-11-19 14:45:39,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6551 to 5773. [2021-11-19 14:45:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5773 states, 5039 states have (on average 1.6398094860091288) internal successors, (8263), 5057 states have internal predecessors, (8263), 464 states have call successors, (464), 268 states have call predecessors, (464), 268 states have return successors, (464), 448 states have call predecessors, (464), 464 states have call successors, (464) [2021-11-19 14:45:39,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5773 states to 5773 states and 9191 transitions. [2021-11-19 14:45:39,742 INFO L78 Accepts]: Start accepts. Automaton has 5773 states and 9191 transitions. Word has length 120 [2021-11-19 14:45:39,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:39,743 INFO L470 AbstractCegarLoop]: Abstraction has 5773 states and 9191 transitions. [2021-11-19 14:45:39,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:45:39,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5773 states and 9191 transitions. [2021-11-19 14:45:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:45:39,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:39,759 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:39,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:45:39,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-19 14:45:39,986 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:39,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:39,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1299145756, now seen corresponding path program 1 times [2021-11-19 14:45:39,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:39,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577503444] [2021-11-19 14:45:39,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:39,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 14:45:40,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:40,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577503444] [2021-11-19 14:45:40,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577503444] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:40,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648081641] [2021-11-19 14:45:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:40,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:40,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:45:40,067 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:45:40,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 14:45:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:40,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:45:40,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:45:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-19 14:45:40,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:45:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 14:45:40,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648081641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:45:40,642 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:45:40,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-19 14:45:40,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123714971] [2021-11-19 14:45:40,642 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:40,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:45:40,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:40,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:45:40,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:40,644 INFO L87 Difference]: Start difference. First operand 5773 states and 9191 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:45:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:41,352 INFO L93 Difference]: Finished difference Result 9849 states and 15103 transitions. [2021-11-19 14:45:41,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:45:41,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2021-11-19 14:45:41,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:41,383 INFO L225 Difference]: With dead ends: 9849 [2021-11-19 14:45:41,383 INFO L226 Difference]: Without dead ends: 7707 [2021-11-19 14:45:41,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:41,395 INFO L933 BasicCegarLoop]: 3256 mSDtfsCounter, 184 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 6458 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:41,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 6458 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:45:41,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7707 states. [2021-11-19 14:45:41,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7707 to 6817. [2021-11-19 14:45:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6817 states, 5975 states have (on average 1.6299581589958159) internal successors, (9739), 5993 states have internal predecessors, (9739), 518 states have call successors, (518), 322 states have call predecessors, (518), 322 states have return successors, (518), 502 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-19 14:45:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6817 states to 6817 states and 10775 transitions. [2021-11-19 14:45:41,809 INFO L78 Accepts]: Start accepts. Automaton has 6817 states and 10775 transitions. Word has length 120 [2021-11-19 14:45:41,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:41,810 INFO L470 AbstractCegarLoop]: Abstraction has 6817 states and 10775 transitions. [2021-11-19 14:45:41,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:45:41,810 INFO L276 IsEmpty]: Start isEmpty. Operand 6817 states and 10775 transitions. [2021-11-19 14:45:41,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:45:41,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:41,828 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:41,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:45:42,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:42,042 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1617573369, now seen corresponding path program 1 times [2021-11-19 14:45:42,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:42,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556680004] [2021-11-19 14:45:42,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:42,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 14:45:42,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:42,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556680004] [2021-11-19 14:45:42,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556680004] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:42,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835833148] [2021-11-19 14:45:42,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:42,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:45:42,130 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:45:42,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 14:45:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:42,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:45:42,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:45:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-19 14:45:42,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:45:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-19 14:45:42,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835833148] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:45:42,776 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:45:42,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-19 14:45:42,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957193541] [2021-11-19 14:45:42,777 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:45:42,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:45:42,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:45:42,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:45:42,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:42,778 INFO L87 Difference]: Start difference. First operand 6817 states and 10775 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:45:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:45:43,596 INFO L93 Difference]: Finished difference Result 11547 states and 17758 transitions. [2021-11-19 14:45:43,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:45:43,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2021-11-19 14:45:43,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:45:43,627 INFO L225 Difference]: With dead ends: 11547 [2021-11-19 14:45:43,627 INFO L226 Difference]: Without dead ends: 8856 [2021-11-19 14:45:43,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:45:43,639 INFO L933 BasicCegarLoop]: 3238 mSDtfsCounter, 81 mSDsluCounter, 6816 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 9592 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:45:43,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 9592 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:45:43,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8856 states. [2021-11-19 14:45:43,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8856 to 8302. [2021-11-19 14:45:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8302 states, 7298 states have (on average 1.6156481227733626) internal successors, (11791), 7316 states have internal predecessors, (11791), 599 states have call successors, (599), 403 states have call predecessors, (599), 403 states have return successors, (599), 583 states have call predecessors, (599), 599 states have call successors, (599) [2021-11-19 14:45:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8302 states to 8302 states and 12989 transitions. [2021-11-19 14:45:43,971 INFO L78 Accepts]: Start accepts. Automaton has 8302 states and 12989 transitions. Word has length 120 [2021-11-19 14:45:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:45:43,971 INFO L470 AbstractCegarLoop]: Abstraction has 8302 states and 12989 transitions. [2021-11-19 14:45:43,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-19 14:45:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8302 states and 12989 transitions. [2021-11-19 14:45:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:45:43,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:45:43,993 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:45:44,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:45:44,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-19 14:45:44,206 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:45:44,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:45:44,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1411953984, now seen corresponding path program 2 times [2021-11-19 14:45:44,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:45:44,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24356670] [2021-11-19 14:45:44,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:45:44,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:45:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:45:44,290 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 14:45:44,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:45:44,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24356670] [2021-11-19 14:45:44,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24356670] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:45:44,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294353831] [2021-11-19 14:45:44,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:45:44,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:45:44,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:45:44,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:45:44,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 14:45:44,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-19 14:45:44,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:45:44,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-19 14:45:44,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:45:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 56 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-19 14:45:44,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:45:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 19 proven. 34 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:45:45,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294353831] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:45:45,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [747127419] [2021-11-19 14:45:45,486 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2021-11-19 14:45:45,487 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:45:45,492 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:45:45,499 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:45:45,499 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:45:45,611 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size [2021-11-19 14:45:45,644 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-19 14:45:45,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:45,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-19 14:45:45,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:45,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-19 14:45:45,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:45,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:45,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:45,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:45,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:45,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:45,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:46,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:46,158 INFO L180 QuantifierPusher]: treesize reduction 267, result has 49.9 percent of original size [2021-11-19 14:45:46,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-11-19 14:45:46,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:46,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:46,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:46,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:46,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-19 14:45:46,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:46,356 INFO L185 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size 41 [2021-11-19 14:45:46,357 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:45:46,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:46,723 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:45:47,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,319 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:47,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-19 14:45:47,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:47,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-19 14:45:47,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:47,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-19 14:45:47,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:47,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-19 14:45:47,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:47,931 INFO L185 QuantifierPusher]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-11-19 14:45:47,936 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.5 percent of original size [2021-11-19 14:45:47,944 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.0 percent of original size 96 [2021-11-19 14:45:47,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:47,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,014 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.2 percent of original size [2021-11-19 14:45:48,017 INFO L185 QuantifierPusher]: treesize reduction 5, result has 92.4 percent of original size 61 [2021-11-19 14:45:48,023 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.2 percent of original size [2021-11-19 14:45:48,029 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.7 percent of original size 89 [2021-11-19 14:45:48,036 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.2 percent of original size [2021-11-19 14:45:48,043 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.9 percent of original size 117 [2021-11-19 14:45:48,078 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.2 percent of original size [2021-11-19 14:45:48,093 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:45:48,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:48,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:45:48,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:45:48,126 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:48,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-19 14:45:48,172 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.2 percent of original size [2021-11-19 14:45:48,177 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:45:48,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:48,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:45:48,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:45:48,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:48,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:45:48,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:48,504 INFO L185 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size 41 [2021-11-19 14:45:48,505 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:45:48,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:48,807 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:45:49,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:45:49,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:45:49,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:45:49,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-19 14:45:49,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:45:49,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:45:49,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:45:49,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:45:49,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,570 INFO L180 QuantifierPusher]: treesize reduction 14, result has 93.0 percent of original size [2021-11-19 14:45:49,575 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-19 14:45:49,586 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:45:49,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-11-19 14:45:49,613 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.3 percent of original size [2021-11-19 14:45:49,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-19 14:45:49,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:45:49,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 14:45:49,652 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-11-19 14:45:49,658 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:45:49,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:45:49,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-19 14:45:49,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 14:45:49,676 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-11-19 14:45:49,681 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:45:49,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:45:49,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-19 14:45:49,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,700 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.4 percent of original size [2021-11-19 14:45:49,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:45:49,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:49,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:45:49,733 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.4 percent of original size [2021-11-19 14:45:49,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:45:49,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,837 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.2 percent of original size [2021-11-19 14:45:49,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-11-19 14:45:49,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:49,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 464 [2021-11-19 14:45:50,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 468 [2021-11-19 14:45:50,153 INFO L180 QuantifierPusher]: treesize reduction 4, result has 99.2 percent of original size [2021-11-19 14:45:50,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 476 [2021-11-19 14:45:50,190 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 459 [2021-11-19 14:45:50,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,233 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:45:50,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-19 14:45:50,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-19 14:45:50,295 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 535 [2021-11-19 14:45:50,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:45:50,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-19 14:45:50,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-19 14:45:50,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 535 [2021-11-19 14:45:50,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,694 INFO L180 QuantifierPusher]: treesize reduction 20, result has 91.2 percent of original size [2021-11-19 14:45:50,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:45:50,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:45:50,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-11-19 14:45:50,779 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.3 percent of original size [2021-11-19 14:45:50,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-19 14:45:50,807 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:45:50,840 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.4 percent of original size [2021-11-19 14:45:50,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:45:50,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:50,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:45:50,904 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.4 percent of original size [2021-11-19 14:45:50,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:45:50,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:50,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,108 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.2 percent of original size [2021-11-19 14:45:51,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-11-19 14:45:51,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:51,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:45:51,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,640 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:51,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 464 [2021-11-19 14:45:51,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:51,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 468 [2021-11-19 14:45:51,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:51,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 459 [2021-11-19 14:45:51,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:51,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,407 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-19 14:45:52,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-11-19 14:45:52,422 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-11-19 14:45:52,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-19 14:45:52,442 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-19 14:45:52,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-11-19 14:45:52,456 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-11-19 14:45:52,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-19 14:45:52,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,629 INFO L180 QuantifierPusher]: treesize reduction 14, result has 93.1 percent of original size [2021-11-19 14:45:52,637 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-19 14:45:52,646 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-19 14:45:52,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-11-19 14:45:52,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:52,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:45:52,702 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:52,712 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-19 14:45:52,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:52,815 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-19 14:45:52,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:52,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:52,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-19 14:45:52,901 INFO L197 IcfgInterpreter]: Interpreting procedure reset_delta_events with input of size 126 for LOIs [2021-11-19 14:45:52,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:52,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-11-19 14:45:52,939 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:45:53,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:53,823 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:45:55,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:59,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:45:59,896 INFO L197 IcfgInterpreter]: Interpreting procedure fire_delta_events with input of size 161 for LOIs [2021-11-19 14:45:59,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:45:59,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 422 [2021-11-19 14:45:59,941 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:46:00,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:00,618 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:46:01,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:01,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:01,838 INFO L197 IcfgInterpreter]: Interpreting procedure update_channels with input of size 123 for LOIs [2021-11-19 14:46:01,841 INFO L197 IcfgInterpreter]: Interpreting procedure exists_runnable_thread with input of size 100 for LOIs [2021-11-19 14:46:01,843 INFO L197 IcfgInterpreter]: Interpreting procedure immediate_notify with input of size 115 for LOIs [2021-11-19 14:46:01,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:01,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:46:01,892 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.0 percent of original size [2021-11-19 14:46:01,898 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:46:01,899 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:01,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:46:01,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-19 14:46:01,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:01,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:46:01,961 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.0 percent of original size [2021-11-19 14:46:01,969 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:46:01,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:01,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:46:01,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-19 14:46:01,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:01,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:02,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:46:02,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:46:02,425 INFO L197 IcfgInterpreter]: Interpreting procedure activate_threads with input of size 156 for LOIs [2021-11-19 14:46:02,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:02,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 659 [2021-11-19 14:46:02,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:02,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 694 [2021-11-19 14:46:02,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:02,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 729 [2021-11-19 14:46:02,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:02,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 764 [2021-11-19 14:46:02,839 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:46:02,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 799 [2021-11-19 14:46:02,887 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:46:32,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [747127419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:46:32,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:46:32,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [6, 7, 6] total 52 [2021-11-19 14:46:32,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327754604] [2021-11-19 14:46:32,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:46:32,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-19 14:46:32,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:46:32,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-19 14:46:32,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=449, Invalid=2203, Unknown=0, NotChecked=0, Total=2652 [2021-11-19 14:46:32,637 INFO L87 Difference]: Start difference. First operand 8302 states and 12989 transitions. Second operand has 41 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 33 states have internal predecessors, (53), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 14:47:50,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:50,791 INFO L93 Difference]: Finished difference Result 15612 states and 23641 transitions. [2021-11-19 14:47:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-19 14:47:50,792 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 33 states have internal predecessors, (53), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 120 [2021-11-19 14:47:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:50,828 INFO L225 Difference]: With dead ends: 15612 [2021-11-19 14:47:50,828 INFO L226 Difference]: Without dead ends: 8933 [2021-11-19 14:47:50,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 299 SyntacticMatches, 17 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3596 ImplicationChecksByTransitivity, 67.2s TimeCoverageRelationStatistics Valid=1424, Invalid=8676, Unknown=0, NotChecked=0, Total=10100 [2021-11-19 14:47:50,848 INFO L933 BasicCegarLoop]: 3270 mSDtfsCounter, 572 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 33053 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 33287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 33053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:50,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 4964 Invalid, 33287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [234 Valid, 33053 Invalid, 0 Unknown, 0 Unchecked, 39.9s Time] [2021-11-19 14:47:50,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8933 states. [2021-11-19 14:47:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8933 to 8466. [2021-11-19 14:47:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8466 states, 7429 states have (on average 1.6068111455108358) internal successors, (11937), 7445 states have internal predecessors, (11937), 615 states have call successors, (615), 420 states have call predecessors, (615), 420 states have return successors, (615), 601 states have call predecessors, (615), 615 states have call successors, (615) [2021-11-19 14:47:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8466 states to 8466 states and 13167 transitions. [2021-11-19 14:47:51,275 INFO L78 Accepts]: Start accepts. Automaton has 8466 states and 13167 transitions. Word has length 120 [2021-11-19 14:47:51,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:51,276 INFO L470 AbstractCegarLoop]: Abstraction has 8466 states and 13167 transitions. [2021-11-19 14:47:51,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 33 states have internal predecessors, (53), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 14:47:51,276 INFO L276 IsEmpty]: Start isEmpty. Operand 8466 states and 13167 transitions. [2021-11-19 14:47:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 14:47:51,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:51,300 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:51,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:51,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:51,526 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:51,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:51,526 INFO L85 PathProgramCache]: Analyzing trace with hash 95048522, now seen corresponding path program 1 times [2021-11-19 14:47:51,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:51,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534163763] [2021-11-19 14:47:51,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:51,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:51,633 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 33 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-19 14:47:51,633 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:47:51,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534163763] [2021-11-19 14:47:51,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534163763] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:51,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263131599] [2021-11-19 14:47:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:51,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:51,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:51,635 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:51,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 14:47:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:51,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:47:51,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-19 14:47:52,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 14:47:52,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263131599] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:52,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:47:52,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 8 [2021-11-19 14:47:52,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58673763] [2021-11-19 14:47:52,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:47:52,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:47:52,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:47:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:47:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:47:52,421 INFO L87 Difference]: Start difference. First operand 8466 states and 13167 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 14:47:53,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:53,133 INFO L93 Difference]: Finished difference Result 12660 states and 19461 transitions. [2021-11-19 14:47:53,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:47:53,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2021-11-19 14:47:53,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:53,168 INFO L225 Difference]: With dead ends: 12660 [2021-11-19 14:47:53,168 INFO L226 Difference]: Without dead ends: 8484 [2021-11-19 14:47:53,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:47:53,185 INFO L933 BasicCegarLoop]: 3236 mSDtfsCounter, 108 mSDsluCounter, 3396 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 6399 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:53,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 6399 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:47:53,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2021-11-19 14:47:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 8336. [2021-11-19 14:47:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8336 states, 7299 states have (on average 1.5932319495821345) internal successors, (11629), 7315 states have internal predecessors, (11629), 615 states have call successors, (615), 420 states have call predecessors, (615), 420 states have return successors, (615), 601 states have call predecessors, (615), 615 states have call successors, (615) [2021-11-19 14:47:53,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 12859 transitions. [2021-11-19 14:47:53,640 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 12859 transitions. Word has length 121 [2021-11-19 14:47:53,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:53,641 INFO L470 AbstractCegarLoop]: Abstraction has 8336 states and 12859 transitions. [2021-11-19 14:47:53,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 14:47:53,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 12859 transitions. [2021-11-19 14:47:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 14:47:53,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:53,672 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:53,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:53,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:53,886 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:53,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:53,886 INFO L85 PathProgramCache]: Analyzing trace with hash 207404714, now seen corresponding path program 1 times [2021-11-19 14:47:53,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:53,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752142500] [2021-11-19 14:47:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:53,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 17 proven. 31 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-19 14:47:53,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:47:53,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752142500] [2021-11-19 14:47:53,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752142500] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:53,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235784659] [2021-11-19 14:47:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:53,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:53,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:53,971 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:53,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 14:47:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:54,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:47:54,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 14:47:54,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-19 14:47:54,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235784659] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:47:54,536 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:47:54,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2021-11-19 14:47:54,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110031786] [2021-11-19 14:47:54,536 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:47:54,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:47:54,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:47:54,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:47:54,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:47:54,538 INFO L87 Difference]: Start difference. First operand 8336 states and 12859 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-19 14:47:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:55,441 INFO L93 Difference]: Finished difference Result 12476 states and 18793 transitions. [2021-11-19 14:47:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:47:55,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2021-11-19 14:47:55,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:55,469 INFO L225 Difference]: With dead ends: 12476 [2021-11-19 14:47:55,469 INFO L226 Difference]: Without dead ends: 8972 [2021-11-19 14:47:55,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:47:55,481 INFO L933 BasicCegarLoop]: 3197 mSDtfsCounter, 3410 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3410 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:55,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3410 Valid, 6355 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:47:55,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8972 states. [2021-11-19 14:47:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8972 to 8972. [2021-11-19 14:47:55,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 7851 states have (on average 1.5650235638772132) internal successors, (12287), 7867 states have internal predecessors, (12287), 643 states have call successors, (643), 476 states have call predecessors, (643), 476 states have return successors, (643), 629 states have call predecessors, (643), 643 states have call successors, (643) [2021-11-19 14:47:55,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 13573 transitions. [2021-11-19 14:47:55,895 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 13573 transitions. Word has length 121 [2021-11-19 14:47:55,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:55,896 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 13573 transitions. [2021-11-19 14:47:55,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-19 14:47:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 13573 transitions. [2021-11-19 14:47:55,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-19 14:47:55,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:55,926 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:55,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:56,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:56,150 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:56,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:56,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2073228553, now seen corresponding path program 1 times [2021-11-19 14:47:56,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:56,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728950296] [2021-11-19 14:47:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:56,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 17 proven. 32 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-19 14:47:56,227 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:47:56,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728950296] [2021-11-19 14:47:56,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728950296] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:56,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579584130] [2021-11-19 14:47:56,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:56,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:56,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:56,229 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:56,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 14:47:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:56,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:47:56,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 14:47:56,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 19 proven. 32 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 14:47:57,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579584130] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:57,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:47:57,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 11 [2021-11-19 14:47:57,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504782890] [2021-11-19 14:47:57,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:47:57,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:47:57,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:47:57,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:47:57,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:47:57,053 INFO L87 Difference]: Start difference. First operand 8972 states and 13573 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:47:58,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:47:58,213 INFO L93 Difference]: Finished difference Result 18903 states and 27468 transitions. [2021-11-19 14:47:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:47:58,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 122 [2021-11-19 14:47:58,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:47:58,253 INFO L225 Difference]: With dead ends: 18903 [2021-11-19 14:47:58,253 INFO L226 Difference]: Without dead ends: 11631 [2021-11-19 14:47:58,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:47:58,274 INFO L933 BasicCegarLoop]: 3175 mSDtfsCounter, 6970 mSDsluCounter, 6698 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6983 SdHoareTripleChecker+Valid, 9421 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:47:58,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6983 Valid, 9421 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:47:58,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11631 states. [2021-11-19 14:47:58,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11631 to 11629. [2021-11-19 14:47:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11629 states, 10054 states have (on average 1.5173065446588423) internal successors, (15255), 10078 states have internal predecessors, (15255), 906 states have call successors, (906), 667 states have call predecessors, (906), 667 states have return successors, (906), 884 states have call predecessors, (906), 906 states have call successors, (906) [2021-11-19 14:47:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11629 states to 11629 states and 17067 transitions. [2021-11-19 14:47:58,751 INFO L78 Accepts]: Start accepts. Automaton has 11629 states and 17067 transitions. Word has length 122 [2021-11-19 14:47:58,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:47:58,751 INFO L470 AbstractCegarLoop]: Abstraction has 11629 states and 17067 transitions. [2021-11-19 14:47:58,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:47:58,752 INFO L276 IsEmpty]: Start isEmpty. Operand 11629 states and 17067 transitions. [2021-11-19 14:47:58,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-19 14:47:58,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:47:58,773 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:47:58,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:47:58,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable254 [2021-11-19 14:47:58,990 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:47:58,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:47:58,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2015548112, now seen corresponding path program 1 times [2021-11-19 14:47:58,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:47:58,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042125651] [2021-11-19 14:47:58,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:58,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:47:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 14 proven. 32 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 14:47:59,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:47:59,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042125651] [2021-11-19 14:47:59,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042125651] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:59,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918724547] [2021-11-19 14:47:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:47:59,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:47:59,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:47:59,069 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:47:59,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 14:47:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:47:59,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:47:59,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:47:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 14:47:59,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:47:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 29 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-19 14:47:59,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918724547] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:47:59,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:47:59,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 8 [2021-11-19 14:47:59,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228994857] [2021-11-19 14:47:59,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:47:59,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:47:59,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:47:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:47:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:47:59,624 INFO L87 Difference]: Start difference. First operand 11629 states and 17067 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 14:48:00,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:00,348 INFO L93 Difference]: Finished difference Result 18756 states and 27275 transitions. [2021-11-19 14:48:00,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:48:00,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 125 [2021-11-19 14:48:00,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:00,389 INFO L225 Difference]: With dead ends: 18756 [2021-11-19 14:48:00,389 INFO L226 Difference]: Without dead ends: 11647 [2021-11-19 14:48:00,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:48:00,409 INFO L933 BasicCegarLoop]: 3261 mSDtfsCounter, 101 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 6422 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:00,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 6422 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:48:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11647 states. [2021-11-19 14:48:00,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11647 to 11499. [2021-11-19 14:48:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11499 states, 9924 states have (on average 1.5013099556630392) internal successors, (14899), 9948 states have internal predecessors, (14899), 906 states have call successors, (906), 667 states have call predecessors, (906), 667 states have return successors, (906), 884 states have call predecessors, (906), 906 states have call successors, (906) [2021-11-19 14:48:00,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 16711 transitions. [2021-11-19 14:48:00,979 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 16711 transitions. Word has length 125 [2021-11-19 14:48:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:00,980 INFO L470 AbstractCegarLoop]: Abstraction has 11499 states and 16711 transitions. [2021-11-19 14:48:00,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 14:48:00,980 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 16711 transitions. [2021-11-19 14:48:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-19 14:48:00,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:00,997 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:01,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:01,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable255 [2021-11-19 14:48:01,210 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:01,210 INFO L85 PathProgramCache]: Analyzing trace with hash -839911760, now seen corresponding path program 1 times [2021-11-19 14:48:01,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:01,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902428137] [2021-11-19 14:48:01,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:01,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 14 proven. 30 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 14:48:01,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:01,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902428137] [2021-11-19 14:48:01,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902428137] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:01,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066309188] [2021-11-19 14:48:01,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:01,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:01,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:01,302 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:01,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-19 14:48:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:01,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:48:01,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 14:48:01,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:02,081 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 13 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-19 14:48:02,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066309188] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:02,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:48:02,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 8 [2021-11-19 14:48:02,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815281159] [2021-11-19 14:48:02,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:02,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:48:02,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:02,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:48:02,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:48:02,083 INFO L87 Difference]: Start difference. First operand 11499 states and 16711 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 14:48:03,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:03,141 INFO L93 Difference]: Finished difference Result 29057 states and 40451 transitions. [2021-11-19 14:48:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:48:03,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 125 [2021-11-19 14:48:03,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:03,211 INFO L225 Difference]: With dead ends: 29057 [2021-11-19 14:48:03,211 INFO L226 Difference]: Without dead ends: 19258 [2021-11-19 14:48:03,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:48:03,235 INFO L933 BasicCegarLoop]: 3254 mSDtfsCounter, 3399 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3399 SdHoareTripleChecker+Valid, 6611 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:03,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3399 Valid, 6611 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:48:03,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19258 states. [2021-11-19 14:48:04,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19258 to 19231. [2021-11-19 14:48:04,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19231 states, 16311 states have (on average 1.4358408436024768) internal successors, (23420), 16381 states have internal predecessors, (23420), 1672 states have call successors, (1672), 1222 states have call predecessors, (1672), 1246 states have return successors, (1744), 1628 states have call predecessors, (1744), 1672 states have call successors, (1744) [2021-11-19 14:48:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19231 states to 19231 states and 26836 transitions. [2021-11-19 14:48:04,163 INFO L78 Accepts]: Start accepts. Automaton has 19231 states and 26836 transitions. Word has length 125 [2021-11-19 14:48:04,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:04,163 INFO L470 AbstractCegarLoop]: Abstraction has 19231 states and 26836 transitions. [2021-11-19 14:48:04,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 14:48:04,164 INFO L276 IsEmpty]: Start isEmpty. Operand 19231 states and 26836 transitions. [2021-11-19 14:48:04,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 14:48:04,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:04,186 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:04,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:04,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable256 [2021-11-19 14:48:04,402 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:04,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:04,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2030754213, now seen corresponding path program 1 times [2021-11-19 14:48:04,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:04,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592585639] [2021-11-19 14:48:04,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:04,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:04,461 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-19 14:48:04,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:04,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592585639] [2021-11-19 14:48:04,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592585639] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:04,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819114354] [2021-11-19 14:48:04,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:04,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:04,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:04,463 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:04,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 14:48:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:04,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:48:04,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 14:48:04,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:05,081 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 31 proven. 14 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-19 14:48:05,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819114354] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:05,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:48:05,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 8 [2021-11-19 14:48:05,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391497537] [2021-11-19 14:48:05,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:05,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:48:05,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:05,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:48:05,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:48:05,085 INFO L87 Difference]: Start difference. First operand 19231 states and 26836 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:48:05,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:05,891 INFO L93 Difference]: Finished difference Result 23579 states and 32835 transitions. [2021-11-19 14:48:05,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:48:05,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 126 [2021-11-19 14:48:05,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:05,955 INFO L225 Difference]: With dead ends: 23579 [2021-11-19 14:48:05,955 INFO L226 Difference]: Without dead ends: 17903 [2021-11-19 14:48:05,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:48:05,972 INFO L933 BasicCegarLoop]: 3185 mSDtfsCounter, 28 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 6351 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:05,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 6351 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:48:05,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17903 states. [2021-11-19 14:48:06,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17903 to 17627. [2021-11-19 14:48:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17627 states, 14899 states have (on average 1.445801731659843) internal successors, (21541), 14933 states have internal predecessors, (21541), 1588 states have call successors, (1588), 1138 states have call predecessors, (1588), 1138 states have return successors, (1588), 1556 states have call predecessors, (1588), 1588 states have call successors, (1588) [2021-11-19 14:48:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17627 states to 17627 states and 24717 transitions. [2021-11-19 14:48:06,970 INFO L78 Accepts]: Start accepts. Automaton has 17627 states and 24717 transitions. Word has length 126 [2021-11-19 14:48:06,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:06,970 INFO L470 AbstractCegarLoop]: Abstraction has 17627 states and 24717 transitions. [2021-11-19 14:48:06,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:48:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 17627 states and 24717 transitions. [2021-11-19 14:48:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 14:48:06,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:06,984 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:07,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:07,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable257 [2021-11-19 14:48:07,185 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:07,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash -495060490, now seen corresponding path program 1 times [2021-11-19 14:48:07,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:07,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437162986] [2021-11-19 14:48:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:07,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 18 proven. 34 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 14:48:07,275 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:07,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437162986] [2021-11-19 14:48:07,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437162986] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:07,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863299532] [2021-11-19 14:48:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:07,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:07,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:07,277 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:07,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-19 14:48:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:07,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:48:07,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 14:48:07,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 37 proven. 11 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 14:48:07,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863299532] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:07,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:48:07,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 10 [2021-11-19 14:48:07,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721542406] [2021-11-19 14:48:07,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:07,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:48:07,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:07,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:48:07,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:48:07,908 INFO L87 Difference]: Start difference. First operand 17627 states and 24717 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:48:08,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:08,769 INFO L93 Difference]: Finished difference Result 30343 states and 41900 transitions. [2021-11-19 14:48:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:48:08,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 128 [2021-11-19 14:48:08,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:08,840 INFO L225 Difference]: With dead ends: 30343 [2021-11-19 14:48:08,840 INFO L226 Difference]: Without dead ends: 19765 [2021-11-19 14:48:08,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:48:08,864 INFO L933 BasicCegarLoop]: 3192 mSDtfsCounter, 3356 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:08,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3356 Valid, 3228 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:48:08,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19765 states. [2021-11-19 14:48:09,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19765 to 19593. [2021-11-19 14:48:09,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19593 states, 16695 states have (on average 1.4093441150044923) internal successors, (23529), 16729 states have internal predecessors, (23529), 1624 states have call successors, (1624), 1272 states have call predecessors, (1624), 1272 states have return successors, (1746), 1592 states have call predecessors, (1746), 1624 states have call successors, (1746) [2021-11-19 14:48:09,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19593 states to 19593 states and 26899 transitions. [2021-11-19 14:48:09,984 INFO L78 Accepts]: Start accepts. Automaton has 19593 states and 26899 transitions. Word has length 128 [2021-11-19 14:48:09,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:09,985 INFO L470 AbstractCegarLoop]: Abstraction has 19593 states and 26899 transitions. [2021-11-19 14:48:09,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:48:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 19593 states and 26899 transitions. [2021-11-19 14:48:10,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-19 14:48:10,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:10,006 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:10,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:10,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable258 [2021-11-19 14:48:10,222 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:10,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash 617994564, now seen corresponding path program 1 times [2021-11-19 14:48:10,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:10,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918978518] [2021-11-19 14:48:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:10,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 14:48:10,331 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:10,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918978518] [2021-11-19 14:48:10,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918978518] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:10,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718387888] [2021-11-19 14:48:10,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:10,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:10,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:10,333 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:10,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-19 14:48:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:10,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 14:48:10,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:48:10,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 20 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-19 14:48:11,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718387888] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:11,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:48:11,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 13 [2021-11-19 14:48:11,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308973413] [2021-11-19 14:48:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:11,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:48:11,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:11,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:48:11,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:48:11,161 INFO L87 Difference]: Start difference. First operand 19593 states and 26899 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-19 14:48:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:12,616 INFO L93 Difference]: Finished difference Result 36415 states and 49298 transitions. [2021-11-19 14:48:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:48:12,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 130 [2021-11-19 14:48:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:12,685 INFO L225 Difference]: With dead ends: 36415 [2021-11-19 14:48:12,685 INFO L226 Difference]: Without dead ends: 24543 [2021-11-19 14:48:12,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:48:12,712 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 222 mSDsluCounter, 10083 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 12651 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:12,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 12651 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:48:12,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24543 states. [2021-11-19 14:48:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24543 to 22789. [2021-11-19 14:48:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22789 states, 19277 states have (on average 1.383150905223842) internal successors, (26663), 19291 states have internal predecessors, (26663), 2004 states have call successors, (2004), 1548 states have call predecessors, (2004), 1506 states have return successors, (2190), 1950 states have call predecessors, (2190), 2004 states have call successors, (2190) [2021-11-19 14:48:13,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22789 states to 22789 states and 30857 transitions. [2021-11-19 14:48:13,823 INFO L78 Accepts]: Start accepts. Automaton has 22789 states and 30857 transitions. Word has length 130 [2021-11-19 14:48:13,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:13,823 INFO L470 AbstractCegarLoop]: Abstraction has 22789 states and 30857 transitions. [2021-11-19 14:48:13,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-19 14:48:13,824 INFO L276 IsEmpty]: Start isEmpty. Operand 22789 states and 30857 transitions. [2021-11-19 14:48:13,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-19 14:48:13,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:13,841 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:13,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:14,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:14,042 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:14,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:14,043 INFO L85 PathProgramCache]: Analyzing trace with hash 794101891, now seen corresponding path program 1 times [2021-11-19 14:48:14,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:14,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520464037] [2021-11-19 14:48:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:14,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:14,206 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 32 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 14:48:14,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:14,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520464037] [2021-11-19 14:48:14,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520464037] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:14,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676324988] [2021-11-19 14:48:14,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:14,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:14,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:14,209 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:14,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-19 14:48:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:14,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:48:14,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 14:48:14,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 32 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 14:48:14,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676324988] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:14,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:48:14,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 8 [2021-11-19 14:48:14,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660143425] [2021-11-19 14:48:14,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:14,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:48:14,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:14,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:48:14,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:48:14,854 INFO L87 Difference]: Start difference. First operand 22789 states and 30857 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:48:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:16,494 INFO L93 Difference]: Finished difference Result 52326 states and 69188 transitions. [2021-11-19 14:48:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:48:16,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 124 [2021-11-19 14:48:16,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:16,568 INFO L225 Difference]: With dead ends: 52326 [2021-11-19 14:48:16,568 INFO L226 Difference]: Without dead ends: 31282 [2021-11-19 14:48:16,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:48:16,604 INFO L933 BasicCegarLoop]: 3181 mSDtfsCounter, 3596 mSDsluCounter, 6785 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 9496 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:16,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3609 Valid, 9496 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:48:16,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31282 states. [2021-11-19 14:48:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31282 to 31268. [2021-11-19 14:48:18,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31268 states, 26262 states have (on average 1.3459751732541314) internal successors, (35348), 26282 states have internal predecessors, (35348), 2856 states have call successors, (2856), 2208 states have call predecessors, (2856), 2148 states have return successors, (3132), 2778 states have call predecessors, (3132), 2856 states have call successors, (3132) [2021-11-19 14:48:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31268 states to 31268 states and 41336 transitions. [2021-11-19 14:48:18,184 INFO L78 Accepts]: Start accepts. Automaton has 31268 states and 41336 transitions. Word has length 124 [2021-11-19 14:48:18,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:18,184 INFO L470 AbstractCegarLoop]: Abstraction has 31268 states and 41336 transitions. [2021-11-19 14:48:18,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:48:18,185 INFO L276 IsEmpty]: Start isEmpty. Operand 31268 states and 41336 transitions. [2021-11-19 14:48:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 14:48:18,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:18,215 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:18,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:18,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:18,430 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1248901523, now seen corresponding path program 1 times [2021-11-19 14:48:18,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:18,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078920957] [2021-11-19 14:48:18,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:18,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 32 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-19 14:48:18,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:18,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078920957] [2021-11-19 14:48:18,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078920957] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:18,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896163201] [2021-11-19 14:48:18,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:18,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:18,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:18,520 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:18,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-19 14:48:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:18,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:48:18,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 14:48:18,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 14:48:19,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896163201] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:19,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:48:19,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 8 [2021-11-19 14:48:19,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511050026] [2021-11-19 14:48:19,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:19,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:48:19,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:19,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:48:19,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:48:19,155 INFO L87 Difference]: Start difference. First operand 31268 states and 41336 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 14:48:20,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:20,837 INFO L93 Difference]: Finished difference Result 51535 states and 68699 transitions. [2021-11-19 14:48:20,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:48:20,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2021-11-19 14:48:20,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:20,907 INFO L225 Difference]: With dead ends: 51535 [2021-11-19 14:48:20,908 INFO L226 Difference]: Without dead ends: 30713 [2021-11-19 14:48:20,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:48:20,937 INFO L933 BasicCegarLoop]: 3255 mSDtfsCounter, 103 mSDsluCounter, 3393 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6415 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:20,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 6415 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:48:20,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30713 states. [2021-11-19 14:48:22,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30713 to 30449. [2021-11-19 14:48:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30449 states, 25555 states have (on average 1.3261201330463706) internal successors, (33889), 25575 states have internal predecessors, (33889), 2794 states have call successors, (2794), 2158 states have call predecessors, (2794), 2098 states have return successors, (3070), 2716 states have call predecessors, (3070), 2794 states have call successors, (3070) [2021-11-19 14:48:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30449 states to 30449 states and 39753 transitions. [2021-11-19 14:48:22,343 INFO L78 Accepts]: Start accepts. Automaton has 30449 states and 39753 transitions. Word has length 128 [2021-11-19 14:48:22,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:22,344 INFO L470 AbstractCegarLoop]: Abstraction has 30449 states and 39753 transitions. [2021-11-19 14:48:22,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-19 14:48:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 30449 states and 39753 transitions. [2021-11-19 14:48:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 14:48:22,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:22,363 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:22,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-19 14:48:22,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:22,565 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:22,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:22,565 INFO L85 PathProgramCache]: Analyzing trace with hash 123539081, now seen corresponding path program 1 times [2021-11-19 14:48:22,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:22,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987182857] [2021-11-19 14:48:22,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:22,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:22,624 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 19 proven. 32 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-19 14:48:22,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:22,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987182857] [2021-11-19 14:48:22,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987182857] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:22,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465992270] [2021-11-19 14:48:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:22,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:22,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:22,626 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:22,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-19 14:48:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:22,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:48:22,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 14:48:23,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 19 proven. 32 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-19 14:48:23,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465992270] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:23,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:48:23,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 8 [2021-11-19 14:48:23,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862391408] [2021-11-19 14:48:23,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:23,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:48:23,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:23,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:48:23,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:48:23,492 INFO L87 Difference]: Start difference. First operand 30449 states and 39753 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:48:26,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:26,077 INFO L93 Difference]: Finished difference Result 71213 states and 91063 transitions. [2021-11-19 14:48:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:48:26,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 126 [2021-11-19 14:48:26,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:26,177 INFO L225 Difference]: With dead ends: 71213 [2021-11-19 14:48:26,177 INFO L226 Difference]: Without dead ends: 42509 [2021-11-19 14:48:26,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:48:26,216 INFO L933 BasicCegarLoop]: 3172 mSDtfsCounter, 3604 mSDsluCounter, 6771 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3617 SdHoareTripleChecker+Valid, 9476 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:26,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3617 Valid, 9476 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:48:26,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42509 states. [2021-11-19 14:48:28,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42509 to 42507. [2021-11-19 14:48:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42507 states, 35501 states have (on average 1.2917100926734457) internal successors, (45857), 35533 states have internal predecessors, (45857), 3998 states have call successors, (3998), 3090 states have call predecessors, (3998), 3006 states have return successors, (4346), 3884 states have call predecessors, (4346), 3998 states have call successors, (4346) [2021-11-19 14:48:28,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42507 states to 42507 states and 54201 transitions. [2021-11-19 14:48:28,419 INFO L78 Accepts]: Start accepts. Automaton has 42507 states and 54201 transitions. Word has length 126 [2021-11-19 14:48:28,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:28,419 INFO L470 AbstractCegarLoop]: Abstraction has 42507 states and 54201 transitions. [2021-11-19 14:48:28,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:48:28,420 INFO L276 IsEmpty]: Start isEmpty. Operand 42507 states and 54201 transitions. [2021-11-19 14:48:28,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 14:48:28,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:28,444 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:28,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:28,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:28,645 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:28,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:28,646 INFO L85 PathProgramCache]: Analyzing trace with hash -990289165, now seen corresponding path program 1 times [2021-11-19 14:48:28,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:28,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767207581] [2021-11-19 14:48:28,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:28,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-19 14:48:28,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:28,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767207581] [2021-11-19 14:48:28,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767207581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:28,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:28,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 14:48:28,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848978846] [2021-11-19 14:48:28,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:28,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:48:28,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:28,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:48:28,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:28,704 INFO L87 Difference]: Start difference. First operand 42507 states and 54201 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:48:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:31,701 INFO L93 Difference]: Finished difference Result 70721 states and 89772 transitions. [2021-11-19 14:48:31,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:48:31,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 127 [2021-11-19 14:48:31,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:31,796 INFO L225 Difference]: With dead ends: 70721 [2021-11-19 14:48:31,796 INFO L226 Difference]: Without dead ends: 48109 [2021-11-19 14:48:31,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:48:31,827 INFO L933 BasicCegarLoop]: 3217 mSDtfsCounter, 3387 mSDsluCounter, 3455 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 6426 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:31,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3387 Valid, 6426 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:48:31,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48109 states. [2021-11-19 14:48:34,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48109 to 47239. [2021-11-19 14:48:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47239 states, 39897 states have (on average 1.2700954959019475) internal successors, (50673), 40013 states have internal predecessors, (50673), 4034 states have call successors, (4034), 3294 states have call predecessors, (4034), 3306 states have return successors, (4466), 3932 states have call predecessors, (4466), 4034 states have call successors, (4466) [2021-11-19 14:48:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47239 states to 47239 states and 59173 transitions. [2021-11-19 14:48:34,622 INFO L78 Accepts]: Start accepts. Automaton has 47239 states and 59173 transitions. Word has length 127 [2021-11-19 14:48:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:34,623 INFO L470 AbstractCegarLoop]: Abstraction has 47239 states and 59173 transitions. [2021-11-19 14:48:34,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:48:34,623 INFO L276 IsEmpty]: Start isEmpty. Operand 47239 states and 59173 transitions. [2021-11-19 14:48:34,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 14:48:34,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:34,649 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:34,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-11-19 14:48:34,650 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:34,650 INFO L85 PathProgramCache]: Analyzing trace with hash 223404587, now seen corresponding path program 1 times [2021-11-19 14:48:34,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:34,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892361621] [2021-11-19 14:48:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:34,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-19 14:48:34,715 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:34,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892361621] [2021-11-19 14:48:34,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892361621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:34,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:34,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 14:48:34,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642895482] [2021-11-19 14:48:34,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:34,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:48:34,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:48:34,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:48:34,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:48:34,718 INFO L87 Difference]: Start difference. First operand 47239 states and 59173 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:48:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:38,474 INFO L93 Difference]: Finished difference Result 88669 states and 110678 transitions. [2021-11-19 14:48:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:48:38,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 128 [2021-11-19 14:48:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:38,691 INFO L225 Difference]: With dead ends: 88669 [2021-11-19 14:48:38,691 INFO L226 Difference]: Without dead ends: 63381 [2021-11-19 14:48:38,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:48:38,732 INFO L933 BasicCegarLoop]: 3238 mSDtfsCounter, 126 mSDsluCounter, 6781 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 9551 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:38,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 9551 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:48:38,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63381 states. [2021-11-19 14:48:42,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63381 to 59970. [2021-11-19 14:48:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59970 states, 50154 states have (on average 1.2524025999920245) internal successors, (62813), 50258 states have internal predecessors, (62813), 5461 states have call successors, (5461), 4355 states have call predecessors, (5461), 4353 states have return successors, (6375), 5357 states have call predecessors, (6375), 5461 states have call successors, (6375) [2021-11-19 14:48:42,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59970 states to 59970 states and 74649 transitions. [2021-11-19 14:48:42,439 INFO L78 Accepts]: Start accepts. Automaton has 59970 states and 74649 transitions. Word has length 128 [2021-11-19 14:48:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:42,440 INFO L470 AbstractCegarLoop]: Abstraction has 59970 states and 74649 transitions. [2021-11-19 14:48:42,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-19 14:48:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 59970 states and 74649 transitions. [2021-11-19 14:48:42,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-19 14:48:42,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:42,479 INFO L514 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:42,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-11-19 14:48:42,480 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:42,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1246250568, now seen corresponding path program 1 times [2021-11-19 14:48:42,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:48:42,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822636861] [2021-11-19 14:48:42,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:42,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:48:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 14:48:42,577 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:48:42,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822636861] [2021-11-19 14:48:42,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822636861] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:48:42,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405155566] [2021-11-19 14:48:42,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:42,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:48:42,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:42,579 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:48:42,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c9a596-b0bd-45e6-883e-883922ea66a8/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-19 14:48:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:42,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 14:48:42,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 66 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 14:48:43,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-19 14:48:43,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405155566] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:48:43,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [346124145] [2021-11-19 14:48:43,792 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2021-11-19 14:48:43,792 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:48:43,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:48:43,793 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:48:43,793 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:48:44,030 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size [2021-11-19 14:48:44,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-19 14:48:44,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:44,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-19 14:48:44,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:44,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-19 14:48:44,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,330 INFO L180 QuantifierPusher]: treesize reduction 267, result has 49.9 percent of original size [2021-11-19 14:48:44,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-11-19 14:48:44,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,419 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:44,432 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-19 14:48:44,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:44,447 INFO L185 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size 41 [2021-11-19 14:48:44,448 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:48:44,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:44,805 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:48:45,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-19 14:48:45,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-11-19 14:48:45,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-19 14:48:45,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-19 14:48:45,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,403 INFO L185 QuantifierPusher]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-11-19 14:48:45,406 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.5 percent of original size [2021-11-19 14:48:45,409 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.0 percent of original size 96 [2021-11-19 14:48:45,414 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-11-19 14:48:45,418 INFO L185 QuantifierPusher]: treesize reduction 5, result has 96.1 percent of original size 124 [2021-11-19 14:48:45,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,480 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.3 percent of original size 82 [2021-11-19 14:48:45,485 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.0 percent of original size [2021-11-19 14:48:45,488 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.7 percent of original size 110 [2021-11-19 14:48:45,502 INFO L180 QuantifierPusher]: treesize reduction 9, result has 97.3 percent of original size [2021-11-19 14:48:45,510 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:48:45,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:45,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:45,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-19 14:48:45,561 INFO L180 QuantifierPusher]: treesize reduction 9, result has 97.3 percent of original size [2021-11-19 14:48:45,568 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:48:45,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:45,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:45,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:45,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:45,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:45,755 INFO L185 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size 41 [2021-11-19 14:48:45,755 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:48:46,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,050 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-19 14:48:46,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:46,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-11-19 14:48:46,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:46,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:48:46,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:46,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:48:46,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,457 INFO L180 QuantifierPusher]: treesize reduction 14, result has 93.0 percent of original size [2021-11-19 14:48:46,461 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-19 14:48:46,469 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-19 14:48:46,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:46,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:46,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,522 INFO L180 QuantifierPusher]: treesize reduction 12, result has 93.8 percent of original size [2021-11-19 14:48:46,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:46,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,547 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:46,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,641 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.6 percent of original size [2021-11-19 14:48:46,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-11-19 14:48:46,670 INFO L180 QuantifierPusher]: treesize reduction 21, result has 93.4 percent of original size [2021-11-19 14:48:46,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:48:46,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:46,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,694 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.6 percent of original size [2021-11-19 14:48:46,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-11-19 14:48:46,713 INFO L180 QuantifierPusher]: treesize reduction 21, result has 93.4 percent of original size [2021-11-19 14:48:46,722 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:48:46,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:46,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:46,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,804 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.2 percent of original size [2021-11-19 14:48:46,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:46,815 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.6 percent of original size [2021-11-19 14:48:46,821 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,826 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.2 percent of original size [2021-11-19 14:48:46,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:46,841 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.6 percent of original size [2021-11-19 14:48:46,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-11-19 14:48:46,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,912 INFO L180 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size [2021-11-19 14:48:46,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:46,919 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.5 percent of original size [2021-11-19 14:48:46,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-19 14:48:46,927 INFO L180 QuantifierPusher]: treesize reduction 12, result has 93.7 percent of original size [2021-11-19 14:48:46,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:46,953 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.5 percent of original size [2021-11-19 14:48:46,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-19 14:48:46,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:46,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,110 INFO L180 QuantifierPusher]: treesize reduction 20, result has 90.4 percent of original size [2021-11-19 14:48:47,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-11-19 14:48:47,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:47,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 14:48:47,146 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:47,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-11-19 14:48:47,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,249 INFO L180 QuantifierPusher]: treesize reduction 20, result has 91.8 percent of original size [2021-11-19 14:48:47,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-11-19 14:48:47,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-11-19 14:48:47,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:47,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,322 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 14:48:47,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,335 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:47,339 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 14:48:47,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,432 INFO L180 QuantifierPusher]: treesize reduction 20, result has 91.4 percent of original size [2021-11-19 14:48:47,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-19 14:48:47,445 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-19 14:48:47,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:47,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:47,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:47,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,539 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.1 percent of original size [2021-11-19 14:48:47,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:47,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:47,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:47,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:47,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:47,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,746 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.9 percent of original size [2021-11-19 14:48:47,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-11-19 14:48:47,775 INFO L180 QuantifierPusher]: treesize reduction 27, result has 92.4 percent of original size [2021-11-19 14:48:47,787 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:48:47,788 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:47,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:47,799 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.9 percent of original size [2021-11-19 14:48:47,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-11-19 14:48:47,820 INFO L180 QuantifierPusher]: treesize reduction 27, result has 92.4 percent of original size [2021-11-19 14:48:47,831 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:48:47,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:47,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:47,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:47,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:47,940 INFO L180 QuantifierPusher]: treesize reduction 18, result has 93.7 percent of original size [2021-11-19 14:48:47,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:47,954 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.9 percent of original size [2021-11-19 14:48:47,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:47,973 INFO L180 QuantifierPusher]: treesize reduction 18, result has 93.7 percent of original size [2021-11-19 14:48:47,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-19 14:48:47,987 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.9 percent of original size [2021-11-19 14:48:47,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:47,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,108 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.0 percent of original size [2021-11-19 14:48:48,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:48,123 INFO L180 QuantifierPusher]: treesize reduction 18, result has 94.0 percent of original size [2021-11-19 14:48:48,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-19 14:48:48,140 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.0 percent of original size [2021-11-19 14:48:48,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:48,154 INFO L180 QuantifierPusher]: treesize reduction 18, result has 94.0 percent of original size [2021-11-19 14:48:48,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-19 14:48:48,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,231 INFO L180 QuantifierPusher]: treesize reduction 26, result has 89.2 percent of original size [2021-11-19 14:48:48,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 14:48:48,242 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-11-19 14:48:48,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:48,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-11-19 14:48:48,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:48,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-11-19 14:48:48,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,344 INFO L180 QuantifierPusher]: treesize reduction 20, result has 91.8 percent of original size [2021-11-19 14:48:48,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-11-19 14:48:48,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-11-19 14:48:48,367 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:48,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 14:48:48,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-19 14:48:48,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-19 14:48:48,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,503 INFO L180 QuantifierPusher]: treesize reduction 20, result has 91.4 percent of original size [2021-11-19 14:48:48,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-19 14:48:48,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,563 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.1 percent of original size [2021-11-19 14:48:48,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:48:48,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-11-19 14:48:48,586 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.3 percent of original size [2021-11-19 14:48:48,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-19 14:48:48,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:48:48,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 14:48:48,612 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.2 percent of original size [2021-11-19 14:48:48,618 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:48:48,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:48,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-11-19 14:48:48,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 14:48:48,628 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.2 percent of original size [2021-11-19 14:48:48,631 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 14:48:48,632 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:48,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-11-19 14:48:48,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,644 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.2 percent of original size [2021-11-19 14:48:48,648 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:48:48,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:48:48,676 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.2 percent of original size [2021-11-19 14:48:48,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:48:48,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,745 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.2 percent of original size [2021-11-19 14:48:48,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-11-19 14:48:48,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-19 14:48:48,764 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:48,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-19 14:48:48,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-19 14:48:48,784 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.5 percent of original size [2021-11-19 14:48:48,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-19 14:48:48,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:48,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-19 14:48:48,817 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:48,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-19 14:48:48,832 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-19 14:48:48,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-19 14:48:48,844 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:48,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-19 14:48:48,864 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-19 14:48:48,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-19 14:48:48,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,955 INFO L180 QuantifierPusher]: treesize reduction 74, result has 76.6 percent of original size [2021-11-19 14:48:48,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-19 14:48:48,964 INFO L180 QuantifierPusher]: treesize reduction 234, result has 0.4 percent of original size [2021-11-19 14:48:48,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:48,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:48,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,047 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-11-19 14:48:49,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-11-19 14:48:49,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,058 INFO L185 QuantifierPusher]: treesize reduction 6, result has 97.1 percent of original size 200 [2021-11-19 14:48:49,062 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.7 percent of original size [2021-11-19 14:48:49,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-19 14:48:49,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:48:49,096 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.2 percent of original size [2021-11-19 14:48:49,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:48:49,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:48:49,124 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.2 percent of original size [2021-11-19 14:48:49,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:48:49,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,189 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.2 percent of original size [2021-11-19 14:48:49,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-11-19 14:48:49,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,207 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-19 14:48:49,214 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:49,228 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-19 14:48:49,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-19 14:48:49,248 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.5 percent of original size [2021-11-19 14:48:49,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-19 14:48:49,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-19 14:48:49,278 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:49,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-19 14:48:49,296 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-19 14:48:49,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-19 14:48:49,312 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:49,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-19 14:48:49,329 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-19 14:48:49,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-19 14:48:49,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,430 INFO L180 QuantifierPusher]: treesize reduction 74, result has 76.6 percent of original size [2021-11-19 14:48:49,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-19 14:48:49,445 INFO L180 QuantifierPusher]: treesize reduction 234, result has 0.4 percent of original size [2021-11-19 14:48:49,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:49,463 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.8 percent of original size [2021-11-19 14:48:49,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-11-19 14:48:49,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,484 INFO L185 QuantifierPusher]: treesize reduction 6, result has 97.1 percent of original size 200 [2021-11-19 14:48:49,497 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.7 percent of original size [2021-11-19 14:48:49,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-19 14:48:49,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,521 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:48:49,528 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.2 percent of original size [2021-11-19 14:48:49,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:48:49,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 14:48:49,558 INFO L180 QuantifierPusher]: treesize reduction 4, result has 98.2 percent of original size [2021-11-19 14:48:49,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-11-19 14:48:49,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,643 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.2 percent of original size [2021-11-19 14:48:49,646 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-11-19 14:48:49,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-19 14:48:49,664 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:49,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-19 14:48:49,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-19 14:48:49,683 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.5 percent of original size [2021-11-19 14:48:49,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-19 14:48:49,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:49,695 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-19 14:48:49,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:49,967 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:49,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-19 14:48:49,985 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-19 14:48:49,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-19 14:48:50,001 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-19 14:48:50,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-11-19 14:48:50,019 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.5 percent of original size [2021-11-19 14:48:50,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-11-19 14:48:50,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,106 INFO L180 QuantifierPusher]: treesize reduction 74, result has 76.6 percent of original size [2021-11-19 14:48:50,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-19 14:48:50,115 INFO L180 QuantifierPusher]: treesize reduction 234, result has 0.4 percent of original size [2021-11-19 14:48:50,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 14:48:50,123 INFO L180 QuantifierPusher]: treesize reduction 20, result has 91.8 percent of original size [2021-11-19 14:48:50,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-11-19 14:48:50,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:48:50,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-11-19 14:48:50,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:48:50,338 INFO L180 QuantifierPusher]: treesize reduction 6, result has 96.8 percent of original size [2021-11-19 14:48:50,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-11-19 14:48:50,347 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-11-19 14:48:50,351 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247