./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.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_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/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_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/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_4d60d96e-44c2-4240-93a9-4466fd16d48a/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 379867ea0961f41e6474fa8c55575cf4bd65e7485349e160061a341c7749e45b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:04:01,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:04:01,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:04:01,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:04:01,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:04:01,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:04:01,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:04:01,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:04:01,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:04:01,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:04:01,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:04:01,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:04:01,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:04:01,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:04:01,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:04:01,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:04:01,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:04:01,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:04:01,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:04:01,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:04:01,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:04:01,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:04:01,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:04:01,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:04:01,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:04:01,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:04:01,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:04:01,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:04:01,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:04:01,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:04:01,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:04:01,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:04:01,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:04:01,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:04:01,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:04:01,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:04:01,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:04:01,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:04:01,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:04:01,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:04:01,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:04:01,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 15:04:01,727 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:04:01,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:04:01,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:04:01,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:04:01,729 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:04:01,729 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:04:01,729 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:04:01,730 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:04:01,730 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:04:01,730 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:04:01,730 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:04:01,731 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:04:01,731 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:04:01,731 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:04:01,731 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:04:01,732 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:04:01,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:04:01,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 15:04:01,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:04:01,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 15:04:01,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:04:01,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:04:01,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:04:01,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:04:01,735 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:04:01,735 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 15:04:01,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:04:01,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:04:01,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:04:01,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:04:01,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:04:01,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:04:01,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:04:01,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:04:01,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:04:01,737 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:04:01,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:04:01,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:04:01,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:04:01,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:04:01,738 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_4d60d96e-44c2-4240-93a9-4466fd16d48a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 379867ea0961f41e6474fa8c55575cf4bd65e7485349e160061a341c7749e45b [2021-11-19 15:04:01,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:04:01,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:04:02,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:04:02,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:04:02,004 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:04:02,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2021-11-19 15:04:02,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/data/ba1d80540/8cd0530fa0654edd9801598533e77d93/FLAG7f0b4dcce [2021-11-19 15:04:02,684 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:04:02,684 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2021-11-19 15:04:02,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/data/ba1d80540/8cd0530fa0654edd9801598533e77d93/FLAG7f0b4dcce [2021-11-19 15:04:02,962 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/data/ba1d80540/8cd0530fa0654edd9801598533e77d93 [2021-11-19 15:04:02,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:04:02,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:04:02,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:02,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:04:02,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:04:02,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:02" (1/1) ... [2021-11-19 15:04:02,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f978ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:02, skipping insertion in model container [2021-11-19 15:04:02,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:02" (1/1) ... [2021-11-19 15:04:02,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:04:03,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:04:03,322 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_4d60d96e-44c2-4240-93a9-4466fd16d48a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7471,7484] [2021-11-19 15:04:03,366 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:03,391 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:04:03,454 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_4d60d96e-44c2-4240-93a9-4466fd16d48a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7471,7484] [2021-11-19 15:04:03,485 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:04:03,502 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:04:03,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03 WrapperNode [2021-11-19 15:04:03,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:04:03,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:04:03,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:04:03,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:04:03,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,575 INFO L137 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 613 [2021-11-19 15:04:03,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:04:03,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:04:03,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:04:03,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:04:03,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:04:03,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:04:03,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:04:03,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:04:03,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (1/1) ... [2021-11-19 15:04:03,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:04:03,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:04:03,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:04:03,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:04:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:04:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 15:04:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:04:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:04:03,870 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:04:03,871 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:04:04,465 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:04:04,636 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:04:04,637 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:04:04,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:04 BoogieIcfgContainer [2021-11-19 15:04:04,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:04:04,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:04:04,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:04:04,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:04:04,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:04:02" (1/3) ... [2021-11-19 15:04:04,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f4e7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:04:04, skipping insertion in model container [2021-11-19 15:04:04,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:03" (2/3) ... [2021-11-19 15:04:04,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f4e7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:04:04, skipping insertion in model container [2021-11-19 15:04:04,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:04" (3/3) ... [2021-11-19 15:04:04,649 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2021-11-19 15:04:04,655 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:04:04,656 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:04:04,707 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:04:04,715 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 15:04:04,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:04:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 119 states have (on average 1.6890756302521008) internal successors, (201), 120 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-19 15:04:04,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:04,743 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 15:04:04,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:04,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:04,750 INFO L85 PathProgramCache]: Analyzing trace with hash 49293024, now seen corresponding path program 1 times [2021-11-19 15:04:04,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:04,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189513528] [2021-11-19 15:04:04,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:04,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:05,147 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 15:04:05,148 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:05,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189513528] [2021-11-19 15:04:05,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189513528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:05,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:05,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 15:04:05,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644588618] [2021-11-19 15:04:05,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:05,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:04:05,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:04:05,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:04:05,187 INFO L87 Difference]: Start difference. First operand has 121 states, 119 states have (on average 1.6890756302521008) internal successors, (201), 120 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:05,414 INFO L93 Difference]: Finished difference Result 328 states and 524 transitions. [2021-11-19 15:04:05,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:04:05,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-19 15:04:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:05,430 INFO L225 Difference]: With dead ends: 328 [2021-11-19 15:04:05,430 INFO L226 Difference]: Without dead ends: 244 [2021-11-19 15:04:05,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:04:05,438 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 362 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:05,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 692 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:04:05,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-19 15:04:05,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2021-11-19 15:04:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 1.3723849372384938) internal successors, (328), 239 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:05,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 328 transitions. [2021-11-19 15:04:05,508 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 328 transitions. Word has length 43 [2021-11-19 15:04:05,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:05,509 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 328 transitions. [2021-11-19 15:04:05,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 328 transitions. [2021-11-19 15:04:05,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 15:04:05,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:05,512 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, 1] [2021-11-19 15:04:05,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 15:04:05,513 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:05,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:05,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1816358382, now seen corresponding path program 1 times [2021-11-19 15:04:05,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:05,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570622704] [2021-11-19 15:04:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:05,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:05,684 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 15:04:05,684 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:05,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570622704] [2021-11-19 15:04:05,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570622704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:05,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:05,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 15:04:05,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092678509] [2021-11-19 15:04:05,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:05,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:04:05,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:04:05,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:04:05,692 INFO L87 Difference]: Start difference. First operand 240 states and 328 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:05,960 INFO L93 Difference]: Finished difference Result 531 states and 737 transitions. [2021-11-19 15:04:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:04:05,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-19 15:04:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:05,964 INFO L225 Difference]: With dead ends: 531 [2021-11-19 15:04:05,965 INFO L226 Difference]: Without dead ends: 318 [2021-11-19 15:04:05,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:04:05,968 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 416 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:05,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 167 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:04:05,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-11-19 15:04:06,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 316. [2021-11-19 15:04:06,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.3746031746031746) internal successors, (433), 315 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:06,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 433 transitions. [2021-11-19 15:04:06,023 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 433 transitions. Word has length 44 [2021-11-19 15:04:06,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:06,028 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 433 transitions. [2021-11-19 15:04:06,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:06,029 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 433 transitions. [2021-11-19 15:04:06,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 15:04:06,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:06,039 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, 1] [2021-11-19 15:04:06,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 15:04:06,040 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:06,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:06,045 INFO L85 PathProgramCache]: Analyzing trace with hash -871506975, now seen corresponding path program 1 times [2021-11-19 15:04:06,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:06,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109829391] [2021-11-19 15:04:06,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:06,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:06,193 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 15:04:06,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:06,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109829391] [2021-11-19 15:04:06,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109829391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:06,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:06,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 15:04:06,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848431577] [2021-11-19 15:04:06,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:06,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:04:06,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:06,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:04:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:04:06,199 INFO L87 Difference]: Start difference. First operand 316 states and 433 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:06,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:06,430 INFO L93 Difference]: Finished difference Result 765 states and 1070 transitions. [2021-11-19 15:04:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:04:06,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-19 15:04:06,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:06,435 INFO L225 Difference]: With dead ends: 765 [2021-11-19 15:04:06,435 INFO L226 Difference]: Without dead ends: 492 [2021-11-19 15:04:06,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:04:06,447 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 395 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:06,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 178 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:04:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-11-19 15:04:06,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 490. [2021-11-19 15:04:06,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.3865030674846626) internal successors, (678), 489 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 678 transitions. [2021-11-19 15:04:06,509 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 678 transitions. Word has length 44 [2021-11-19 15:04:06,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:06,510 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 678 transitions. [2021-11-19 15:04:06,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:06,510 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 678 transitions. [2021-11-19 15:04:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 15:04:06,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:06,513 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, 1] [2021-11-19 15:04:06,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 15:04:06,515 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash 170182640, now seen corresponding path program 1 times [2021-11-19 15:04:06,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:06,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960111284] [2021-11-19 15:04:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:06,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:06,609 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 15:04:06,609 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:06,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960111284] [2021-11-19 15:04:06,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960111284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:06,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:06,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 15:04:06,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155811644] [2021-11-19 15:04:06,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:06,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:04:06,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:06,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:04:06,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:04:06,612 INFO L87 Difference]: Start difference. First operand 490 states and 678 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:06,858 INFO L93 Difference]: Finished difference Result 1267 states and 1784 transitions. [2021-11-19 15:04:06,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:04:06,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-19 15:04:06,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:06,864 INFO L225 Difference]: With dead ends: 1267 [2021-11-19 15:04:06,865 INFO L226 Difference]: Without dead ends: 840 [2021-11-19 15:04:06,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:04:06,867 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 378 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:06,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 186 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:04:06,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2021-11-19 15:04:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 838. [2021-11-19 15:04:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.3954599761051374) internal successors, (1168), 837 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:06,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1168 transitions. [2021-11-19 15:04:06,960 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1168 transitions. Word has length 44 [2021-11-19 15:04:06,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:06,960 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1168 transitions. [2021-11-19 15:04:06,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:06,961 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1168 transitions. [2021-11-19 15:04:06,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 15:04:06,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:06,962 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, 1, 1] [2021-11-19 15:04:06,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 15:04:06,962 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:06,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2119626740, now seen corresponding path program 1 times [2021-11-19 15:04:06,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:06,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090346481] [2021-11-19 15:04:06,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:06,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:07,213 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 15:04:07,214 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:07,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090346481] [2021-11-19 15:04:07,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090346481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:07,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:07,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-19 15:04:07,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123493816] [2021-11-19 15:04:07,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:07,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:04:07,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:07,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:04:07,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:04:07,234 INFO L87 Difference]: Start difference. First operand 838 states and 1168 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:08,305 INFO L93 Difference]: Finished difference Result 4663 states and 6639 transitions. [2021-11-19 15:04:08,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 15:04:08,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-19 15:04:08,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:08,330 INFO L225 Difference]: With dead ends: 4663 [2021-11-19 15:04:08,330 INFO L226 Difference]: Without dead ends: 3965 [2021-11-19 15:04:08,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2021-11-19 15:04:08,333 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 1471 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:08,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 691 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 15:04:08,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2021-11-19 15:04:08,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 2483. [2021-11-19 15:04:08,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2482 states have (on average 1.3924254633360194) internal successors, (3456), 2482 states have internal predecessors, (3456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:08,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3456 transitions. [2021-11-19 15:04:08,718 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3456 transitions. Word has length 45 [2021-11-19 15:04:08,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:08,719 INFO L470 AbstractCegarLoop]: Abstraction has 2483 states and 3456 transitions. [2021-11-19 15:04:08,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:08,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3456 transitions. [2021-11-19 15:04:08,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 15:04:08,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:08,724 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, 1, 1] [2021-11-19 15:04:08,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 15:04:08,725 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:08,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:08,726 INFO L85 PathProgramCache]: Analyzing trace with hash 950711252, now seen corresponding path program 1 times [2021-11-19 15:04:08,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:08,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411268443] [2021-11-19 15:04:08,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:08,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:09,046 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 15:04:09,046 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:09,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411268443] [2021-11-19 15:04:09,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411268443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:09,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:09,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-19 15:04:09,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916554646] [2021-11-19 15:04:09,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:09,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:04:09,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:09,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:04:09,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:04:09,048 INFO L87 Difference]: Start difference. First operand 2483 states and 3456 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:10,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:10,043 INFO L93 Difference]: Finished difference Result 4263 states and 5980 transitions. [2021-11-19 15:04:10,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:04:10,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-19 15:04:10,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:10,069 INFO L225 Difference]: With dead ends: 4263 [2021-11-19 15:04:10,069 INFO L226 Difference]: Without dead ends: 3787 [2021-11-19 15:04:10,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2021-11-19 15:04:10,074 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 1302 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:10,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 871 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 15:04:10,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3787 states. [2021-11-19 15:04:10,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3787 to 3067. [2021-11-19 15:04:10,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3066 states have (on average 1.3842139595564253) internal successors, (4244), 3066 states have internal predecessors, (4244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4244 transitions. [2021-11-19 15:04:10,467 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4244 transitions. Word has length 45 [2021-11-19 15:04:10,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:10,468 INFO L470 AbstractCegarLoop]: Abstraction has 3067 states and 4244 transitions. [2021-11-19 15:04:10,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:10,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4244 transitions. [2021-11-19 15:04:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 15:04:10,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:10,469 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, 1, 1] [2021-11-19 15:04:10,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 15:04:10,470 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1433944140, now seen corresponding path program 1 times [2021-11-19 15:04:10,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:10,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297595946] [2021-11-19 15:04:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:10,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:10,690 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 15:04:10,690 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:10,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297595946] [2021-11-19 15:04:10,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297595946] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:10,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:10,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-19 15:04:10,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478002712] [2021-11-19 15:04:10,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:10,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 15:04:10,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:10,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 15:04:10,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-19 15:04:10,692 INFO L87 Difference]: Start difference. First operand 3067 states and 4244 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:11,822 INFO L93 Difference]: Finished difference Result 4801 states and 6657 transitions. [2021-11-19 15:04:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 15:04:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-19 15:04:11,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:11,850 INFO L225 Difference]: With dead ends: 4801 [2021-11-19 15:04:11,850 INFO L226 Difference]: Without dead ends: 4639 [2021-11-19 15:04:11,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-11-19 15:04:11,853 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1093 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:11,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 1074 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 15:04:11,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2021-11-19 15:04:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 3520. [2021-11-19 15:04:12,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 3519 states have (on average 1.3813583404376244) internal successors, (4861), 3519 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:12,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4861 transitions. [2021-11-19 15:04:12,302 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4861 transitions. Word has length 45 [2021-11-19 15:04:12,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:12,302 INFO L470 AbstractCegarLoop]: Abstraction has 3520 states and 4861 transitions. [2021-11-19 15:04:12,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4861 transitions. [2021-11-19 15:04:12,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-19 15:04:12,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:12,304 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, 1, 1, 1, 1] [2021-11-19 15:04:12,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 15:04:12,304 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1971554280, now seen corresponding path program 1 times [2021-11-19 15:04:12,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:12,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890604061] [2021-11-19 15:04:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:12,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:12,558 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 15:04:12,558 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:12,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890604061] [2021-11-19 15:04:12,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890604061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:12,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:12,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 15:04:12,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248363966] [2021-11-19 15:04:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:12,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:04:12,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:04:12,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:04:12,560 INFO L87 Difference]: Start difference. First operand 3520 states and 4861 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:13,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:13,522 INFO L93 Difference]: Finished difference Result 8197 states and 11371 transitions. [2021-11-19 15:04:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 15:04:13,522 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-19 15:04:13,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:13,600 INFO L225 Difference]: With dead ends: 8197 [2021-11-19 15:04:13,600 INFO L226 Difference]: Without dead ends: 7271 [2021-11-19 15:04:13,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2021-11-19 15:04:13,605 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 615 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:13,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [615 Valid, 1100 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:04:13,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2021-11-19 15:04:14,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 4856. [2021-11-19 15:04:14,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4856 states, 4855 states have (on average 1.3857878475798147) internal successors, (6728), 4855 states have internal predecessors, (6728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:14,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 6728 transitions. [2021-11-19 15:04:14,249 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 6728 transitions. Word has length 47 [2021-11-19 15:04:14,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:14,249 INFO L470 AbstractCegarLoop]: Abstraction has 4856 states and 6728 transitions. [2021-11-19 15:04:14,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 6728 transitions. [2021-11-19 15:04:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-19 15:04:14,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:14,251 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, 1, 1, 1, 1] [2021-11-19 15:04:14,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 15:04:14,251 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:14,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:14,252 INFO L85 PathProgramCache]: Analyzing trace with hash -413101112, now seen corresponding path program 1 times [2021-11-19 15:04:14,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:14,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816293027] [2021-11-19 15:04:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:14,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:14,497 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 15:04:14,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:14,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816293027] [2021-11-19 15:04:14,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816293027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:14,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:14,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 15:04:14,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384318382] [2021-11-19 15:04:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:14,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:04:14,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:14,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:04:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:04:14,500 INFO L87 Difference]: Start difference. First operand 4856 states and 6728 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:15,747 INFO L93 Difference]: Finished difference Result 7344 states and 10176 transitions. [2021-11-19 15:04:15,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 15:04:15,748 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-19 15:04:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:15,797 INFO L225 Difference]: With dead ends: 7344 [2021-11-19 15:04:15,798 INFO L226 Difference]: Without dead ends: 6646 [2021-11-19 15:04:15,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:04:15,802 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 427 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:15,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1024 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 15:04:15,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6646 states. [2021-11-19 15:04:16,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6646 to 4883. [2021-11-19 15:04:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4883 states, 4882 states have (on average 1.383654240065547) internal successors, (6755), 4882 states have internal predecessors, (6755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:16,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4883 states to 4883 states and 6755 transitions. [2021-11-19 15:04:16,368 INFO L78 Accepts]: Start accepts. Automaton has 4883 states and 6755 transitions. Word has length 47 [2021-11-19 15:04:16,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:16,368 INFO L470 AbstractCegarLoop]: Abstraction has 4883 states and 6755 transitions. [2021-11-19 15:04:16,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4883 states and 6755 transitions. [2021-11-19 15:04:16,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-19 15:04:16,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:16,370 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, 1, 1, 1, 1] [2021-11-19 15:04:16,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 15:04:16,370 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:16,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:16,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1540546472, now seen corresponding path program 1 times [2021-11-19 15:04:16,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:16,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757570942] [2021-11-19 15:04:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:16,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:16,664 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 15:04:16,664 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:16,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757570942] [2021-11-19 15:04:16,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757570942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:16,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:16,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-19 15:04:16,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72196680] [2021-11-19 15:04:16,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:16,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:04:16,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:16,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:04:16,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:04:16,666 INFO L87 Difference]: Start difference. First operand 4883 states and 6755 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:17,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:17,724 INFO L93 Difference]: Finished difference Result 8742 states and 12104 transitions. [2021-11-19 15:04:17,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 15:04:17,725 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-19 15:04:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:17,741 INFO L225 Difference]: With dead ends: 8742 [2021-11-19 15:04:17,741 INFO L226 Difference]: Without dead ends: 8588 [2021-11-19 15:04:17,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=302, Unknown=0, NotChecked=0, Total=462 [2021-11-19 15:04:17,746 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 574 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:17,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 1316 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:04:17,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8588 states. [2021-11-19 15:04:18,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8588 to 4886. [2021-11-19 15:04:18,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4886 states, 4885 states have (on average 1.3834186284544525) internal successors, (6758), 4885 states have internal predecessors, (6758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 6758 transitions. [2021-11-19 15:04:18,196 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 6758 transitions. Word has length 47 [2021-11-19 15:04:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:18,197 INFO L470 AbstractCegarLoop]: Abstraction has 4886 states and 6758 transitions. [2021-11-19 15:04:18,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 6758 transitions. [2021-11-19 15:04:18,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-19 15:04:18,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:18,198 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, 1, 1, 1, 1, 1] [2021-11-19 15:04:18,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-19 15:04:18,199 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:18,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:18,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2014191766, now seen corresponding path program 1 times [2021-11-19 15:04:18,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:18,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803748954] [2021-11-19 15:04:18,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:18,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:18,227 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 15:04:18,227 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:18,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803748954] [2021-11-19 15:04:18,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803748954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:18,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:18,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:04:18,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635119762] [2021-11-19 15:04:18,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:18,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:18,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:18,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:18,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:18,230 INFO L87 Difference]: Start difference. First operand 4886 states and 6758 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:18,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:18,587 INFO L93 Difference]: Finished difference Result 8711 states and 12117 transitions. [2021-11-19 15:04:18,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:18,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-19 15:04:18,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:18,598 INFO L225 Difference]: With dead ends: 8711 [2021-11-19 15:04:18,598 INFO L226 Difference]: Without dead ends: 4592 [2021-11-19 15:04:18,606 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 15:04:18,607 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 85 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:18,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 271 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:18,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4592 states. [2021-11-19 15:04:18,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4592 to 4588. [2021-11-19 15:04:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 4587 states have (on average 1.381294964028777) internal successors, (6336), 4587 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:19,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6336 transitions. [2021-11-19 15:04:19,014 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6336 transitions. Word has length 48 [2021-11-19 15:04:19,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:19,014 INFO L470 AbstractCegarLoop]: Abstraction has 4588 states and 6336 transitions. [2021-11-19 15:04:19,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:19,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6336 transitions. [2021-11-19 15:04:19,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-19 15:04:19,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:19,016 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, 1, 1, 1, 1, 1] [2021-11-19 15:04:19,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-19 15:04:19,016 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:19,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:19,017 INFO L85 PathProgramCache]: Analyzing trace with hash -474472813, now seen corresponding path program 1 times [2021-11-19 15:04:19,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:19,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777599677] [2021-11-19 15:04:19,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:19,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:19,044 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 15:04:19,045 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:19,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777599677] [2021-11-19 15:04:19,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777599677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:19,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:19,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:04:19,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880070322] [2021-11-19 15:04:19,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:19,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:19,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:19,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:19,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:19,048 INFO L87 Difference]: Start difference. First operand 4588 states and 6336 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:19,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:19,393 INFO L93 Difference]: Finished difference Result 8127 states and 11277 transitions. [2021-11-19 15:04:19,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:19,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-19 15:04:19,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:19,402 INFO L225 Difference]: With dead ends: 8127 [2021-11-19 15:04:19,402 INFO L226 Difference]: Without dead ends: 4335 [2021-11-19 15:04:19,407 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 15:04:19,409 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 78 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:19,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 271 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:19,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4335 states. [2021-11-19 15:04:19,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4335 to 4241. [2021-11-19 15:04:19,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4241 states, 4240 states have (on average 1.3783018867924528) internal successors, (5844), 4240 states have internal predecessors, (5844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4241 states to 4241 states and 5844 transitions. [2021-11-19 15:04:19,825 INFO L78 Accepts]: Start accepts. Automaton has 4241 states and 5844 transitions. Word has length 48 [2021-11-19 15:04:19,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:19,826 INFO L470 AbstractCegarLoop]: Abstraction has 4241 states and 5844 transitions. [2021-11-19 15:04:19,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:19,826 INFO L276 IsEmpty]: Start isEmpty. Operand 4241 states and 5844 transitions. [2021-11-19 15:04:19,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-19 15:04:19,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:19,827 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, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:19,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-19 15:04:19,828 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:19,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:19,828 INFO L85 PathProgramCache]: Analyzing trace with hash -976814404, now seen corresponding path program 1 times [2021-11-19 15:04:19,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:19,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637295210] [2021-11-19 15:04:19,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:19,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:21,527 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 15:04:21,527 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:21,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637295210] [2021-11-19 15:04:21,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637295210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:21,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:21,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-19 15:04:21,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712153311] [2021-11-19 15:04:21,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:21,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-19 15:04:21,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:21,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-19 15:04:21,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:04:21,530 INFO L87 Difference]: Start difference. First operand 4241 states and 5844 transitions. Second operand has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:26,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:26,177 INFO L93 Difference]: Finished difference Result 6046 states and 8317 transitions. [2021-11-19 15:04:26,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-19 15:04:26,177 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-19 15:04:26,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:26,189 INFO L225 Difference]: With dead ends: 6046 [2021-11-19 15:04:26,190 INFO L226 Difference]: Without dead ends: 5900 [2021-11-19 15:04:26,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=630, Invalid=1626, Unknown=0, NotChecked=0, Total=2256 [2021-11-19 15:04:26,197 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 901 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:26,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [901 Valid, 2867 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 15:04:26,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2021-11-19 15:04:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 4247. [2021-11-19 15:04:26,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4247 states, 4246 states have (on average 1.3780028261893547) internal successors, (5851), 4246 states have internal predecessors, (5851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:26,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 5851 transitions. [2021-11-19 15:04:26,641 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 5851 transitions. Word has length 49 [2021-11-19 15:04:26,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:26,641 INFO L470 AbstractCegarLoop]: Abstraction has 4247 states and 5851 transitions. [2021-11-19 15:04:26,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.130434782608696) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 5851 transitions. [2021-11-19 15:04:26,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 15:04:26,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:26,643 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:26,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-19 15:04:26,643 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:26,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:26,644 INFO L85 PathProgramCache]: Analyzing trace with hash -646748459, now seen corresponding path program 1 times [2021-11-19 15:04:26,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:26,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427109653] [2021-11-19 15:04:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:26,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:26,674 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 15:04:26,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:26,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427109653] [2021-11-19 15:04:26,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427109653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:26,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:26,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:04:26,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031117583] [2021-11-19 15:04:26,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:26,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:26,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:26,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:26,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:26,677 INFO L87 Difference]: Start difference. First operand 4247 states and 5851 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:27,042 INFO L93 Difference]: Finished difference Result 7056 states and 9747 transitions. [2021-11-19 15:04:27,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:27,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-19 15:04:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:27,050 INFO L225 Difference]: With dead ends: 7056 [2021-11-19 15:04:27,051 INFO L226 Difference]: Without dead ends: 4022 [2021-11-19 15:04:27,056 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 15:04:27,057 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 84 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:27,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 250 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2021-11-19 15:04:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 4020. [2021-11-19 15:04:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4019 states have (on average 1.3749688977357553) internal successors, (5526), 4019 states have internal predecessors, (5526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 5526 transitions. [2021-11-19 15:04:27,525 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 5526 transitions. Word has length 50 [2021-11-19 15:04:27,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:27,525 INFO L470 AbstractCegarLoop]: Abstraction has 4020 states and 5526 transitions. [2021-11-19 15:04:27,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 5526 transitions. [2021-11-19 15:04:27,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-19 15:04:27,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:27,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:27,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-19 15:04:27,528 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:27,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:27,528 INFO L85 PathProgramCache]: Analyzing trace with hash 159710686, now seen corresponding path program 1 times [2021-11-19 15:04:27,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:27,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927795691] [2021-11-19 15:04:27,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:27,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:27,568 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 15:04:27,568 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:27,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927795691] [2021-11-19 15:04:27,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927795691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:27,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:27,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:04:27,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211179999] [2021-11-19 15:04:27,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:27,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:27,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:27,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:27,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:27,570 INFO L87 Difference]: Start difference. First operand 4020 states and 5526 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:27,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:27,980 INFO L93 Difference]: Finished difference Result 7746 states and 10703 transitions. [2021-11-19 15:04:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:27,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-19 15:04:27,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:27,986 INFO L225 Difference]: With dead ends: 7746 [2021-11-19 15:04:27,987 INFO L226 Difference]: Without dead ends: 4931 [2021-11-19 15:04:27,992 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 15:04:27,993 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 81 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:27,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 296 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:27,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4931 states. [2021-11-19 15:04:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4931 to 4587. [2021-11-19 15:04:28,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4587 states, 4586 states have (on average 1.3658962058438726) internal successors, (6264), 4586 states have internal predecessors, (6264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4587 states to 4587 states and 6264 transitions. [2021-11-19 15:04:28,439 INFO L78 Accepts]: Start accepts. Automaton has 4587 states and 6264 transitions. Word has length 55 [2021-11-19 15:04:28,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:28,440 INFO L470 AbstractCegarLoop]: Abstraction has 4587 states and 6264 transitions. [2021-11-19 15:04:28,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand 4587 states and 6264 transitions. [2021-11-19 15:04:28,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 15:04:28,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:28,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:28,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-19 15:04:28,442 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:28,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:28,443 INFO L85 PathProgramCache]: Analyzing trace with hash -719562421, now seen corresponding path program 1 times [2021-11-19 15:04:28,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:28,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938810870] [2021-11-19 15:04:28,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:28,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:28,479 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 15:04:28,480 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:28,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938810870] [2021-11-19 15:04:28,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938810870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:28,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:28,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:04:28,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264440833] [2021-11-19 15:04:28,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:28,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:28,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:28,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:28,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:28,482 INFO L87 Difference]: Start difference. First operand 4587 states and 6264 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:28,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:28,894 INFO L93 Difference]: Finished difference Result 7480 states and 10220 transitions. [2021-11-19 15:04:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:28,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-19 15:04:28,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:28,898 INFO L225 Difference]: With dead ends: 7480 [2021-11-19 15:04:28,898 INFO L226 Difference]: Without dead ends: 3910 [2021-11-19 15:04:28,902 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 15:04:28,903 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 73 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:28,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 302 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:28,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2021-11-19 15:04:29,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3908. [2021-11-19 15:04:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 3907 states have (on average 1.3465574609674942) internal successors, (5261), 3907 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:29,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5261 transitions. [2021-11-19 15:04:29,256 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5261 transitions. Word has length 58 [2021-11-19 15:04:29,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:29,257 INFO L470 AbstractCegarLoop]: Abstraction has 3908 states and 5261 transitions. [2021-11-19 15:04:29,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:29,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5261 transitions. [2021-11-19 15:04:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-19 15:04:29,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:29,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:29,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-19 15:04:29,259 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:29,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:29,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1280172395, now seen corresponding path program 1 times [2021-11-19 15:04:29,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:29,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942218447] [2021-11-19 15:04:29,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:29,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:29,317 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 15:04:29,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:29,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942218447] [2021-11-19 15:04:29,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942218447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:29,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:29,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:04:29,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687718386] [2021-11-19 15:04:29,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:29,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:29,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:29,320 INFO L87 Difference]: Start difference. First operand 3908 states and 5261 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:30,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:30,012 INFO L93 Difference]: Finished difference Result 8560 states and 11601 transitions. [2021-11-19 15:04:30,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:30,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-19 15:04:30,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:30,019 INFO L225 Difference]: With dead ends: 8560 [2021-11-19 15:04:30,019 INFO L226 Difference]: Without dead ends: 5423 [2021-11-19 15:04:30,024 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 15:04:30,024 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 77 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:30,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 278 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:04:30,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2021-11-19 15:04:30,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 4863. [2021-11-19 15:04:30,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4863 states, 4862 states have (on average 1.332167832167832) internal successors, (6477), 4862 states have internal predecessors, (6477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4863 states to 4863 states and 6477 transitions. [2021-11-19 15:04:30,435 INFO L78 Accepts]: Start accepts. Automaton has 4863 states and 6477 transitions. Word has length 58 [2021-11-19 15:04:30,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:30,435 INFO L470 AbstractCegarLoop]: Abstraction has 4863 states and 6477 transitions. [2021-11-19 15:04:30,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:30,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4863 states and 6477 transitions. [2021-11-19 15:04:30,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 15:04:30,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:30,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:30,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-19 15:04:30,438 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:30,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:30,438 INFO L85 PathProgramCache]: Analyzing trace with hash 650989922, now seen corresponding path program 1 times [2021-11-19 15:04:30,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:30,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602953668] [2021-11-19 15:04:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:30,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:30,476 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 15:04:30,477 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:30,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602953668] [2021-11-19 15:04:30,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602953668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:30,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:30,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:04:30,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310716463] [2021-11-19 15:04:30,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:30,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:30,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:30,479 INFO L87 Difference]: Start difference. First operand 4863 states and 6477 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:31,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:31,064 INFO L93 Difference]: Finished difference Result 7206 states and 9601 transitions. [2021-11-19 15:04:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:31,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-19 15:04:31,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:31,070 INFO L225 Difference]: With dead ends: 7206 [2021-11-19 15:04:31,070 INFO L226 Difference]: Without dead ends: 5180 [2021-11-19 15:04:31,073 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 15:04:31,073 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 73 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:31,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 315 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:31,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2021-11-19 15:04:31,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 5178. [2021-11-19 15:04:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5178 states, 5177 states have (on average 1.3196832142167279) internal successors, (6832), 5177 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5178 states to 5178 states and 6832 transitions. [2021-11-19 15:04:31,510 INFO L78 Accepts]: Start accepts. Automaton has 5178 states and 6832 transitions. Word has length 61 [2021-11-19 15:04:31,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:31,510 INFO L470 AbstractCegarLoop]: Abstraction has 5178 states and 6832 transitions. [2021-11-19 15:04:31,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:31,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5178 states and 6832 transitions. [2021-11-19 15:04:31,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 15:04:31,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:31,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:31,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-19 15:04:31,512 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:31,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash 534158658, now seen corresponding path program 1 times [2021-11-19 15:04:31,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:31,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956581377] [2021-11-19 15:04:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:31,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:31,554 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 15:04:31,555 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:31,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956581377] [2021-11-19 15:04:31,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956581377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:31,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:31,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:04:31,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740716311] [2021-11-19 15:04:31,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:31,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:04:31,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:31,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:04:31,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:04:31,557 INFO L87 Difference]: Start difference. First operand 5178 states and 6832 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:32,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:32,417 INFO L93 Difference]: Finished difference Result 12198 states and 16188 transitions. [2021-11-19 15:04:32,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:04:32,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-19 15:04:32,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:32,427 INFO L225 Difference]: With dead ends: 12198 [2021-11-19 15:04:32,427 INFO L226 Difference]: Without dead ends: 7410 [2021-11-19 15:04:32,431 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 15:04:32,432 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 72 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:32,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 259 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:04:32,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7410 states. [2021-11-19 15:04:33,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7410 to 6760. [2021-11-19 15:04:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6760 states, 6759 states have (on average 1.3065542239976329) internal successors, (8831), 6759 states have internal predecessors, (8831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6760 states to 6760 states and 8831 transitions. [2021-11-19 15:04:33,028 INFO L78 Accepts]: Start accepts. Automaton has 6760 states and 8831 transitions. Word has length 61 [2021-11-19 15:04:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:33,028 INFO L470 AbstractCegarLoop]: Abstraction has 6760 states and 8831 transitions. [2021-11-19 15:04:33,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:33,029 INFO L276 IsEmpty]: Start isEmpty. Operand 6760 states and 8831 transitions. [2021-11-19 15:04:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 15:04:33,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:33,031 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, 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 15:04:33,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-19 15:04:33,031 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:33,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1503671052, now seen corresponding path program 1 times [2021-11-19 15:04:33,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:33,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604020058] [2021-11-19 15:04:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:33,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:33,112 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 15:04:33,112 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:33,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604020058] [2021-11-19 15:04:33,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604020058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:33,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:33,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 15:04:33,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531380639] [2021-11-19 15:04:33,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:33,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:04:33,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:33,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:04:33,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:04:33,114 INFO L87 Difference]: Start difference. First operand 6760 states and 8831 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:34,571 INFO L93 Difference]: Finished difference Result 9279 states and 12089 transitions. [2021-11-19 15:04:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 15:04:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-19 15:04:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:34,587 INFO L225 Difference]: With dead ends: 9279 [2021-11-19 15:04:34,587 INFO L226 Difference]: Without dead ends: 9277 [2021-11-19 15:04:34,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 15:04:34,591 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 337 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:34,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 740 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:04:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2021-11-19 15:04:35,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 8135. [2021-11-19 15:04:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8135 states, 8134 states have (on average 1.3026801081878534) internal successors, (10596), 8134 states have internal predecessors, (10596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:35,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8135 states to 8135 states and 10596 transitions. [2021-11-19 15:04:35,530 INFO L78 Accepts]: Start accepts. Automaton has 8135 states and 10596 transitions. Word has length 66 [2021-11-19 15:04:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:35,531 INFO L470 AbstractCegarLoop]: Abstraction has 8135 states and 10596 transitions. [2021-11-19 15:04:35,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 8135 states and 10596 transitions. [2021-11-19 15:04:35,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 15:04:35,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:35,534 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:35,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-19 15:04:35,535 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:35,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:35,535 INFO L85 PathProgramCache]: Analyzing trace with hash 595690169, now seen corresponding path program 1 times [2021-11-19 15:04:35,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:35,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838026317] [2021-11-19 15:04:35,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:35,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 15:04:35,627 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:35,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838026317] [2021-11-19 15:04:35,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838026317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:35,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:35,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 15:04:35,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167600468] [2021-11-19 15:04:35,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:35,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:04:35,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:35,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:04:35,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:04:35,629 INFO L87 Difference]: Start difference. First operand 8135 states and 10596 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:37,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:37,484 INFO L93 Difference]: Finished difference Result 19668 states and 25697 transitions. [2021-11-19 15:04:37,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:04:37,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-19 15:04:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:37,499 INFO L225 Difference]: With dead ends: 19668 [2021-11-19 15:04:37,499 INFO L226 Difference]: Without dead ends: 12264 [2021-11-19 15:04:37,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:04:37,509 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 911 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:37,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [911 Valid, 227 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:04:37,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12264 states. [2021-11-19 15:04:38,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12264 to 10460. [2021-11-19 15:04:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10460 states, 10459 states have (on average 1.284635242374988) internal successors, (13436), 10459 states have internal predecessors, (13436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10460 states to 10460 states and 13436 transitions. [2021-11-19 15:04:38,684 INFO L78 Accepts]: Start accepts. Automaton has 10460 states and 13436 transitions. Word has length 76 [2021-11-19 15:04:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:38,685 INFO L470 AbstractCegarLoop]: Abstraction has 10460 states and 13436 transitions. [2021-11-19 15:04:38,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 10460 states and 13436 transitions. [2021-11-19 15:04:38,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 15:04:38,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:38,688 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:38,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-19 15:04:38,689 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:38,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:38,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2081772236, now seen corresponding path program 1 times [2021-11-19 15:04:38,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:38,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037093737] [2021-11-19 15:04:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:38,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:04:39,502 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:39,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037093737] [2021-11-19 15:04:39,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037093737] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:04:39,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896041284] [2021-11-19 15:04:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:39,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:04:39,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:04:39,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:04:39,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 15:04:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:39,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-19 15:04:39,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:04:42,006 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 15:04:42,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:04:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 15:04:43,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896041284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:43,738 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:04:43,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 11] imperfect sequences [23] total 47 [2021-11-19 15:04:43,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374012897] [2021-11-19 15:04:43,739 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:43,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-19 15:04:43,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:43,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-19 15:04:43,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=2013, Unknown=0, NotChecked=0, Total=2256 [2021-11-19 15:04:43,741 INFO L87 Difference]: Start difference. First operand 10460 states and 13436 transitions. Second operand has 26 states, 26 states have (on average 4.961538461538462) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:53,761 INFO L93 Difference]: Finished difference Result 35597 states and 46084 transitions. [2021-11-19 15:04:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-19 15:04:53,763 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.961538461538462) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-19 15:04:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:53,809 INFO L225 Difference]: With dead ends: 35597 [2021-11-19 15:04:53,809 INFO L226 Difference]: Without dead ends: 27556 [2021-11-19 15:04:53,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1027, Invalid=5615, Unknown=0, NotChecked=0, Total=6642 [2021-11-19 15:04:53,824 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 3145 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:53,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3145 Valid, 2201 Invalid, 2569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-19 15:04:53,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27556 states. [2021-11-19 15:04:55,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27556 to 11042. [2021-11-19 15:04:55,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11042 states, 11041 states have (on average 1.2816773842949007) internal successors, (14151), 11041 states have internal predecessors, (14151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:55,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11042 states to 11042 states and 14151 transitions. [2021-11-19 15:04:55,676 INFO L78 Accepts]: Start accepts. Automaton has 11042 states and 14151 transitions. Word has length 76 [2021-11-19 15:04:55,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:04:55,677 INFO L470 AbstractCegarLoop]: Abstraction has 11042 states and 14151 transitions. [2021-11-19 15:04:55,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.961538461538462) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 11042 states and 14151 transitions. [2021-11-19 15:04:55,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 15:04:55,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:04:55,681 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:04:55,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:04:55,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:04:55,896 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:04:55,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:04:55,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1885539911, now seen corresponding path program 1 times [2021-11-19 15:04:55,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:04:55,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469692821] [2021-11-19 15:04:55,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:04:55,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:04:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:04:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 15:04:56,019 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:04:56,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469692821] [2021-11-19 15:04:56,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469692821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:04:56,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:04:56,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 15:04:56,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915380889] [2021-11-19 15:04:56,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:04:56,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 15:04:56,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:04:56,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 15:04:56,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:04:56,021 INFO L87 Difference]: Start difference. First operand 11042 states and 14151 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:04:59,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:04:59,671 INFO L93 Difference]: Finished difference Result 26804 states and 34587 transitions. [2021-11-19 15:04:59,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:04:59,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-19 15:04:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:04:59,704 INFO L225 Difference]: With dead ends: 26804 [2021-11-19 15:04:59,705 INFO L226 Difference]: Without dead ends: 18891 [2021-11-19 15:04:59,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:04:59,715 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 1021 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:04:59,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 225 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:04:59,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18891 states. [2021-11-19 15:05:02,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18891 to 14357. [2021-11-19 15:05:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14357 states, 14356 states have (on average 1.271175814990248) internal successors, (18249), 14356 states have internal predecessors, (18249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:02,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14357 states to 14357 states and 18249 transitions. [2021-11-19 15:05:02,181 INFO L78 Accepts]: Start accepts. Automaton has 14357 states and 18249 transitions. Word has length 76 [2021-11-19 15:05:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:02,181 INFO L470 AbstractCegarLoop]: Abstraction has 14357 states and 18249 transitions. [2021-11-19 15:05:02,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 14357 states and 18249 transitions. [2021-11-19 15:05:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 15:05:02,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:02,185 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:02,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-19 15:05:02,185 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:05:02,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:02,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1763027852, now seen corresponding path program 1 times [2021-11-19 15:05:02,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:05:02,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081638172] [2021-11-19 15:05:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:02,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:05:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:02,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 15:05:02,576 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:05:02,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081638172] [2021-11-19 15:05:02,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081638172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:05:02,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:05:02,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-19 15:05:02,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950144146] [2021-11-19 15:05:02,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:05:02,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 15:05:02,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:05:02,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 15:05:02,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-19 15:05:02,578 INFO L87 Difference]: Start difference. First operand 14357 states and 18249 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:08,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:05:08,186 INFO L93 Difference]: Finished difference Result 30298 states and 38590 transitions. [2021-11-19 15:05:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 15:05:08,187 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-19 15:05:08,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:05:08,214 INFO L225 Difference]: With dead ends: 30298 [2021-11-19 15:05:08,214 INFO L226 Difference]: Without dead ends: 20394 [2021-11-19 15:05:08,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:05:08,227 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 737 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:05:08,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [737 Valid, 969 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 15:05:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20394 states. [2021-11-19 15:05:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20394 to 14336. [2021-11-19 15:05:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14336 states, 14335 states have (on average 1.2724101848622253) internal successors, (18240), 14335 states have internal predecessors, (18240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14336 states to 14336 states and 18240 transitions. [2021-11-19 15:05:11,287 INFO L78 Accepts]: Start accepts. Automaton has 14336 states and 18240 transitions. Word has length 76 [2021-11-19 15:05:11,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:05:11,288 INFO L470 AbstractCegarLoop]: Abstraction has 14336 states and 18240 transitions. [2021-11-19 15:05:11,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:05:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 14336 states and 18240 transitions. [2021-11-19 15:05:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 15:05:11,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:05:11,291 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:05:11,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-19 15:05:11,291 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:05:11,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:05:11,292 INFO L85 PathProgramCache]: Analyzing trace with hash 770436240, now seen corresponding path program 1 times [2021-11-19 15:05:11,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:05:11,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001533563] [2021-11-19 15:05:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:11,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:05:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:05:12,279 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:05:12,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001533563] [2021-11-19 15:05:12,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001533563] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 15:05:12,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738863432] [2021-11-19 15:05:12,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:05:12,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:05:12,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:05:12,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:05:12,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d60d96e-44c2-4240-93a9-4466fd16d48a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 15:05:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:05:12,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 110 conjunts are in the unsatisfiable core [2021-11-19 15:05:12,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:05:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:05:18,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:11:24,485 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:11:24,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738863432] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:11:24,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1573578339] [2021-11-19 15:11:24,505 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2021-11-19 15:11:24,505 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 15:11:24,510 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 15:11:24,517 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 15:11:24,517 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 15:11:24,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:24,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 15:11:24,689 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:24,690 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,690 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-19 15:11:24,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-11-19 15:11:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:11:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:11:24,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:11:24,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-19 15:11:24,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 15:11:24,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 15:11:24,744 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:11:24,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:24,767 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:11:24,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:11:24,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-19 15:11:24,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 15:11:24,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-19 15:11:24,781 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 15:11:24,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:24,796 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,807 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-19 15:11:24,808 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 15:11:24,808 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:223, output treesize:229 [2021-11-19 15:11:24,869 INFO L180 QuantifierPusher]: treesize reduction 45, result has 85.4 percent of original size [2021-11-19 15:11:24,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-11-19 15:11:24,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-11-19 15:11:24,924 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.9 percent of original size [2021-11-19 15:11:24,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 272 [2021-11-19 15:11:24,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-11-19 15:11:24,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:24,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 314 [2021-11-19 15:11:25,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 312 [2021-11-19 15:11:25,036 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.1 percent of original size [2021-11-19 15:11:25,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 340 [2021-11-19 15:11:25,061 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 353 [2021-11-19 15:11:25,094 INFO L180 QuantifierPusher]: treesize reduction 5, result has 99.0 percent of original size [2021-11-19 15:11:25,115 INFO L185 QuantifierPusher]: treesize reduction 5, result has 98.8 percent of original size 416 [2021-11-19 15:11:25,132 INFO L180 QuantifierPusher]: treesize reduction 5, result has 99.0 percent of original size [2021-11-19 15:11:25,148 INFO L185 QuantifierPusher]: treesize reduction 8, result has 98.3 percent of original size 471 [2021-11-19 15:11:25,169 INFO L180 QuantifierPusher]: treesize reduction 8, result has 98.6 percent of original size [2021-11-19 15:11:25,197 INFO L185 QuantifierPusher]: treesize reduction 5, result has 99.1 percent of original size 528 [2021-11-19 15:11:25,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:25,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:25,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:25,679 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size [2021-11-19 15:11:25,702 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 350 [2021-11-19 15:11:25,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-11-19 15:11:25,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,811 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 372 [2021-11-19 15:11:25,829 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 369 [2021-11-19 15:11:25,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,873 INFO L185 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size 369 [2021-11-19 15:11:25,893 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size [2021-11-19 15:11:25,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 374 [2021-11-19 15:11:25,924 INFO L180 QuantifierPusher]: treesize reduction 3, result has 99.3 percent of original size [2021-11-19 15:11:25,928 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:25,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,930 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:25,932 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,933 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:25,934 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,935 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:25,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-19 15:11:25,941 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 15:11:25,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-19 15:11:25,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-19 15:11:25,946 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:25,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:25,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,952 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:25,953 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,954 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:25,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:25,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:11:25,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-19 15:11:25,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-19 15:11:25,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-19 15:11:25,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:25,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:26,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:26,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:26,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:26,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 783 [2021-11-19 15:11:26,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,423 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 584 [2021-11-19 15:11:26,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 772 [2021-11-19 15:11:26,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,535 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,593 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,596 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,599 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,600 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,602 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,603 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:11:26,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 15:11:26,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 15:11:26,609 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-19 15:11:26,626 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 814 [2021-11-19 15:11:26,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 814 [2021-11-19 15:11:26,643 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,677 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,693 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,696 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,700 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,704 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-19 15:11:26,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-19 15:11:26,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-11-19 15:11:26,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 820 [2021-11-19 15:11:26,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 820 [2021-11-19 15:11:26,749 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,785 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 822 [2021-11-19 15:11:26,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 822 [2021-11-19 15:11:26,845 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,858 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:26,859 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:26,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,884 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,903 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,934 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 552 [2021-11-19 15:11:26,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-11-19 15:11:26,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:26,972 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:26,975 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:26,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:26,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:26,995 INFO L185 QuantifierPusher]: treesize reduction 24, result has 95.1 percent of original size 467 [2021-11-19 15:11:27,019 INFO L180 QuantifierPusher]: treesize reduction 24, result has 95.3 percent of original size [2021-11-19 15:11:27,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 480 [2021-11-19 15:11:27,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 485 [2021-11-19 15:11:27,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,103 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,107 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,115 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,119 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,124 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,126 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,127 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,133 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,134 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,136 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 15:11:27,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-19 15:11:27,139 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,142 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 15:11:27,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 15:11:27,143 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-19 15:11:27,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-19 15:11:27,146 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:11:27,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-11-19 15:11:27,151 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,153 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 15:11:27,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-19 15:11:27,158 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-11-19 15:11:27,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-19 15:11:27,165 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,167 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-11-19 15:11:27,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-19 15:11:27,170 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,172 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-11-19 15:11:27,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-11-19 15:11:27,176 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,180 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,184 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,186 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:11:27,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-19 15:11:27,202 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 15:11:27,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-19 15:11:27,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-11-19 15:11:27,222 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,229 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,236 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,244 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,249 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-11-19 15:11:27,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-19 15:11:27,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-19 15:11:27,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 590 [2021-11-19 15:11:27,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 759 [2021-11-19 15:11:27,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1169 [2021-11-19 15:11:27,317 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,339 INFO L185 QuantifierPusher]: treesize reduction -29, result has 102.5 percent of original size 1198 [2021-11-19 15:11:27,362 INFO L180 QuantifierPusher]: treesize reduction -29, result has 102.5 percent of original size [2021-11-19 15:11:27,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1188 [2021-11-19 15:11:27,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:27,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,442 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,454 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,457 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,460 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,463 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:11:27,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 15:11:27,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 15:11:27,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-19 15:11:27,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-19 15:11:27,477 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,487 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,493 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,505 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:11:27,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 15:11:27,510 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 15:11:27,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-19 15:11:27,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-19 15:11:27,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,521 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,525 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,528 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:11:27,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 15:11:27,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-19 15:11:27,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-11-19 15:11:27,540 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,546 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,549 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,552 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:11:27,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 15:11:27,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 15:11:27,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-19 15:11:27,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-19 15:11:27,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 387 [2021-11-19 15:11:27,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 590 [2021-11-19 15:11:27,570 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,573 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,575 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,578 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,581 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:27,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:27,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:11:27,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 15:11:27,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 15:11:27,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-11-19 15:11:27,588 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-19 15:11:27,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 797 [2021-11-19 15:11:27,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1000 [2021-11-19 15:11:27,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1382 [2021-11-19 15:11:27,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:27,998 INFO L180 QuantifierPusher]: treesize reduction 36, result has 91.7 percent of original size [2021-11-19 15:11:28,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-11-19 15:11:28,031 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,044 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 394 [2021-11-19 15:11:28,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-19 15:11:28,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:28,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,114 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,117 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,118 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,119 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,120 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,121 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-19 15:11:28,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-19 15:11:28,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-19 15:11:28,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-11-19 15:11:28,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-11-19 15:11:28,131 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,142 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,143 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-19 15:11:28,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:11:28,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 15:11:28,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2021-11-19 15:11:28,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,345 INFO L180 QuantifierPusher]: treesize reduction 36, result has 93.0 percent of original size [2021-11-19 15:11:28,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-11-19 15:11:28,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 424 [2021-11-19 15:11:28,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 429 [2021-11-19 15:11:28,436 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,438 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-19 15:11:28,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,445 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,450 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,454 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,457 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,460 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,462 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 15:11:28,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 15:11:28,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 15:11:28,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-11-19 15:11:28,471 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,477 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,480 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,481 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,483 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,486 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,489 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 15:11:28,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-19 15:11:28,491 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 15:11:28,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-19 15:11:28,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-19 15:11:28,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-19 15:11:28,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-19 15:11:28,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-19 15:11:28,503 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-19 15:11:28,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-19 15:11:28,507 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-11-19 15:11:28,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-11-19 15:11:28,512 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-11-19 15:11:28,516 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,517 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,519 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,522 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,523 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,524 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 15:11:28,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-19 15:11:28,529 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-19 15:11:28,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-19 15:11:28,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-19 15:11:28,533 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-11-19 15:11:28,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-11-19 15:11:28,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,540 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-11-19 15:11:28,561 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,562 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,563 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 15:11:28,571 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,571 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-19 15:11:28,584 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-19 15:11:28,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 15:11:28,586 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 15:11:28,590 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,597 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,603 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,609 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,615 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,621 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,624 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,626 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,626 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-11-19 15:11:28,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-19 15:11:28,628 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,629 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,629 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 15:11:28,631 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-19 15:11:28,632 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-11-19 15:11:28,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 314 [2021-11-19 15:11:28,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-11-19 15:11:28,642 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 330 [2021-11-19 15:11:28,642 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-11-19 15:11:28,649 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 350 [2021-11-19 15:11:28,649 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,651 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,652 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-19 15:11:28,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-11-19 15:11:28,657 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-19 15:11:28,662 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,665 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,668 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 15:11:28,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-19 15:11:28,679 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-19 15:11:28,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-19 15:11:28,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 424 [2021-11-19 15:11:28,685 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:28,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-11-19 15:11:28,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:11:28,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:28,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1169 [2021-11-19 15:11:28,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:28,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,223 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.4 percent of original size [2021-11-19 15:11:29,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-11-19 15:11:29,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,255 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:29,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,257 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:29,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,261 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:29,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,264 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:29,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,266 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:29,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-19 15:11:29,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-11-19 15:11:29,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-19 15:11:29,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-11-19 15:11:29,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-11-19 15:11:29,275 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:29,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,278 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:29,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,280 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:29,281 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-19 15:11:29,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:11:29,286 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 15:11:29,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 435 [2021-11-19 15:11:29,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:29,336 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-11-19 15:11:29,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:29,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,314 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.6 percent of original size [2021-11-19 15:11:30,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 404 [2021-11-19 15:11:30,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:30,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 401 [2021-11-19 15:11:30,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:30,707 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:30,758 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:30,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:30,781 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:30,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:30,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 757 [2021-11-19 15:11:30,863 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:30,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:30,935 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:30,957 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,008 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1515 [2021-11-19 15:11:31,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2273 [2021-11-19 15:11:31,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3035 [2021-11-19 15:11:31,261 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3802 [2021-11-19 15:11:31,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3802 [2021-11-19 15:11:31,369 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,433 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 737 [2021-11-19 15:11:31,500 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,574 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,605 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,627 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,648 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,660 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,671 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 725 [2021-11-19 15:11:31,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 737 [2021-11-19 15:11:31,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1475 [2021-11-19 15:11:31,832 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,874 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 725 [2021-11-19 15:11:31,931 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2213 [2021-11-19 15:11:31,953 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:11:31,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:31,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 725 [2021-11-19 15:11:32,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2955 [2021-11-19 15:11:32,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3702 [2021-11-19 15:11:32,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3712 [2021-11-19 15:11:32,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:32,883 INFO L180 QuantifierPusher]: treesize reduction 6, result has 98.7 percent of original size [2021-11-19 15:11:32,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 395 [2021-11-19 15:11:32,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:32,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 414 [2021-11-19 15:11:32,922 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:11:32,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 425 [2021-11-19 15:11:33,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:33,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:33,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:11:33,085 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 15:12:24,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 15:12:24,612 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:12:24,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 30, 30] total 80 [2021-11-19 15:12:24,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336319265] [2021-11-19 15:12:24,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 15:12:24,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2021-11-19 15:12:24,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:12:24,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-11-19 15:12:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2760, Invalid=15600, Unknown=0, NotChecked=0, Total=18360 [2021-11-19 15:12:24,619 INFO L87 Difference]: Start difference. First operand 14336 states and 18240 transitions. Second operand has 80 states, 80 states have (on average 2.825) internal successors, (226), 80 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 15:13:30,624 WARN L227 SmtUtils]: Spent 17.21s on a formula simplification. DAG size of input: 814 DAG size of output: 674 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:13:58,215 WARN L227 SmtUtils]: Spent 19.57s on a formula simplification. DAG size of input: 1062 DAG size of output: 907 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:14:22,041 WARN L227 SmtUtils]: Spent 23.10s on a formula simplification. DAG size of input: 962 DAG size of output: 798 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:14:41,205 WARN L227 SmtUtils]: Spent 7.86s on a formula simplification. DAG size of input: 647 DAG size of output: 534 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:14:55,547 WARN L227 SmtUtils]: Spent 13.84s on a formula simplification. DAG size of input: 782 DAG size of output: 651 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:15:07,056 WARN L227 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 780 DAG size of output: 664 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:15:29,827 WARN L227 SmtUtils]: Spent 22.02s on a formula simplification. DAG size of input: 927 DAG size of output: 772 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:15:47,377 WARN L227 SmtUtils]: Spent 16.94s on a formula simplification. DAG size of input: 777 DAG size of output: 646 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:16:39,506 WARN L227 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 648 DAG size of output: 535 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)