./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF --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 056b77142139934f04c5cd96553e37eaed588abf60608a3beeeec0aa5c00ccfe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:05:49,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:05:49,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:05:49,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:05:49,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:05:49,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:05:49,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:05:49,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:05:49,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:05:49,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:05:49,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:05:49,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:05:49,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:05:49,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:05:49,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:05:49,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:05:49,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:05:49,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:05:49,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:05:49,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:05:49,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:05:49,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:05:49,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:05:49,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:05:49,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:05:49,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:05:49,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:05:49,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:05:49,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:05:49,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:05:49,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:05:49,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:05:49,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:05:49,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:05:49,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:05:49,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:05:49,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:05:49,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:05:49,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:05:49,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:05:49,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:05:49,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:05:49,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:05:49,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:05:49,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:05:49,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:05:49,606 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:05:49,607 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:05:49,607 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:05:49,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:05:49,611 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:05:49,611 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:05:49,612 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:05:49,612 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:05:49,612 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:05:49,612 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:05:49,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:05:49,613 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:05:49,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:05:49,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:05:49,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:05:49,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:05:49,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:05:49,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:05:49,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:05:49,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:05:49,615 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:05:49,615 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:05:49,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:05:49,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:05:49,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:05:49,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:05:49,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:05:49,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:49,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:05:49,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:05:49,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:05:49,619 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:05:49,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:05:49,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:05:49,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:05:49,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:05:49,620 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_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 056b77142139934f04c5cd96553e37eaed588abf60608a3beeeec0aa5c00ccfe [2021-11-12 23:05:49,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:05:49,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:05:49,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:05:49,932 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:05:49,933 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:05:49,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c [2021-11-12 23:05:50,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/data/551cfe8d0/bc61ec3120cf49ee94422ee141ae9ab2/FLAG488ca3cf2 [2021-11-12 23:05:51,153 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:05:51,155 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c [2021-11-12 23:05:51,212 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/data/551cfe8d0/bc61ec3120cf49ee94422ee141ae9ab2/FLAG488ca3cf2 [2021-11-12 23:05:51,406 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/data/551cfe8d0/bc61ec3120cf49ee94422ee141ae9ab2 [2021-11-12 23:05:51,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:05:51,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:05:51,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:51,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:05:51,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:05:51,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:51" (1/1) ... [2021-11-12 23:05:51,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c80d881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:51, skipping insertion in model container [2021-11-12 23:05:51,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:05:51" (1/1) ... [2021-11-12 23:05:51,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:05:51,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:05:54,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c[377612,377625] [2021-11-12 23:05:54,135 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c[383339,383352] [2021-11-12 23:05:54,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:54,389 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:05:55,663 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c[377612,377625] [2021-11-12 23:05:55,673 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c[383339,383352] [2021-11-12 23:05:55,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:05:55,770 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:05:55,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55 WrapperNode [2021-11-12 23:05:55,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:05:55,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:05:55,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:05:55,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:05:55,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:55,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:56,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:05:56,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:05:56,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:05:56,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:05:56,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:56,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:56,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:56,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:56,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:56,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:56,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:57,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:05:57,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:05:57,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:05:57,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:05:57,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (1/1) ... [2021-11-12 23:05:57,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:05:57,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:05:57,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:05:57,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:05:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:05:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-12 23:05:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-12 23:05:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-12 23:05:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-12 23:05:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-12 23:05:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-12 23:05:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-12 23:05:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-12 23:05:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-12 23:05:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-12 23:05:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-12 23:05:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-12 23:05:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:05:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:05:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:06:07,101 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:06:07,102 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-12 23:06:07,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:07 BoogieIcfgContainer [2021-11-12 23:06:07,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:06:07,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:06:07,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:06:07,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:06:07,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:05:51" (1/3) ... [2021-11-12 23:06:07,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763dec6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:07, skipping insertion in model container [2021-11-12 23:06:07,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:05:55" (2/3) ... [2021-11-12 23:06:07,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763dec6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:06:07, skipping insertion in model container [2021-11-12 23:06:07,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:06:07" (3/3) ... [2021-11-12 23:06:07,117 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.04.cil-1.c [2021-11-12 23:06:07,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:06:07,123 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-12 23:06:07,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:06:07,188 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 [2021-11-12 23:06:07,188 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-12 23:06:07,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 1743 states, 1716 states have (on average 1.9726107226107226) internal successors, (3385), 1719 states have internal predecessors, (3385), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-12 23:06:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-12 23:06:07,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:07,291 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] [2021-11-12 23:06:07,292 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:07,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1357924263, now seen corresponding path program 1 times [2021-11-12 23:06:07,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:07,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546402487] [2021-11-12 23:06:07,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:07,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:06:07,697 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:07,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546402487] [2021-11-12 23:06:07,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546402487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:07,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:07,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:06:07,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128329073] [2021-11-12 23:06:07,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:07,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:07,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:07,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:07,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:06:07,758 INFO L87 Difference]: Start difference. First operand has 1743 states, 1716 states have (on average 1.9726107226107226) internal successors, (3385), 1719 states have internal predecessors, (3385), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 23:06:08,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:08,647 INFO L93 Difference]: Finished difference Result 3569 states and 6979 transitions. [2021-11-12 23:06:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:06:08,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2021-11-12 23:06:08,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:08,681 INFO L225 Difference]: With dead ends: 3569 [2021-11-12 23:06:08,681 INFO L226 Difference]: Without dead ends: 1825 [2021-11-12 23:06:08,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:06:08,699 INFO L933 BasicCegarLoop]: 3271 mSDtfsCounter, 3515 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 476.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3515 SdHoareTripleChecker+Valid, 6476 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.84ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 637.36ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:08,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3515 Valid, 6476 Invalid, 612 Unknown, 0 Unchecked, 46.84ms Time], IncrementalHoareTripleChecker [14 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 637.36ms Time] [2021-11-12 23:06:08,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2021-11-12 23:06:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1824. [2021-11-12 23:06:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1778 states have (on average 1.9482564679415073) internal successors, (3464), 1781 states have internal predecessors, (3464), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-12 23:06:08,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 3528 transitions. [2021-11-12 23:06:08,875 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 3528 transitions. Word has length 43 [2021-11-12 23:06:08,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:08,876 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 3528 transitions. [2021-11-12 23:06:08,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-12 23:06:08,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 3528 transitions. [2021-11-12 23:06:08,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-12 23:06:08,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:08,883 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:08,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:06:08,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:08,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:08,885 INFO L85 PathProgramCache]: Analyzing trace with hash 293866243, now seen corresponding path program 1 times [2021-11-12 23:06:08,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:08,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353777114] [2021-11-12 23:06:08,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:08,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-12 23:06:09,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:09,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353777114] [2021-11-12 23:06:09,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353777114] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:09,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874092790] [2021-11-12 23:06:09,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:09,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:09,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:09,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:06:09,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 23:06:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:09,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:09,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-12 23:06:09,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 23:06:09,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874092790] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:09,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:06:09,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 4] total 7 [2021-11-12 23:06:09,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531648443] [2021-11-12 23:06:09,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:09,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:06:09,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:09,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:06:09,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:09,677 INFO L87 Difference]: Start difference. First operand 1824 states and 3528 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-12 23:06:10,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:10,092 INFO L93 Difference]: Finished difference Result 2173 states and 4035 transitions. [2021-11-12 23:06:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:06:10,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2021-11-12 23:06:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:10,109 INFO L225 Difference]: With dead ends: 2173 [2021-11-12 23:06:10,109 INFO L226 Difference]: Without dead ends: 1995 [2021-11-12 23:06:10,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:10,115 INFO L933 BasicCegarLoop]: 3207 mSDtfsCounter, 3384 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 273.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.41ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 329.88ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:10,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3384 Valid, 3312 Invalid, 270 Unknown, 0 Unchecked, 12.41ms Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 329.88ms Time] [2021-11-12 23:06:10,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2021-11-12 23:06:10,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1991. [2021-11-12 23:06:10,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1907 states have (on average 1.9113791295228106) internal successors, (3645), 1911 states have internal predecessors, (3645), 58 states have call successors, (58), 24 states have call predecessors, (58), 24 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2021-11-12 23:06:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 3761 transitions. [2021-11-12 23:06:10,214 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 3761 transitions. Word has length 80 [2021-11-12 23:06:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:10,215 INFO L470 AbstractCegarLoop]: Abstraction has 1991 states and 3761 transitions. [2021-11-12 23:06:10,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-12 23:06:10,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 3761 transitions. [2021-11-12 23:06:10,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-12 23:06:10,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:10,228 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:10,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:10,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:10,443 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:10,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:10,444 INFO L85 PathProgramCache]: Analyzing trace with hash 813650659, now seen corresponding path program 1 times [2021-11-12 23:06:10,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:10,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028714027] [2021-11-12 23:06:10,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:10,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-12 23:06:10,566 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:10,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028714027] [2021-11-12 23:06:10,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028714027] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:10,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196842222] [2021-11-12 23:06:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:10,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:10,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:10,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:06:10,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 23:06:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:10,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:10,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:06:10,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-12 23:06:11,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196842222] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:11,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:06:11,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 4] total 7 [2021-11-12 23:06:11,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811154972] [2021-11-12 23:06:11,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:11,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:06:11,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:11,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:06:11,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:11,117 INFO L87 Difference]: Start difference. First operand 1991 states and 3761 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-12 23:06:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:11,689 INFO L93 Difference]: Finished difference Result 2668 states and 4736 transitions. [2021-11-12 23:06:11,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:06:11,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2021-11-12 23:06:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:11,706 INFO L225 Difference]: With dead ends: 2668 [2021-11-12 23:06:11,706 INFO L226 Difference]: Without dead ends: 2323 [2021-11-12 23:06:11,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:11,709 INFO L933 BasicCegarLoop]: 3182 mSDtfsCounter, 3381 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 409.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3381 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.34ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 475.57ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:11,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3381 Valid, 3287 Invalid, 267 Unknown, 0 Unchecked, 12.34ms Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 475.57ms Time] [2021-11-12 23:06:11,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2021-11-12 23:06:11,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2317. [2021-11-12 23:06:11,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2159 states have (on average 1.8503937007874016) internal successors, (3995), 2165 states have internal predecessors, (3995), 108 states have call successors, (108), 48 states have call predecessors, (108), 48 states have return successors, (108), 104 states have call predecessors, (108), 108 states have call successors, (108) [2021-11-12 23:06:11,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 4211 transitions. [2021-11-12 23:06:11,797 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 4211 transitions. Word has length 80 [2021-11-12 23:06:11,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:11,798 INFO L470 AbstractCegarLoop]: Abstraction has 2317 states and 4211 transitions. [2021-11-12 23:06:11,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-12 23:06:11,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 4211 transitions. [2021-11-12 23:06:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-12 23:06:11,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:11,802 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:11,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:12,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:12,027 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:12,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1529616131, now seen corresponding path program 1 times [2021-11-12 23:06:12,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:12,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130392631] [2021-11-12 23:06:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:12,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 23:06:12,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:12,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130392631] [2021-11-12 23:06:12,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130392631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:12,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:12,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:06:12,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729737912] [2021-11-12 23:06:12,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:12,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:06:12,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:12,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:06:12,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:06:12,128 INFO L87 Difference]: Start difference. First operand 2317 states and 4211 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 23:06:12,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:12,603 INFO L93 Difference]: Finished difference Result 2839 states and 4960 transitions. [2021-11-12 23:06:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:06:12,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2021-11-12 23:06:12,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:12,625 INFO L225 Difference]: With dead ends: 2839 [2021-11-12 23:06:12,625 INFO L226 Difference]: Without dead ends: 2493 [2021-11-12 23:06:12,630 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 [2021-11-12 23:06:12,632 INFO L933 BasicCegarLoop]: 3228 mSDtfsCounter, 55 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 317.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 6402 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 383.82ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:12,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 6402 Invalid, 488 Unknown, 0 Unchecked, 11.57ms Time], IncrementalHoareTripleChecker [0 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 383.82ms Time] [2021-11-12 23:06:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2021-11-12 23:06:12,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2421. [2021-11-12 23:06:12,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2255 states have (on average 1.8425720620842572) internal successors, (4155), 2261 states have internal predecessors, (4155), 112 states have call successors, (112), 52 states have call predecessors, (112), 52 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-12 23:06:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4379 transitions. [2021-11-12 23:06:12,726 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4379 transitions. Word has length 80 [2021-11-12 23:06:12,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:12,727 INFO L470 AbstractCegarLoop]: Abstraction has 2421 states and 4379 transitions. [2021-11-12 23:06:12,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 23:06:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4379 transitions. [2021-11-12 23:06:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 23:06:12,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:12,731 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:12,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:06:12,732 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:12,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1709257233, now seen corresponding path program 1 times [2021-11-12 23:06:12,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:12,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231320841] [2021-11-12 23:06:12,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:12,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-12 23:06:12,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:12,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231320841] [2021-11-12 23:06:12,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231320841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:12,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:12,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:06:12,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479211341] [2021-11-12 23:06:12,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:12,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:06:12,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:06:12,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:06:12,821 INFO L87 Difference]: Start difference. First operand 2421 states and 4379 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:06:13,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:13,280 INFO L93 Difference]: Finished difference Result 3934 states and 6568 transitions. [2021-11-12 23:06:13,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:06:13,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 106 [2021-11-12 23:06:13,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:13,303 INFO L225 Difference]: With dead ends: 3934 [2021-11-12 23:06:13,303 INFO L226 Difference]: Without dead ends: 3159 [2021-11-12 23:06:13,307 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 [2021-11-12 23:06:13,310 INFO L933 BasicCegarLoop]: 3189 mSDtfsCounter, 3375 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 278.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3375 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.62ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 333.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:13,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3375 Valid, 3294 Invalid, 265 Unknown, 0 Unchecked, 11.62ms Time], IncrementalHoareTripleChecker [2 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 333.66ms Time] [2021-11-12 23:06:13,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-11-12 23:06:13,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3145. [2021-11-12 23:06:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 2827 states have (on average 1.7541563494870889) internal successors, (4959), 2837 states have internal predecessors, (4959), 212 states have call successors, (212), 104 states have call predecessors, (212), 104 states have return successors, (212), 204 states have call predecessors, (212), 212 states have call successors, (212) [2021-11-12 23:06:13,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 5383 transitions. [2021-11-12 23:06:13,457 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 5383 transitions. Word has length 106 [2021-11-12 23:06:13,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:13,459 INFO L470 AbstractCegarLoop]: Abstraction has 3145 states and 5383 transitions. [2021-11-12 23:06:13,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:06:13,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 5383 transitions. [2021-11-12 23:06:13,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 23:06:13,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:13,473 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:13,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 23:06:13,474 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:13,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:13,474 INFO L85 PathProgramCache]: Analyzing trace with hash 692324202, now seen corresponding path program 1 times [2021-11-12 23:06:13,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:13,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892728126] [2021-11-12 23:06:13,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:13,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-12 23:06:13,578 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:13,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892728126] [2021-11-12 23:06:13,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892728126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:13,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:06:13,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:06:13,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231230338] [2021-11-12 23:06:13,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:13,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:06:13,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:13,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:06:13,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:06:13,581 INFO L87 Difference]: Start difference. First operand 3145 states and 5383 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:06:14,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:14,091 INFO L93 Difference]: Finished difference Result 6070 states and 9556 transitions. [2021-11-12 23:06:14,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:06:14,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 106 [2021-11-12 23:06:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:14,123 INFO L225 Difference]: With dead ends: 6070 [2021-11-12 23:06:14,123 INFO L226 Difference]: Without dead ends: 4571 [2021-11-12 23:06:14,131 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 [2021-11-12 23:06:14,133 INFO L933 BasicCegarLoop]: 3187 mSDtfsCounter, 3378 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 287.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3378 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.54ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 353.33ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:14,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3378 Valid, 3292 Invalid, 265 Unknown, 0 Unchecked, 9.54ms Time], IncrementalHoareTripleChecker [2 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 353.33ms Time] [2021-11-12 23:06:14,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2021-11-12 23:06:14,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4545. [2021-11-12 23:06:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 3931 states have (on average 1.6502162299669296) internal successors, (6487), 3949 states have internal predecessors, (6487), 404 states have call successors, (404), 208 states have call predecessors, (404), 208 states have return successors, (404), 388 states have call predecessors, (404), 404 states have call successors, (404) [2021-11-12 23:06:14,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 7295 transitions. [2021-11-12 23:06:14,344 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 7295 transitions. Word has length 106 [2021-11-12 23:06:14,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:14,344 INFO L470 AbstractCegarLoop]: Abstraction has 4545 states and 7295 transitions. [2021-11-12 23:06:14,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:06:14,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 7295 transitions. [2021-11-12 23:06:14,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-12 23:06:14,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:14,357 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:14,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-12 23:06:14,357 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:14,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:14,358 INFO L85 PathProgramCache]: Analyzing trace with hash -535112193, now seen corresponding path program 1 times [2021-11-12 23:06:14,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:14,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826907133] [2021-11-12 23:06:14,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:14,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-12 23:06:14,433 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:14,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826907133] [2021-11-12 23:06:14,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826907133] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:14,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208544014] [2021-11-12 23:06:14,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:14,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:14,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:14,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:06:14,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 23:06:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:14,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:14,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 23:06:14,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:15,039 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-12 23:06:15,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208544014] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:15,040 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:06:15,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-12 23:06:15,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099658267] [2021-11-12 23:06:15,040 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:15,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:15,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:15,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:15,053 INFO L87 Difference]: Start difference. First operand 4545 states and 7295 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:15,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:15,711 INFO L93 Difference]: Finished difference Result 7205 states and 11065 transitions. [2021-11-12 23:06:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:06:15,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2021-11-12 23:06:15,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:15,756 INFO L225 Difference]: With dead ends: 7205 [2021-11-12 23:06:15,756 INFO L226 Difference]: Without dead ends: 5719 [2021-11-12 23:06:15,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:15,765 INFO L933 BasicCegarLoop]: 3238 mSDtfsCounter, 148 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 370.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 6430 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.95ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 447.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:15,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 6430 Invalid, 504 Unknown, 0 Unchecked, 12.95ms Time], IncrementalHoareTripleChecker [12 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 447.43ms Time] [2021-11-12 23:06:15,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5719 states. [2021-11-12 23:06:16,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5719 to 5053. [2021-11-12 23:06:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5053 states, 4391 states have (on average 1.6467774994306537) internal successors, (7231), 4409 states have internal predecessors, (7231), 428 states have call successors, (428), 232 states have call predecessors, (428), 232 states have return successors, (428), 412 states have call predecessors, (428), 428 states have call successors, (428) [2021-11-12 23:06:16,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5053 states to 5053 states and 8087 transitions. [2021-11-12 23:06:16,172 INFO L78 Accepts]: Start accepts. Automaton has 5053 states and 8087 transitions. Word has length 120 [2021-11-12 23:06:16,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:16,173 INFO L470 AbstractCegarLoop]: Abstraction has 5053 states and 8087 transitions. [2021-11-12 23:06:16,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5053 states and 8087 transitions. [2021-11-12 23:06:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-12 23:06:16,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:16,187 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:16,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:16,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-12 23:06:16,403 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:16,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:16,403 INFO L85 PathProgramCache]: Analyzing trace with hash 214787635, now seen corresponding path program 1 times [2021-11-12 23:06:16,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:16,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950428819] [2021-11-12 23:06:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:16,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-12 23:06:16,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:16,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950428819] [2021-11-12 23:06:16,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950428819] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:16,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051748132] [2021-11-12 23:06:16,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:16,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:16,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:16,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:06:16,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 23:06:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:16,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:16,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 23:06:16,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:17,209 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-12 23:06:17,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051748132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:17,209 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:06:17,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-12 23:06:17,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659641169] [2021-11-12 23:06:17,210 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:17,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:17,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:17,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:17,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:17,212 INFO L87 Difference]: Start difference. First operand 5053 states and 8087 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:17,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:17,984 INFO L93 Difference]: Finished difference Result 8297 states and 12733 transitions. [2021-11-12 23:06:17,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:06:17,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2021-11-12 23:06:17,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:18,038 INFO L225 Difference]: With dead ends: 8297 [2021-11-12 23:06:18,038 INFO L226 Difference]: Without dead ends: 6551 [2021-11-12 23:06:18,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:18,047 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 105 mSDsluCounter, 6831 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 432.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 9618 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.08ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 536.89ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:18,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 9618 Invalid, 733 Unknown, 0 Unchecked, 16.08ms Time], IncrementalHoareTripleChecker [2 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 536.89ms Time] [2021-11-12 23:06:18,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6551 states. [2021-11-12 23:06:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6551 to 5773. [2021-11-12 23:06:18,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5773 states, 5039 states have (on average 1.6398094860091288) internal successors, (8263), 5057 states have internal predecessors, (8263), 464 states have call successors, (464), 268 states have call predecessors, (464), 268 states have return successors, (464), 448 states have call predecessors, (464), 464 states have call successors, (464) [2021-11-12 23:06:18,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5773 states to 5773 states and 9191 transitions. [2021-11-12 23:06:18,335 INFO L78 Accepts]: Start accepts. Automaton has 5773 states and 9191 transitions. Word has length 120 [2021-11-12 23:06:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:18,336 INFO L470 AbstractCegarLoop]: Abstraction has 5773 states and 9191 transitions. [2021-11-12 23:06:18,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5773 states and 9191 transitions. [2021-11-12 23:06:18,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-12 23:06:18,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:18,355 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:18,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:18,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:18,583 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:18,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1096546660, now seen corresponding path program 1 times [2021-11-12 23:06:18,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:18,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467106346] [2021-11-12 23:06:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:18,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-12 23:06:18,659 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:18,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467106346] [2021-11-12 23:06:18,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467106346] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:18,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428275632] [2021-11-12 23:06:18,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:18,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:18,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:18,661 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:06:18,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:06:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:18,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:18,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 23:06:19,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-12 23:06:19,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428275632] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:19,293 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:06:19,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-12 23:06:19,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396913460] [2021-11-12 23:06:19,293 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:19,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:19,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:19,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:19,294 INFO L87 Difference]: Start difference. First operand 5773 states and 9191 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:19,939 INFO L93 Difference]: Finished difference Result 9849 states and 15103 transitions. [2021-11-12 23:06:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:06:19,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2021-11-12 23:06:19,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:19,966 INFO L225 Difference]: With dead ends: 9849 [2021-11-12 23:06:19,967 INFO L226 Difference]: Without dead ends: 7707 [2021-11-12 23:06:19,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:19,975 INFO L933 BasicCegarLoop]: 3256 mSDtfsCounter, 184 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 357.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 6458 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.56ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 432.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:19,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 6458 Invalid, 508 Unknown, 0 Unchecked, 10.56ms Time], IncrementalHoareTripleChecker [12 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 432.91ms Time] [2021-11-12 23:06:19,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7707 states. [2021-11-12 23:06:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7707 to 6817. [2021-11-12 23:06:20,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6817 states, 5975 states have (on average 1.6299581589958159) internal successors, (9739), 5993 states have internal predecessors, (9739), 518 states have call successors, (518), 322 states have call predecessors, (518), 322 states have return successors, (518), 502 states have call predecessors, (518), 518 states have call successors, (518) [2021-11-12 23:06:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6817 states to 6817 states and 10775 transitions. [2021-11-12 23:06:20,241 INFO L78 Accepts]: Start accepts. Automaton has 6817 states and 10775 transitions. Word has length 120 [2021-11-12 23:06:20,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:20,241 INFO L470 AbstractCegarLoop]: Abstraction has 6817 states and 10775 transitions. [2021-11-12 23:06:20,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:20,242 INFO L276 IsEmpty]: Start isEmpty. Operand 6817 states and 10775 transitions. [2021-11-12 23:06:20,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-12 23:06:20,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:20,259 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:20,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:20,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:20,487 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:20,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1915018841, now seen corresponding path program 1 times [2021-11-12 23:06:20,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:20,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310868372] [2021-11-12 23:06:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:20,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-12 23:06:20,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:20,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310868372] [2021-11-12 23:06:20,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310868372] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:20,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799545081] [2021-11-12 23:06:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:20,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:20,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:20,571 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:06:20,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 23:06:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:20,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:06:20,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:21,023 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 23:06:21,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:21,239 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-12 23:06:21,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799545081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:06:21,240 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:06:21,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-12 23:06:21,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892382923] [2021-11-12 23:06:21,243 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:06:21,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:06:21,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:06:21,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:06:21,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:21,244 INFO L87 Difference]: Start difference. First operand 6817 states and 10775 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:21,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:06:21,977 INFO L93 Difference]: Finished difference Result 11547 states and 17758 transitions. [2021-11-12 23:06:21,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:06:21,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2021-11-12 23:06:21,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:06:22,008 INFO L225 Difference]: With dead ends: 11547 [2021-11-12 23:06:22,008 INFO L226 Difference]: Without dead ends: 8856 [2021-11-12 23:06:22,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:06:22,018 INFO L933 BasicCegarLoop]: 3238 mSDtfsCounter, 81 mSDsluCounter, 6816 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 406.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 9592 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.16ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 494.98ms IncrementalHoareTripleChecker+Time [2021-11-12 23:06:22,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 9592 Invalid, 729 Unknown, 0 Unchecked, 14.16ms Time], IncrementalHoareTripleChecker [2 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 494.98ms Time] [2021-11-12 23:06:22,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8856 states. [2021-11-12 23:06:22,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8856 to 8302. [2021-11-12 23:06:22,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8302 states, 7298 states have (on average 1.6156481227733626) internal successors, (11791), 7316 states have internal predecessors, (11791), 599 states have call successors, (599), 403 states have call predecessors, (599), 403 states have return successors, (599), 583 states have call predecessors, (599), 599 states have call successors, (599) [2021-11-12 23:06:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8302 states to 8302 states and 12989 transitions. [2021-11-12 23:06:22,331 INFO L78 Accepts]: Start accepts. Automaton has 8302 states and 12989 transitions. Word has length 120 [2021-11-12 23:06:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:06:22,332 INFO L470 AbstractCegarLoop]: Abstraction has 8302 states and 12989 transitions. [2021-11-12 23:06:22,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-12 23:06:22,332 INFO L276 IsEmpty]: Start isEmpty. Operand 8302 states and 12989 transitions. [2021-11-12 23:06:22,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-12 23:06:22,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:06:22,351 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:06:22,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:06:22,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-12 23:06:22,571 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:06:22,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:06:22,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1114508512, now seen corresponding path program 2 times [2021-11-12 23:06:22,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:06:22,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036168142] [2021-11-12 23:06:22,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:06:22,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:06:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:06:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 10 proven. 31 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-12 23:06:22,666 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:06:22,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036168142] [2021-11-12 23:06:22,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036168142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:06:22,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824181520] [2021-11-12 23:06:22,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:06:22,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:06:22,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:06:22,668 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:06:22,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:06:22,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-12 23:06:22,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:06:22,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-12 23:06:22,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:06:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 56 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-12 23:06:23,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:06:23,728 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 19 proven. 34 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-12 23:06:23,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824181520] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:06:23,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [915367359] [2021-11-12 23:06:23,756 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2021-11-12 23:06:23,756 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:06:23,762 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:06:23,768 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:06:23,768 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:06:23,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:23,894 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:23,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:23,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:06:23,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:23,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:23,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:06:23,910 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-11-12 23:06:23,939 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_9|], 21=[|v_#valid_10|]} [2021-11-12 23:06:23,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:23,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:23,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:23,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:06:23,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:23,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:06:23,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:23,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:06:23,975 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:06:23,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,023 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:06:24,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:06:24,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:06:24,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:06:24,059 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:06:24,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-12 23:06:24,112 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:06:24,112 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:247, output treesize:222 [2021-11-12 23:06:24,137 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-12 23:06:24,153 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-12 23:06:24,166 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:06:24,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:06:24,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,706 INFO L180 QuantifierPusher]: treesize reduction 285, result has 51.9 percent of original size [2021-11-12 23:06:24,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:06:24,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:24,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-12 23:06:24,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:24,902 INFO L185 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size 41 [2021-11-12 23:06:24,903 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:06:25,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:25,251 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:06:25,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:25,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:25,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:25,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-12 23:06:25,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:25,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:25,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:25,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:25,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-12 23:06:25,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:25,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-12 23:06:25,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:26,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-12 23:06:26,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:26,480 INFO L185 QuantifierPusher]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-11-12 23:06:26,484 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.5 percent of original size [2021-11-12 23:06:26,488 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.0 percent of original size 96 [2021-11-12 23:06:26,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,565 INFO L180 QuantifierPusher]: treesize reduction 6, result has 92.2 percent of original size [2021-11-12 23:06:26,568 INFO L185 QuantifierPusher]: treesize reduction 5, result has 92.4 percent of original size 61 [2021-11-12 23:06:26,574 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.2 percent of original size [2021-11-12 23:06:26,579 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.7 percent of original size 89 [2021-11-12 23:06:26,586 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.2 percent of original size [2021-11-12 23:06:26,597 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.9 percent of original size 117 [2021-11-12 23:06:26,643 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.5 percent of original size [2021-11-12 23:06:26,655 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:26,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:26,657 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:06:26,677 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:06:26,689 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:26,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-12 23:06:26,740 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.5 percent of original size [2021-11-12 23:06:26,745 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:26,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:26,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:06:26,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:06:26,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:26,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:27,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:06:27,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:27,166 INFO L185 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size 41 [2021-11-12 23:06:27,167 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:06:27,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,478 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:06:27,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:27,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:27,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:06:27,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:06:28,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:06:28,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,207 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-12 23:06:28,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:06:28,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,276 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-12 23:06:28,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:06:28,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-12 23:06:28,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,434 INFO L180 QuantifierPusher]: treesize reduction 14, result has 93.8 percent of original size [2021-11-12 23:06:28,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-12 23:06:28,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-12 23:06:28,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-11-12 23:06:28,519 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-11-12 23:06:28,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-11-12 23:06:28,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-12 23:06:28,567 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:06:28,577 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-11-12 23:06:28,583 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:28,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:06:28,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-12 23:06:28,598 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:06:28,612 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-11-12 23:06:28,621 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:28,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:06:28,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-12 23:06:28,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,651 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.8 percent of original size [2021-11-12 23:06:28,661 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-12 23:06:28,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:28,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-12 23:06:28,692 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.8 percent of original size [2021-11-12 23:06:28,701 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-12 23:06:28,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,808 INFO L180 QuantifierPusher]: treesize reduction 18, result has 93.1 percent of original size [2021-11-12 23:06:28,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-12 23:06:28,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:28,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 518 [2021-11-12 23:06:29,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 522 [2021-11-12 23:06:29,165 INFO L180 QuantifierPusher]: treesize reduction 4, result has 99.3 percent of original size [2021-11-12 23:06:29,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 530 [2021-11-12 23:06:29,215 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 513 [2021-11-12 23:06:29,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,284 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:29,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 407 [2021-11-12 23:06:29,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 498 [2021-11-12 23:06:29,369 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 589 [2021-11-12 23:06:29,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,399 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:29,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 407 [2021-11-12 23:06:29,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 498 [2021-11-12 23:06:29,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 589 [2021-11-12 23:06:29,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,720 INFO L180 QuantifierPusher]: treesize reduction 20, result has 92.1 percent of original size [2021-11-12 23:06:29,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-12 23:06:29,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-12 23:06:29,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-11-12 23:06:29,781 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-11-12 23:06:29,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-11-12 23:06:29,799 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-12 23:06:29,819 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.8 percent of original size [2021-11-12 23:06:29,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-12 23:06:29,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:29,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-12 23:06:29,861 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.8 percent of original size [2021-11-12 23:06:29,870 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-11-12 23:06:29,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:29,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,036 INFO L180 QuantifierPusher]: treesize reduction 18, result has 93.1 percent of original size [2021-11-12 23:06:30,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-11-12 23:06:30,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:30,066 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-12 23:06:30,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:30,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 518 [2021-11-12 23:06:30,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:30,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 522 [2021-11-12 23:06:30,631 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:30,655 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 513 [2021-11-12 23:06:30,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:30,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,181 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-12 23:06:31,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-12 23:06:31,194 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.9 percent of original size [2021-11-12 23:06:31,202 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-12 23:06:31,210 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-12 23:06:31,215 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-12 23:06:31,224 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.9 percent of original size [2021-11-12 23:06:31,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-12 23:06:31,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,361 INFO L180 QuantifierPusher]: treesize reduction 14, result has 93.9 percent of original size [2021-11-12 23:06:31,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-11-12 23:06:31,374 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-12 23:06:31,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-12 23:06:31,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:31,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:06:31,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:31,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-12 23:06:31,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:31,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-12 23:06:31,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:31,566 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:31,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:06:31,572 INFO L197 IcfgInterpreter]: Interpreting procedure reset_delta_events with input of size 141 for LOIs [2021-11-12 23:06:31,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:31,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-11-12 23:06:31,603 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:06:32,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:32,253 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:06:33,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:38,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:38,497 INFO L197 IcfgInterpreter]: Interpreting procedure fire_delta_events with input of size 176 for LOIs [2021-11-12 23:06:38,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:38,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 449 [2021-11-12 23:06:38,550 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:06:39,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:39,255 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:06:40,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,471 INFO L197 IcfgInterpreter]: Interpreting procedure update_channels with input of size 142 for LOIs [2021-11-12 23:06:40,475 INFO L197 IcfgInterpreter]: Interpreting procedure exists_runnable_thread with input of size 115 for LOIs [2021-11-12 23:06:40,478 INFO L197 IcfgInterpreter]: Interpreting procedure immediate_notify with input of size 130 for LOIs [2021-11-12 23:06:40,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:40,496 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-12 23:06:40,527 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.3 percent of original size [2021-11-12 23:06:40,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:40,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:40,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:06:40,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-12 23:06:40,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:40,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-12 23:06:40,604 INFO L180 QuantifierPusher]: treesize reduction 13, result has 96.3 percent of original size [2021-11-12 23:06:40,610 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:06:40,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:40,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:06:40,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-12 23:06:40,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,770 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:40,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-11-12 23:06:40,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:40,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:06:41,072 INFO L197 IcfgInterpreter]: Interpreting procedure activate_threads with input of size 171 for LOIs [2021-11-12 23:06:41,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:41,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1073 [2021-11-12 23:06:41,236 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:41,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1108 [2021-11-12 23:06:41,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:41,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1143 [2021-11-12 23:06:41,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:41,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1178 [2021-11-12 23:06:41,546 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:06:41,605 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1213 [2021-11-12 23:06:41,609 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-12 23:07:27,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [915367359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:07:27,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:07:27,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [6, 7, 6] total 52 [2021-11-12 23:07:27,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653826042] [2021-11-12 23:07:27,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:07:27,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-12 23:07:27,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:07:27,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-12 23:07:27,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=449, Invalid=2203, Unknown=0, NotChecked=0, Total=2652 [2021-11-12 23:07:27,581 INFO L87 Difference]: Start difference. First operand 8302 states and 12989 transitions. Second operand has 41 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 33 states have internal predecessors, (53), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 23:09:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:00,970 INFO L93 Difference]: Finished difference Result 15612 states and 23641 transitions. [2021-11-12 23:09:00,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-12 23:09:00,971 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 33 states have internal predecessors, (53), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 120 [2021-11-12 23:09:00,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:00,998 INFO L225 Difference]: With dead ends: 15612 [2021-11-12 23:09:00,998 INFO L226 Difference]: Without dead ends: 8933 [2021-11-12 23:09:01,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 299 SyntacticMatches, 17 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3597 ImplicationChecksByTransitivity, 94.4s TimeCoverageRelationStatistics Valid=1424, Invalid=8676, Unknown=0, NotChecked=0, Total=10100 [2021-11-12 23:09:01,014 INFO L933 BasicCegarLoop]: 3270 mSDtfsCounter, 572 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 33033 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40025.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 33267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 129.92ms SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 33033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44068.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:01,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 4964 Invalid, 33267 Unknown, 0 Unchecked, 129.92ms Time], IncrementalHoareTripleChecker [234 Valid, 33033 Invalid, 0 Unknown, 0 Unchecked, 44068.32ms Time] [2021-11-12 23:09:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8933 states. [2021-11-12 23:09:01,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8933 to 8466. [2021-11-12 23:09:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8466 states, 7429 states have (on average 1.6068111455108358) internal successors, (11937), 7445 states have internal predecessors, (11937), 615 states have call successors, (615), 420 states have call predecessors, (615), 420 states have return successors, (615), 601 states have call predecessors, (615), 615 states have call successors, (615) [2021-11-12 23:09:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8466 states to 8466 states and 13167 transitions. [2021-11-12 23:09:01,491 INFO L78 Accepts]: Start accepts. Automaton has 8466 states and 13167 transitions. Word has length 120 [2021-11-12 23:09:01,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:01,491 INFO L470 AbstractCegarLoop]: Abstraction has 8466 states and 13167 transitions. [2021-11-12 23:09:01,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 33 states have internal predecessors, (53), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-12 23:09:01,492 INFO L276 IsEmpty]: Start isEmpty. Operand 8466 states and 13167 transitions. [2021-11-12 23:09:01,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-12 23:09:01,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:01,512 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:01,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:01,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:01,739 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:01,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:01,739 INFO L85 PathProgramCache]: Analyzing trace with hash 725923562, now seen corresponding path program 1 times [2021-11-12 23:09:01,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:01,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327250432] [2021-11-12 23:09:01,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:01,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:01,833 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 33 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-12 23:09:01,833 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:01,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327250432] [2021-11-12 23:09:01,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327250432] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:01,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768280533] [2021-11-12 23:09:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:01,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:01,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:01,835 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:01,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-12 23:09:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:01,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:09:01,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-12 23:09:02,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-12 23:09:02,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768280533] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:02,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:02,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 8 [2021-11-12 23:09:02,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322922254] [2021-11-12 23:09:02,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:02,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:09:02,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:02,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:09:02,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:02,355 INFO L87 Difference]: Start difference. First operand 8466 states and 13167 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:09:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:03,013 INFO L93 Difference]: Finished difference Result 12660 states and 19461 transitions. [2021-11-12 23:09:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:09:03,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2021-11-12 23:09:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:03,041 INFO L225 Difference]: With dead ends: 12660 [2021-11-12 23:09:03,041 INFO L226 Difference]: Without dead ends: 8484 [2021-11-12 23:09:03,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:03,053 INFO L933 BasicCegarLoop]: 3236 mSDtfsCounter, 108 mSDsluCounter, 3396 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 298.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 6399 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.09ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 358.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:03,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 6399 Invalid, 493 Unknown, 0 Unchecked, 7.09ms Time], IncrementalHoareTripleChecker [2 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 358.24ms Time] [2021-11-12 23:09:03,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2021-11-12 23:09:03,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 8336. [2021-11-12 23:09:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8336 states, 7299 states have (on average 1.5932319495821345) internal successors, (11629), 7315 states have internal predecessors, (11629), 615 states have call successors, (615), 420 states have call predecessors, (615), 420 states have return successors, (615), 601 states have call predecessors, (615), 615 states have call successors, (615) [2021-11-12 23:09:03,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 12859 transitions. [2021-11-12 23:09:03,456 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 12859 transitions. Word has length 121 [2021-11-12 23:09:03,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:03,457 INFO L470 AbstractCegarLoop]: Abstraction has 8336 states and 12859 transitions. [2021-11-12 23:09:03,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:09:03,457 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 12859 transitions. [2021-11-12 23:09:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-12 23:09:03,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:03,477 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:03,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:03,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable254 [2021-11-12 23:09:03,693 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:03,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:03,693 INFO L85 PathProgramCache]: Analyzing trace with hash 838279754, now seen corresponding path program 1 times [2021-11-12 23:09:03,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:03,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222907194] [2021-11-12 23:09:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:03,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 17 proven. 31 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-12 23:09:03,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:03,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222907194] [2021-11-12 23:09:03,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222907194] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:03,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763266656] [2021-11-12 23:09:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:03,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:03,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:03,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:03,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-12 23:09:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:03,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:09:03,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-12 23:09:04,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-12 23:09:04,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763266656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:09:04,385 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:09:04,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2021-11-12 23:09:04,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008904133] [2021-11-12 23:09:04,386 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:04,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:09:04,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:09:04,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:04,387 INFO L87 Difference]: Start difference. First operand 8336 states and 12859 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-12 23:09:05,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:05,057 INFO L93 Difference]: Finished difference Result 12476 states and 18793 transitions. [2021-11-12 23:09:05,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:09:05,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2021-11-12 23:09:05,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:05,085 INFO L225 Difference]: With dead ends: 12476 [2021-11-12 23:09:05,085 INFO L226 Difference]: Without dead ends: 8972 [2021-11-12 23:09:05,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:05,096 INFO L933 BasicCegarLoop]: 3197 mSDtfsCounter, 3410 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 303.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3410 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.27ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 389.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:05,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3410 Valid, 6355 Invalid, 532 Unknown, 0 Unchecked, 10.27ms Time], IncrementalHoareTripleChecker [5 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 389.02ms Time] [2021-11-12 23:09:05,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8972 states. [2021-11-12 23:09:05,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8972 to 8972. [2021-11-12 23:09:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 7851 states have (on average 1.5650235638772132) internal successors, (12287), 7867 states have internal predecessors, (12287), 643 states have call successors, (643), 476 states have call predecessors, (643), 476 states have return successors, (643), 629 states have call predecessors, (643), 643 states have call successors, (643) [2021-11-12 23:09:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 13573 transitions. [2021-11-12 23:09:05,509 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 13573 transitions. Word has length 121 [2021-11-12 23:09:05,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:05,510 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 13573 transitions. [2021-11-12 23:09:05,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-12 23:09:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 13573 transitions. [2021-11-12 23:09:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-12 23:09:05,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:05,532 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:05,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:05,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable255 [2021-11-12 23:09:05,747 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:05,747 INFO L85 PathProgramCache]: Analyzing trace with hash 155518313, now seen corresponding path program 1 times [2021-11-12 23:09:05,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:05,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049179706] [2021-11-12 23:09:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:05,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 17 proven. 32 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-12 23:09:05,810 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:05,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049179706] [2021-11-12 23:09:05,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049179706] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:05,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669899726] [2021-11-12 23:09:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:05,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:05,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:05,812 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:05,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-12 23:09:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:05,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:09:05,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-12 23:09:06,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 19 proven. 32 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-12 23:09:06,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669899726] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:06,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:06,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 11 [2021-11-12 23:09:06,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274992469] [2021-11-12 23:09:06,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:06,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:09:06,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:06,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:09:06,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:09:06,601 INFO L87 Difference]: Start difference. First operand 8972 states and 13573 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:09:07,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:07,538 INFO L93 Difference]: Finished difference Result 18903 states and 27468 transitions. [2021-11-12 23:09:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:09:07,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 122 [2021-11-12 23:09:07,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:07,570 INFO L225 Difference]: With dead ends: 18903 [2021-11-12 23:09:07,570 INFO L226 Difference]: Without dead ends: 11631 [2021-11-12 23:09:07,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:09:07,589 INFO L933 BasicCegarLoop]: 3175 mSDtfsCounter, 6970 mSDsluCounter, 6698 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 408.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6983 SdHoareTripleChecker+Valid, 9421 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.88ms SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 521.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:07,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6983 Valid, 9421 Invalid, 903 Unknown, 0 Unchecked, 15.88ms Time], IncrementalHoareTripleChecker [151 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 521.95ms Time] [2021-11-12 23:09:07,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11631 states. [2021-11-12 23:09:08,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11631 to 11629. [2021-11-12 23:09:08,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11629 states, 10054 states have (on average 1.5173065446588423) internal successors, (15255), 10078 states have internal predecessors, (15255), 906 states have call successors, (906), 667 states have call predecessors, (906), 667 states have return successors, (906), 884 states have call predecessors, (906), 906 states have call successors, (906) [2021-11-12 23:09:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11629 states to 11629 states and 17067 transitions. [2021-11-12 23:09:08,262 INFO L78 Accepts]: Start accepts. Automaton has 11629 states and 17067 transitions. Word has length 122 [2021-11-12 23:09:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:08,263 INFO L470 AbstractCegarLoop]: Abstraction has 11629 states and 17067 transitions. [2021-11-12 23:09:08,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:09:08,263 INFO L276 IsEmpty]: Start isEmpty. Operand 11629 states and 17067 transitions. [2021-11-12 23:09:08,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-12 23:09:08,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:08,303 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:08,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:08,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable256 [2021-11-12 23:09:08,531 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:08,531 INFO L85 PathProgramCache]: Analyzing trace with hash -290597014, now seen corresponding path program 1 times [2021-11-12 23:09:08,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:08,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637892649] [2021-11-12 23:09:08,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:08,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 14 proven. 32 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-12 23:09:08,634 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:08,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637892649] [2021-11-12 23:09:08,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637892649] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:08,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980637957] [2021-11-12 23:09:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:08,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:08,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:08,636 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:08,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-12 23:09:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:08,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:09:08,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:09:08,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:09,181 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 29 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-12 23:09:09,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980637957] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:09,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:09,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 8 [2021-11-12 23:09:09,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945611036] [2021-11-12 23:09:09,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:09,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:09:09,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:09,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:09:09,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:09,183 INFO L87 Difference]: Start difference. First operand 11629 states and 17067 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:09:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:10,013 INFO L93 Difference]: Finished difference Result 18756 states and 27275 transitions. [2021-11-12 23:09:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:09:10,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 125 [2021-11-12 23:09:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:10,043 INFO L225 Difference]: With dead ends: 18756 [2021-11-12 23:09:10,044 INFO L226 Difference]: Without dead ends: 11647 [2021-11-12 23:09:10,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:10,062 INFO L933 BasicCegarLoop]: 3261 mSDtfsCounter, 101 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 324.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 6422 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.53ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 388.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:10,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 6422 Invalid, 496 Unknown, 0 Unchecked, 7.53ms Time], IncrementalHoareTripleChecker [2 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 388.35ms Time] [2021-11-12 23:09:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11647 states. [2021-11-12 23:09:10,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11647 to 11499. [2021-11-12 23:09:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11499 states, 9924 states have (on average 1.5013099556630392) internal successors, (14899), 9948 states have internal predecessors, (14899), 906 states have call successors, (906), 667 states have call predecessors, (906), 667 states have return successors, (906), 884 states have call predecessors, (906), 906 states have call successors, (906) [2021-11-12 23:09:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 16711 transitions. [2021-11-12 23:09:10,631 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 16711 transitions. Word has length 125 [2021-11-12 23:09:10,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:10,632 INFO L470 AbstractCegarLoop]: Abstraction has 11499 states and 16711 transitions. [2021-11-12 23:09:10,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:09:10,632 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 16711 transitions. [2021-11-12 23:09:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-12 23:09:10,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:10,664 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:10,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:10,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable257 [2021-11-12 23:09:10,891 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1148910410, now seen corresponding path program 1 times [2021-11-12 23:09:10,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:10,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636938704] [2021-11-12 23:09:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:10,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 14 proven. 30 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-12 23:09:10,967 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:10,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636938704] [2021-11-12 23:09:10,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636938704] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:10,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159522903] [2021-11-12 23:09:10,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:10,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:10,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:10,969 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:10,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-12 23:09:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:11,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:09:11,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-12 23:09:11,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:11,667 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 13 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-12 23:09:11,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159522903] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:11,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:11,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 8 [2021-11-12 23:09:11,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025543456] [2021-11-12 23:09:11,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:11,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:09:11,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:11,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:09:11,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:11,671 INFO L87 Difference]: Start difference. First operand 11499 states and 16711 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 23:09:12,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:12,611 INFO L93 Difference]: Finished difference Result 29057 states and 40451 transitions. [2021-11-12 23:09:12,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:09:12,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 125 [2021-11-12 23:09:12,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:12,669 INFO L225 Difference]: With dead ends: 29057 [2021-11-12 23:09:12,670 INFO L226 Difference]: Without dead ends: 19258 [2021-11-12 23:09:12,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:09:12,693 INFO L933 BasicCegarLoop]: 3254 mSDtfsCounter, 3399 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 277.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3399 SdHoareTripleChecker+Valid, 6611 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.21ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 339.82ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:12,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3399 Valid, 6611 Invalid, 531 Unknown, 0 Unchecked, 9.21ms Time], IncrementalHoareTripleChecker [3 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 339.82ms Time] [2021-11-12 23:09:12,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19258 states. [2021-11-12 23:09:13,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19258 to 19231. [2021-11-12 23:09:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19231 states, 16311 states have (on average 1.4358408436024768) internal successors, (23420), 16381 states have internal predecessors, (23420), 1672 states have call successors, (1672), 1222 states have call predecessors, (1672), 1246 states have return successors, (1744), 1628 states have call predecessors, (1744), 1672 states have call successors, (1744) [2021-11-12 23:09:13,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19231 states to 19231 states and 26836 transitions. [2021-11-12 23:09:13,709 INFO L78 Accepts]: Start accepts. Automaton has 19231 states and 26836 transitions. Word has length 125 [2021-11-12 23:09:13,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:13,709 INFO L470 AbstractCegarLoop]: Abstraction has 19231 states and 26836 transitions. [2021-11-12 23:09:13,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 23:09:13,709 INFO L276 IsEmpty]: Start isEmpty. Operand 19231 states and 26836 transitions. [2021-11-12 23:09:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-12 23:09:13,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:13,733 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:13,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:13,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable258 [2021-11-12 23:09:13,947 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:13,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1376734811, now seen corresponding path program 1 times [2021-11-12 23:09:13,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:13,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432154425] [2021-11-12 23:09:13,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:13,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:14,015 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 14 proven. 31 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-12 23:09:14,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:14,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432154425] [2021-11-12 23:09:14,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432154425] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:14,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30972874] [2021-11-12 23:09:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:14,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:14,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:14,018 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:14,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-12 23:09:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:14,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:09:14,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:14,332 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-12 23:09:14,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 31 proven. 14 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-11-12 23:09:14,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30972874] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:14,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:14,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 8 [2021-11-12 23:09:14,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254666944] [2021-11-12 23:09:14,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:14,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:09:14,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:14,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:09:14,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:14,534 INFO L87 Difference]: Start difference. First operand 19231 states and 26836 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:09:15,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:15,332 INFO L93 Difference]: Finished difference Result 23579 states and 32835 transitions. [2021-11-12 23:09:15,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:09:15,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 126 [2021-11-12 23:09:15,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:15,370 INFO L225 Difference]: With dead ends: 23579 [2021-11-12 23:09:15,370 INFO L226 Difference]: Without dead ends: 17903 [2021-11-12 23:09:15,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:15,384 INFO L933 BasicCegarLoop]: 3185 mSDtfsCounter, 28 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 257.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 6351 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.66ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 311.60ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:15,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 6351 Invalid, 479 Unknown, 0 Unchecked, 4.66ms Time], IncrementalHoareTripleChecker [0 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 311.60ms Time] [2021-11-12 23:09:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17903 states. [2021-11-12 23:09:16,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17903 to 17627. [2021-11-12 23:09:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17627 states, 14899 states have (on average 1.445801731659843) internal successors, (21541), 14933 states have internal predecessors, (21541), 1588 states have call successors, (1588), 1138 states have call predecessors, (1588), 1138 states have return successors, (1588), 1556 states have call predecessors, (1588), 1588 states have call successors, (1588) [2021-11-12 23:09:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17627 states to 17627 states and 24717 transitions. [2021-11-12 23:09:16,185 INFO L78 Accepts]: Start accepts. Automaton has 17627 states and 24717 transitions. Word has length 126 [2021-11-12 23:09:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:16,185 INFO L470 AbstractCegarLoop]: Abstraction has 17627 states and 24717 transitions. [2021-11-12 23:09:16,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:09:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 17627 states and 24717 transitions. [2021-11-12 23:09:16,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-12 23:09:16,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:16,219 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:16,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:16,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable259 [2021-11-12 23:09:16,419 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1219035850, now seen corresponding path program 1 times [2021-11-12 23:09:16,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:16,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340905334] [2021-11-12 23:09:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:16,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 18 proven. 34 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-12 23:09:16,529 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:16,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340905334] [2021-11-12 23:09:16,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340905334] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:16,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814976443] [2021-11-12 23:09:16,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:16,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:16,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:16,531 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:16,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-12 23:09:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:16,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:09:16,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:09:16,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 37 proven. 11 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:09:17,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814976443] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:17,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:17,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 6] total 10 [2021-11-12 23:09:17,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286134790] [2021-11-12 23:09:17,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:17,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:09:17,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:17,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:09:17,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:09:17,167 INFO L87 Difference]: Start difference. First operand 17627 states and 24717 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:09:18,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:18,097 INFO L93 Difference]: Finished difference Result 30343 states and 41900 transitions. [2021-11-12 23:09:18,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:09:18,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 128 [2021-11-12 23:09:18,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:18,149 INFO L225 Difference]: With dead ends: 30343 [2021-11-12 23:09:18,150 INFO L226 Difference]: Without dead ends: 19765 [2021-11-12 23:09:18,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:09:18,163 INFO L933 BasicCegarLoop]: 3192 mSDtfsCounter, 3356 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 194.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.18ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 245.06ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:18,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3356 Valid, 3228 Invalid, 255 Unknown, 0 Unchecked, 4.18ms Time], IncrementalHoareTripleChecker [4 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 245.06ms Time] [2021-11-12 23:09:18,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19765 states. [2021-11-12 23:09:18,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19765 to 19593. [2021-11-12 23:09:18,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19593 states, 16695 states have (on average 1.4093441150044923) internal successors, (23529), 16729 states have internal predecessors, (23529), 1624 states have call successors, (1624), 1272 states have call predecessors, (1624), 1272 states have return successors, (1746), 1592 states have call predecessors, (1746), 1624 states have call successors, (1746) [2021-11-12 23:09:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19593 states to 19593 states and 26899 transitions. [2021-11-12 23:09:18,962 INFO L78 Accepts]: Start accepts. Automaton has 19593 states and 26899 transitions. Word has length 128 [2021-11-12 23:09:18,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:18,963 INFO L470 AbstractCegarLoop]: Abstraction has 19593 states and 26899 transitions. [2021-11-12 23:09:18,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:09:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 19593 states and 26899 transitions. [2021-11-12 23:09:18,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-12 23:09:18,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:18,984 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:19,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:19,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:19,211 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:19,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:19,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1770272708, now seen corresponding path program 1 times [2021-11-12 23:09:19,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:19,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824925476] [2021-11-12 23:09:19,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:19,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-12 23:09:19,310 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:19,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824925476] [2021-11-12 23:09:19,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824925476] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:19,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639419811] [2021-11-12 23:09:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:19,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:19,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:19,311 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:19,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-12 23:09:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:19,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-12 23:09:19,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:09:19,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 20 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-12 23:09:20,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639419811] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:20,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:20,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 13 [2021-11-12 23:09:20,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608925706] [2021-11-12 23:09:20,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:20,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:09:20,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:20,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:09:20,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:09:20,059 INFO L87 Difference]: Start difference. First operand 19593 states and 26899 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-12 23:09:21,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:21,542 INFO L93 Difference]: Finished difference Result 36415 states and 49298 transitions. [2021-11-12 23:09:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:09:21,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 130 [2021-11-12 23:09:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:21,599 INFO L225 Difference]: With dead ends: 36415 [2021-11-12 23:09:21,599 INFO L226 Difference]: Without dead ends: 24543 [2021-11-12 23:09:21,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:09:21,618 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 222 mSDsluCounter, 10083 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 441.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 12651 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.17ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 542.06ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:21,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 12651 Invalid, 1131 Unknown, 0 Unchecked, 10.17ms Time], IncrementalHoareTripleChecker [58 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 542.06ms Time] [2021-11-12 23:09:21,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24543 states. [2021-11-12 23:09:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24543 to 22789. [2021-11-12 23:09:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22789 states, 19277 states have (on average 1.383150905223842) internal successors, (26663), 19291 states have internal predecessors, (26663), 2004 states have call successors, (2004), 1548 states have call predecessors, (2004), 1506 states have return successors, (2190), 1950 states have call predecessors, (2190), 2004 states have call successors, (2190) [2021-11-12 23:09:22,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22789 states to 22789 states and 30857 transitions. [2021-11-12 23:09:22,617 INFO L78 Accepts]: Start accepts. Automaton has 22789 states and 30857 transitions. Word has length 130 [2021-11-12 23:09:22,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:22,617 INFO L470 AbstractCegarLoop]: Abstraction has 22789 states and 30857 transitions. [2021-11-12 23:09:22,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 5 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-12 23:09:22,618 INFO L276 IsEmpty]: Start isEmpty. Operand 22789 states and 30857 transitions. [2021-11-12 23:09:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-12 23:09:22,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:22,638 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:22,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:22,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:22,863 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:22,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:22,863 INFO L85 PathProgramCache]: Analyzing trace with hash 415531235, now seen corresponding path program 1 times [2021-11-12 23:09:22,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:22,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579648688] [2021-11-12 23:09:22,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:22,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 32 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:09:22,924 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:22,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579648688] [2021-11-12 23:09:22,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579648688] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:22,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591331445] [2021-11-12 23:09:22,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:22,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:22,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:22,926 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:22,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-12 23:09:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:23,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:09:23,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:23,287 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-12 23:09:23,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 32 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:09:23,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591331445] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:23,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:23,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 8 [2021-11-12 23:09:23,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462165187] [2021-11-12 23:09:23,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:23,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:09:23,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:23,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:09:23,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:23,661 INFO L87 Difference]: Start difference. First operand 22789 states and 30857 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:09:25,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:25,547 INFO L93 Difference]: Finished difference Result 52326 states and 69188 transitions. [2021-11-12 23:09:25,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:09:25,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 124 [2021-11-12 23:09:25,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:25,634 INFO L225 Difference]: With dead ends: 52326 [2021-11-12 23:09:25,634 INFO L226 Difference]: Without dead ends: 31282 [2021-11-12 23:09:25,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:09:25,666 INFO L933 BasicCegarLoop]: 3181 mSDtfsCounter, 3596 mSDsluCounter, 6785 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 398.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 9496 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.92ms SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 484.07ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:25,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3609 Valid, 9496 Invalid, 902 Unknown, 0 Unchecked, 12.92ms Time], IncrementalHoareTripleChecker [97 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 484.07ms Time] [2021-11-12 23:09:25,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31282 states. [2021-11-12 23:09:27,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31282 to 31268. [2021-11-12 23:09:27,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31268 states, 26262 states have (on average 1.3459751732541314) internal successors, (35348), 26282 states have internal predecessors, (35348), 2856 states have call successors, (2856), 2208 states have call predecessors, (2856), 2148 states have return successors, (3132), 2778 states have call predecessors, (3132), 2856 states have call successors, (3132) [2021-11-12 23:09:27,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31268 states to 31268 states and 41336 transitions. [2021-11-12 23:09:27,243 INFO L78 Accepts]: Start accepts. Automaton has 31268 states and 41336 transitions. Word has length 124 [2021-11-12 23:09:27,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:27,244 INFO L470 AbstractCegarLoop]: Abstraction has 31268 states and 41336 transitions. [2021-11-12 23:09:27,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:09:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 31268 states and 41336 transitions. [2021-11-12 23:09:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-12 23:09:27,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:27,268 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:27,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:27,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:27,469 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:27,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:27,470 INFO L85 PathProgramCache]: Analyzing trace with hash -271872307, now seen corresponding path program 1 times [2021-11-12 23:09:27,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:27,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600760730] [2021-11-12 23:09:27,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:27,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 32 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-12 23:09:27,529 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:27,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600760730] [2021-11-12 23:09:27,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600760730] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:27,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714592968] [2021-11-12 23:09:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:27,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:27,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:27,548 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:27,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-12 23:09:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:27,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:09:27,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-12 23:09:27,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 37 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-12 23:09:28,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714592968] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:28,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:28,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 4] total 8 [2021-11-12 23:09:28,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36520244] [2021-11-12 23:09:28,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:28,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:09:28,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:28,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:09:28,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:28,105 INFO L87 Difference]: Start difference. First operand 31268 states and 41336 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:09:29,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:29,687 INFO L93 Difference]: Finished difference Result 51535 states and 68699 transitions. [2021-11-12 23:09:29,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:09:29,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2021-11-12 23:09:29,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:29,781 INFO L225 Difference]: With dead ends: 51535 [2021-11-12 23:09:29,781 INFO L226 Difference]: Without dead ends: 30713 [2021-11-12 23:09:29,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:29,832 INFO L933 BasicCegarLoop]: 3255 mSDtfsCounter, 103 mSDsluCounter, 3393 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 273.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6415 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.57ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 353.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:29,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 6415 Invalid, 494 Unknown, 0 Unchecked, 5.57ms Time], IncrementalHoareTripleChecker [2 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 353.67ms Time] [2021-11-12 23:09:29,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30713 states. [2021-11-12 23:09:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30713 to 30449. [2021-11-12 23:09:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30449 states, 25555 states have (on average 1.3261201330463706) internal successors, (33889), 25575 states have internal predecessors, (33889), 2794 states have call successors, (2794), 2158 states have call predecessors, (2794), 2098 states have return successors, (3070), 2716 states have call predecessors, (3070), 2794 states have call successors, (3070) [2021-11-12 23:09:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30449 states to 30449 states and 39753 transitions. [2021-11-12 23:09:31,415 INFO L78 Accepts]: Start accepts. Automaton has 30449 states and 39753 transitions. Word has length 128 [2021-11-12 23:09:31,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:31,416 INFO L470 AbstractCegarLoop]: Abstraction has 30449 states and 39753 transitions. [2021-11-12 23:09:31,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:09:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand 30449 states and 39753 transitions. [2021-11-12 23:09:31,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-12 23:09:31,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:31,439 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:31,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:31,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:31,651 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:31,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:31,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1389358825, now seen corresponding path program 1 times [2021-11-12 23:09:31,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:31,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711908526] [2021-11-12 23:09:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:31,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:31,722 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 19 proven. 32 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-12 23:09:31,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:31,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711908526] [2021-11-12 23:09:31,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711908526] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:31,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509466930] [2021-11-12 23:09:31,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:31,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:31,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:31,724 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:31,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-12 23:09:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:31,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:09:31,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:32,133 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-12 23:09:32,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 19 proven. 32 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-12 23:09:32,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509466930] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:32,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:09:32,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 8 [2021-11-12 23:09:32,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216154928] [2021-11-12 23:09:32,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:32,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:09:32,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:32,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:09:32,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:09:32,444 INFO L87 Difference]: Start difference. First operand 30449 states and 39753 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:09:35,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:35,014 INFO L93 Difference]: Finished difference Result 71213 states and 91063 transitions. [2021-11-12 23:09:35,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:09:35,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 126 [2021-11-12 23:09:35,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:35,098 INFO L225 Difference]: With dead ends: 71213 [2021-11-12 23:09:35,098 INFO L226 Difference]: Without dead ends: 42509 [2021-11-12 23:09:35,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:09:35,132 INFO L933 BasicCegarLoop]: 3172 mSDtfsCounter, 3604 mSDsluCounter, 6771 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 422.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3617 SdHoareTripleChecker+Valid, 9476 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.41ms SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 516.40ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:35,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3617 Valid, 9476 Invalid, 903 Unknown, 0 Unchecked, 13.41ms Time], IncrementalHoareTripleChecker [103 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 516.40ms Time] [2021-11-12 23:09:35,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42509 states. [2021-11-12 23:09:37,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42509 to 42507. [2021-11-12 23:09:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42507 states, 35501 states have (on average 1.2917100926734457) internal successors, (45857), 35533 states have internal predecessors, (45857), 3998 states have call successors, (3998), 3090 states have call predecessors, (3998), 3006 states have return successors, (4346), 3884 states have call predecessors, (4346), 3998 states have call successors, (4346) [2021-11-12 23:09:37,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42507 states to 42507 states and 54201 transitions. [2021-11-12 23:09:37,328 INFO L78 Accepts]: Start accepts. Automaton has 42507 states and 54201 transitions. Word has length 126 [2021-11-12 23:09:37,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:37,328 INFO L470 AbstractCegarLoop]: Abstraction has 42507 states and 54201 transitions. [2021-11-12 23:09:37,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-12 23:09:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 42507 states and 54201 transitions. [2021-11-12 23:09:37,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-12 23:09:37,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:37,374 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:37,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:37,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable264 [2021-11-12 23:09:37,591 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:37,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:37,591 INFO L85 PathProgramCache]: Analyzing trace with hash -404582765, now seen corresponding path program 1 times [2021-11-12 23:09:37,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:37,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518354054] [2021-11-12 23:09:37,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:37,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 23:09:37,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:37,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518354054] [2021-11-12 23:09:37,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518354054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:09:37,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:09:37,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:09:37,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205111275] [2021-11-12 23:09:37,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:37,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:09:37,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:37,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:09:37,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:09:37,667 INFO L87 Difference]: Start difference. First operand 42507 states and 54201 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:09:40,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:40,313 INFO L93 Difference]: Finished difference Result 70721 states and 89772 transitions. [2021-11-12 23:09:40,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:09:40,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 127 [2021-11-12 23:09:40,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:40,415 INFO L225 Difference]: With dead ends: 70721 [2021-11-12 23:09:40,415 INFO L226 Difference]: Without dead ends: 48109 [2021-11-12 23:09:40,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:09:40,451 INFO L933 BasicCegarLoop]: 3217 mSDtfsCounter, 3387 mSDsluCounter, 3455 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 297.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 6426 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.08ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 364.65ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:40,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3387 Valid, 6426 Invalid, 552 Unknown, 0 Unchecked, 9.08ms Time], IncrementalHoareTripleChecker [7 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 364.65ms Time] [2021-11-12 23:09:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48109 states. [2021-11-12 23:09:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48109 to 47239. [2021-11-12 23:09:43,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47239 states, 39897 states have (on average 1.2700954959019475) internal successors, (50673), 40013 states have internal predecessors, (50673), 4034 states have call successors, (4034), 3294 states have call predecessors, (4034), 3306 states have return successors, (4466), 3932 states have call predecessors, (4466), 4034 states have call successors, (4466) [2021-11-12 23:09:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47239 states to 47239 states and 59173 transitions. [2021-11-12 23:09:43,156 INFO L78 Accepts]: Start accepts. Automaton has 47239 states and 59173 transitions. Word has length 127 [2021-11-12 23:09:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:43,156 INFO L470 AbstractCegarLoop]: Abstraction has 47239 states and 59173 transitions. [2021-11-12 23:09:43,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:09:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 47239 states and 59173 transitions. [2021-11-12 23:09:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-12 23:09:43,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:43,184 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:43,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-11-12 23:09:43,184 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:43,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:43,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1200433803, now seen corresponding path program 1 times [2021-11-12 23:09:43,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:43,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755231612] [2021-11-12 23:09:43,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:43,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-12 23:09:43,255 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:43,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755231612] [2021-11-12 23:09:43,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755231612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:09:43,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:09:43,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-12 23:09:43,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031435018] [2021-11-12 23:09:43,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:43,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:09:43,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:09:43,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:09:43,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:09:43,257 INFO L87 Difference]: Start difference. First operand 47239 states and 59173 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:09:47,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:47,230 INFO L93 Difference]: Finished difference Result 88669 states and 110678 transitions. [2021-11-12 23:09:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:09:47,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 128 [2021-11-12 23:09:47,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:47,358 INFO L225 Difference]: With dead ends: 88669 [2021-11-12 23:09:47,358 INFO L226 Difference]: Without dead ends: 63381 [2021-11-12 23:09:47,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:09:47,390 INFO L933 BasicCegarLoop]: 3238 mSDtfsCounter, 126 mSDsluCounter, 6781 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 404.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 9551 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.83ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 497.98ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:47,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 9551 Invalid, 871 Unknown, 0 Unchecked, 10.83ms Time], IncrementalHoareTripleChecker [28 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 497.98ms Time] [2021-11-12 23:09:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63381 states. [2021-11-12 23:09:50,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63381 to 59970. [2021-11-12 23:09:50,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59970 states, 50154 states have (on average 1.2524025999920245) internal successors, (62813), 50258 states have internal predecessors, (62813), 5461 states have call successors, (5461), 4355 states have call predecessors, (5461), 4353 states have return successors, (6375), 5357 states have call predecessors, (6375), 5461 states have call successors, (6375) [2021-11-12 23:09:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59970 states to 59970 states and 74649 transitions. [2021-11-12 23:09:50,937 INFO L78 Accepts]: Start accepts. Automaton has 59970 states and 74649 transitions. Word has length 128 [2021-11-12 23:09:50,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:50,937 INFO L470 AbstractCegarLoop]: Abstraction has 59970 states and 74649 transitions. [2021-11-12 23:09:50,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:09:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 59970 states and 74649 transitions. [2021-11-12 23:09:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-12 23:09:50,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:50,967 INFO L514 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:50,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-11-12 23:09:50,967 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:50,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:50,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1549523097, now seen corresponding path program 1 times [2021-11-12 23:09:50,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:09:50,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286432036] [2021-11-12 23:09:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:50,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:09:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:09:51,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:09:51,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286432036] [2021-11-12 23:09:51,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286432036] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:51,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139084505] [2021-11-12 23:09:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:51,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:09:51,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:51,059 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:09:51,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c519761e-74b4-4f69-a797-82058a400c27/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-12 23:09:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:51,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:09:51,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 66 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 23:09:51,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-12 23:09:52,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139084505] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:09:52,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1446007995] [2021-11-12 23:09:52,153 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2021-11-12 23:09:52,154 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 23:09:52,154 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 23:09:52,155 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 23:09:52,155 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 23:09:52,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,343 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:09:52,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-12 23:09:52,344 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:09:52,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-12 23:09:52,349 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-11-12 23:09:52,361 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_10|], 21=[|v_#valid_11|]} [2021-11-12 23:09:52,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-12 23:09:52,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:09:52,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-12 23:09:52,381 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 23:09:52,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,393 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:09:52,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-12 23:09:52,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:09:52,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-12 23:09:52,427 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-12 23:09:52,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,439 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-11-12 23:09:52,450 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-12 23:09:52,450 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:247, output treesize:222 [2021-11-12 23:09:52,458 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-11-12 23:09:52,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-11-12 23:09:52,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:09:52,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:52,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:09:52,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,945 INFO L180 QuantifierPusher]: treesize reduction 285, result has 51.9 percent of original size [2021-11-12 23:09:52,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-11-12 23:09:52,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:52,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:53,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-12 23:09:53,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:53,055 INFO L185 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size 41 [2021-11-12 23:09:53,056 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:09:53,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,228 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:09:53,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:53,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-12 23:09:53,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:53,566 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-11-12 23:09:53,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:53,593 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-12 23:09:53,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:53,954 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-12 23:09:53,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:53,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:53,968 INFO L185 QuantifierPusher]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-11-12 23:09:53,971 INFO L180 QuantifierPusher]: treesize reduction 5, result has 95.5 percent of original size [2021-11-12 23:09:53,974 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.0 percent of original size 96 [2021-11-12 23:09:53,978 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.4 percent of original size [2021-11-12 23:09:53,988 INFO L185 QuantifierPusher]: treesize reduction 5, result has 96.1 percent of original size 124 [2021-11-12 23:09:53,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,046 INFO L185 QuantifierPusher]: treesize reduction 5, result has 94.3 percent of original size 82 [2021-11-12 23:09:54,050 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.0 percent of original size [2021-11-12 23:09:54,055 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.7 percent of original size 110 [2021-11-12 23:09:54,081 INFO L180 QuantifierPusher]: treesize reduction 9, result has 97.5 percent of original size [2021-11-12 23:09:54,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:09:54,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:09:54,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:54,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-11-12 23:09:54,135 INFO L180 QuantifierPusher]: treesize reduction 9, result has 97.5 percent of original size [2021-11-12 23:09:54,141 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:09:54,142 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:09:54,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:54,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:54,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,323 INFO L185 QuantifierPusher]: treesize reduction 40, result has 50.6 percent of original size 41 [2021-11-12 23:09:54,324 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:09:54,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,485 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2021-11-12 23:09:54,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,688 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:54,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:54,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:54,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-11-12 23:09:54,858 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:54,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-12 23:09:54,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:54,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,898 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 270 [2021-11-12 23:09:54,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:54,965 INFO L180 QuantifierPusher]: treesize reduction 14, result has 93.8 percent of original size [2021-11-12 23:09:54,970 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-11-12 23:09:54,978 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-12 23:09:54,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:54,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,991 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:54,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:54,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:54,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,044 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.6 percent of original size [2021-11-12 23:09:55,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:55,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,062 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:55,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:55,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:55,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:55,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,184 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.2 percent of original size [2021-11-12 23:09:55,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:09:55,205 INFO L180 QuantifierPusher]: treesize reduction 21, result has 93.9 percent of original size [2021-11-12 23:09:55,207 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:09:55,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:09:55,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:55,228 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.2 percent of original size [2021-11-12 23:09:55,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:09:55,247 INFO L180 QuantifierPusher]: treesize reduction 21, result has 93.9 percent of original size [2021-11-12 23:09:55,257 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:09:55,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:09:55,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:55,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,361 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.7 percent of original size [2021-11-12 23:09:55,369 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:55,373 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.2 percent of original size [2021-11-12 23:09:55,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:55,386 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.7 percent of original size [2021-11-12 23:09:55,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:55,399 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.2 percent of original size [2021-11-12 23:09:55,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-12 23:09:55,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,518 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.5 percent of original size [2021-11-12 23:09:55,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:55,529 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.9 percent of original size [2021-11-12 23:09:55,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-12 23:09:55,541 INFO L180 QuantifierPusher]: treesize reduction 12, result has 94.5 percent of original size [2021-11-12 23:09:55,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:55,551 INFO L180 QuantifierPusher]: treesize reduction 12, result has 95.9 percent of original size [2021-11-12 23:09:55,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-11-12 23:09:55,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,770 INFO L180 QuantifierPusher]: treesize reduction 20, result has 91.5 percent of original size [2021-11-12 23:09:55,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-12 23:09:55,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:55,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 283 [2021-11-12 23:09:55,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:55,832 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 283 [2021-11-12 23:09:55,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:55,918 INFO L180 QuantifierPusher]: treesize reduction 20, result has 92.6 percent of original size [2021-11-12 23:09:55,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-12 23:09:55,929 INFO L180 QuantifierPusher]: treesize reduction 8, result has 96.9 percent of original size [2021-11-12 23:09:55,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-12 23:09:55,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:55,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,969 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 307 [2021-11-12 23:09:55,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:55,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:55,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 307 [2021-11-12 23:09:55,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,069 INFO L180 QuantifierPusher]: treesize reduction 20, result has 92.3 percent of original size [2021-11-12 23:09:56,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-12 23:09:56,079 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.5 percent of original size [2021-11-12 23:09:56,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:56,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:56,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:56,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:56,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:56,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,174 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.9 percent of original size [2021-11-12 23:09:56,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:56,188 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:56,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:56,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:56,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:56,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:56,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:56,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:56,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:56,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,411 INFO L180 QuantifierPusher]: treesize reduction 18, result has 93.6 percent of original size [2021-11-12 23:09:56,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:09:56,442 INFO L180 QuantifierPusher]: treesize reduction 27, result has 92.9 percent of original size [2021-11-12 23:09:56,469 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:09:56,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:56,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:09:56,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:56,490 INFO L180 QuantifierPusher]: treesize reduction 18, result has 93.6 percent of original size [2021-11-12 23:09:56,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-12 23:09:56,534 INFO L180 QuantifierPusher]: treesize reduction 27, result has 92.9 percent of original size [2021-11-12 23:09:56,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 23:09:56,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:56,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-12 23:09:56,553 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:56,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,682 INFO L180 QuantifierPusher]: treesize reduction 18, result has 94.2 percent of original size [2021-11-12 23:09:56,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:56,701 INFO L180 QuantifierPusher]: treesize reduction 18, result has 93.6 percent of original size [2021-11-12 23:09:56,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:56,718 INFO L180 QuantifierPusher]: treesize reduction 18, result has 94.2 percent of original size [2021-11-12 23:09:56,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-12 23:09:56,736 INFO L180 QuantifierPusher]: treesize reduction 18, result has 93.6 percent of original size [2021-11-12 23:09:56,748 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:56,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:56,926 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.8 percent of original size [2021-11-12 23:09:56,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:56,946 INFO L180 QuantifierPusher]: treesize reduction 18, result has 94.5 percent of original size [2021-11-12 23:09:56,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-11-12 23:09:56,966 INFO L180 QuantifierPusher]: treesize reduction 18, result has 92.8 percent of original size [2021-11-12 23:09:56,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-12 23:09:56,988 INFO L180 QuantifierPusher]: treesize reduction 18, result has 94.5 percent of original size [2021-11-12 23:09:56,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-11-12 23:09:56,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 23:09:57,100 INFO L180 QuantifierPusher]: treesize reduction 26, result has 90.3 percent of original size [2021-11-12 23:09:57,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-12 23:09:57,115 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:57,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-11-12 23:09:57,126 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size