./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH --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 11dad238eb84914335efd29047a947def7a0694fdab4be8f7a4064bc8cfe8e52 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:37:14,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:37:14,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:37:14,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:37:14,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:37:14,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:37:14,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:37:14,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:37:14,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:37:14,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:37:14,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:37:14,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:37:14,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:37:14,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:37:14,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:37:14,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:37:14,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:37:14,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:37:14,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:37:14,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:37:14,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:37:14,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:37:14,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:37:14,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:37:14,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:37:14,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:37:14,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:37:14,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:37:14,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:37:14,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:37:14,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:37:14,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:37:14,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:37:14,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:37:14,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:37:14,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:37:14,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:37:14,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:37:14,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:37:14,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:37:14,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:37:14,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:37:14,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:37:14,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:37:14,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:37:14,639 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:37:14,639 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:37:14,639 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:37:14,639 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:37:14,639 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:37:14,640 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:37:14,640 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:37:14,640 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:37:14,640 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:37:14,640 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:37:14,641 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:37:14,641 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:37:14,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:37:14,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:37:14,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:37:14,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:37:14,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:37:14,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:37:14,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:37:14,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:37:14,643 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:37:14,643 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:37:14,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:37:14,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:37:14,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:37:14,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:37:14,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:37:14,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:37:14,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:37:14,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:37:14,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:37:14,645 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:37:14,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:37:14,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:37:14,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:37:14,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:37:14,646 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_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11dad238eb84914335efd29047a947def7a0694fdab4be8f7a4064bc8cfe8e52 [2021-11-03 04:37:14,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:37:14,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:37:14,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:37:14,913 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:37:14,914 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:37:14,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-11-03 04:37:14,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data/08f767619/3cf9035b5ef9442ba209ad3b7761c868/FLAGc3044b858 [2021-11-03 04:37:15,411 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:37:15,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-11-03 04:37:15,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data/08f767619/3cf9035b5ef9442ba209ad3b7761c868/FLAGc3044b858 [2021-11-03 04:37:15,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data/08f767619/3cf9035b5ef9442ba209ad3b7761c868 [2021-11-03 04:37:15,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:37:15,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:37:15,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:37:15,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:37:15,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:37:15,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:37:15" (1/1) ... [2021-11-03 04:37:15,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c744777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:15, skipping insertion in model container [2021-11-03 04:37:15,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:37:15" (1/1) ... [2021-11-03 04:37:15,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:37:16,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:37:16,236 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_6cc8145b-6449-4ff2-981f-f7bcd3da8979/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-11-03 04:37:16,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:37:16,262 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:37:16,380 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_6cc8145b-6449-4ff2-981f-f7bcd3da8979/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-11-03 04:37:16,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:37:16,398 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:37:16,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16 WrapperNode [2021-11-03 04:37:16,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:37:16,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:37:16,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:37:16,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:37:16,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:37:16,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:37:16,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:37:16,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:37:16,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:37:16,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:37:16,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:37:16,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:37:16,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (1/1) ... [2021-11-03 04:37:16,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:37:16,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:37:16,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:37:16,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:37:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:37:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:37:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:37:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:37:16,746 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:37:17,240 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-03 04:37:17,240 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-03 04:37:17,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:37:17,651 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 04:37:17,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:37:17 BoogieIcfgContainer [2021-11-03 04:37:17,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:37:17,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:37:17,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:37:17,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:37:17,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:37:15" (1/3) ... [2021-11-03 04:37:17,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a59a62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:37:17, skipping insertion in model container [2021-11-03 04:37:17,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:16" (2/3) ... [2021-11-03 04:37:17,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a59a62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:37:17, skipping insertion in model container [2021-11-03 04:37:17,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:37:17" (3/3) ... [2021-11-03 04:37:17,667 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2021-11-03 04:37:17,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:37:17,673 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:37:17,729 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:37:17,735 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 [2021-11-03 04:37:17,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 04:37:17,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:17,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 04:37:17,756 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:17,756 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:37:17,757 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:17,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:17,762 INFO L85 PathProgramCache]: Analyzing trace with hash 70311567, now seen corresponding path program 1 times [2021-11-03 04:37:17,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:17,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316835344] [2021-11-03 04:37:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:17,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:17,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:37:17,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:17,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316835344] [2021-11-03 04:37:17,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316835344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:17,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:17,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:37:17,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448738730] [2021-11-03 04:37:17,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:17,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:17,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:17,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:17,955 INFO L87 Difference]: Start difference. First operand has 84 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 83 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:18,075 INFO L93 Difference]: Finished difference Result 169 states and 293 transitions. [2021-11-03 04:37:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:18,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-03 04:37:18,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:18,086 INFO L225 Difference]: With dead ends: 169 [2021-11-03 04:37:18,086 INFO L226 Difference]: Without dead ends: 83 [2021-11-03 04:37:18,089 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:18,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-03 04:37:18,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-03 04:37:18,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 82 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-11-03 04:37:18,125 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 120 transitions. Word has length 19 [2021-11-03 04:37:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:18,126 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-11-03 04:37:18,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,126 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 120 transitions. [2021-11-03 04:37:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 04:37:18,127 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:18,128 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 04:37:18,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:37:18,128 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:18,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:18,129 INFO L85 PathProgramCache]: Analyzing trace with hash 205833436, now seen corresponding path program 1 times [2021-11-03 04:37:18,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:18,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767408359] [2021-11-03 04:37:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:18,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:37:18,212 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:18,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767408359] [2021-11-03 04:37:18,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767408359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:18,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:18,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:37:18,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975369709] [2021-11-03 04:37:18,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:18,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:18,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:18,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:18,219 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:18,372 INFO L93 Difference]: Finished difference Result 178 states and 261 transitions. [2021-11-03 04:37:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:18,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-03 04:37:18,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:18,378 INFO L225 Difference]: With dead ends: 178 [2021-11-03 04:37:18,378 INFO L226 Difference]: Without dead ends: 98 [2021-11-03 04:37:18,380 INFO L786 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 [2021-11-03 04:37:18,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-03 04:37:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2021-11-03 04:37:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.431578947368421) internal successors, (136), 95 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 136 transitions. [2021-11-03 04:37:18,395 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 136 transitions. Word has length 28 [2021-11-03 04:37:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:18,396 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 136 transitions. [2021-11-03 04:37:18,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,396 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 136 transitions. [2021-11-03 04:37:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-03 04:37:18,397 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:18,398 INFO L513 BasicCegarLoop]: trace histogram [3, 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] [2021-11-03 04:37:18,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:37:18,398 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:18,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash -686300563, now seen corresponding path program 1 times [2021-11-03 04:37:18,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:18,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087127940] [2021-11-03 04:37:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:18,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:37:18,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:18,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087127940] [2021-11-03 04:37:18,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087127940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:18,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:18,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:37:18,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241949285] [2021-11-03 04:37:18,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:18,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:18,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:18,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:18,498 INFO L87 Difference]: Start difference. First operand 96 states and 136 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:18,641 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2021-11-03 04:37:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:18,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-03 04:37:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:18,644 INFO L225 Difference]: With dead ends: 206 [2021-11-03 04:37:18,645 INFO L226 Difference]: Without dead ends: 113 [2021-11-03 04:37:18,647 INFO L786 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 [2021-11-03 04:37:18,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-03 04:37:18,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-11-03 04:37:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4) internal successors, (154), 110 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 154 transitions. [2021-11-03 04:37:18,657 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 154 transitions. Word has length 39 [2021-11-03 04:37:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:18,658 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 154 transitions. [2021-11-03 04:37:18,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 154 transitions. [2021-11-03 04:37:18,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 04:37:18,662 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:18,662 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-03 04:37:18,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:37:18,663 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:18,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1967255269, now seen corresponding path program 1 times [2021-11-03 04:37:18,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:18,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325920549] [2021-11-03 04:37:18,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:18,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 04:37:18,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:18,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325920549] [2021-11-03 04:37:18,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325920549] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:37:18,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837215791] [2021-11-03 04:37:18,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:18,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:37:18,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:37:18,783 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:37:18,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 04:37:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:18,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:37:18,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-03 04:37:19,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:19,484 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-03 04:37:19,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837215791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:19,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-11-03 04:37:19,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 9 [2021-11-03 04:37:19,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532270079] [2021-11-03 04:37:19,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:37:19,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:19,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:37:19,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:37:19,488 INFO L87 Difference]: Start difference. First operand 111 states and 154 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:19,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:19,781 INFO L93 Difference]: Finished difference Result 312 states and 467 transitions. [2021-11-03 04:37:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:37:19,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-03 04:37:19,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:19,783 INFO L225 Difference]: With dead ends: 312 [2021-11-03 04:37:19,784 INFO L226 Difference]: Without dead ends: 203 [2021-11-03 04:37:19,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:37:19,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-03 04:37:19,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2021-11-03 04:37:19,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:19,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2021-11-03 04:37:19,798 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 52 [2021-11-03 04:37:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:19,798 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2021-11-03 04:37:19,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2021-11-03 04:37:19,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 04:37:19,801 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:19,801 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-03 04:37:19,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:20,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:37:20,016 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:20,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:20,016 INFO L85 PathProgramCache]: Analyzing trace with hash -672239485, now seen corresponding path program 1 times [2021-11-03 04:37:20,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:20,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757063971] [2021-11-03 04:37:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:20,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-03 04:37:20,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:20,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757063971] [2021-11-03 04:37:20,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757063971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:20,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:20,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:37:20,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053455501] [2021-11-03 04:37:20,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:20,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:20,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:20,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:20,083 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:20,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:20,193 INFO L93 Difference]: Finished difference Result 390 states and 543 transitions. [2021-11-03 04:37:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:20,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-03 04:37:20,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:20,196 INFO L225 Difference]: With dead ends: 390 [2021-11-03 04:37:20,196 INFO L226 Difference]: Without dead ends: 207 [2021-11-03 04:37:20,197 INFO L786 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 [2021-11-03 04:37:20,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-03 04:37:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2021-11-03 04:37:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.357843137254902) internal successors, (277), 204 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2021-11-03 04:37:20,207 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 67 [2021-11-03 04:37:20,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:20,208 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2021-11-03 04:37:20,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2021-11-03 04:37:20,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-03 04:37:20,211 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:20,211 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-11-03 04:37:20,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 04:37:20,211 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:20,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1956777873, now seen corresponding path program 1 times [2021-11-03 04:37:20,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:20,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878870223] [2021-11-03 04:37:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:20,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:37:20,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:20,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878870223] [2021-11-03 04:37:20,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878870223] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 04:37:20,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050021441] [2021-11-03 04:37:20,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:20,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:37:20,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:37:20,452 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:37:20,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 04:37:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:20,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:37:20,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:20,851 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-03 04:37:20,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-03 04:37:21,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050021441] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:37:21,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2051661566] [2021-11-03 04:37:21,196 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-11-03 04:37:21,196 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 04:37:21,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 04:37:21,207 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 04:37:21,208 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 04:37:21,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,374 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:37:21,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-03 04:37:21,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:37:21,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 04:37:21,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 323 [2021-11-03 04:37:21,443 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 21=[|v_#valid_18|]} [2021-11-03 04:37:21,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,486 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 [2021-11-03 04:37:21,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:37:21,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:37:21,489 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 04:37:21,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,519 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 [2021-11-03 04:37:21,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:37:21,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:37:21,522 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 04:37:21,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,553 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 [2021-11-03 04:37:21,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:37:21,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 04:37:21,561 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-03 04:37:21,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:21,688 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,742 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 [2021-11-03 04:37:21,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:37:21,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:37:21,747 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-03 04:37:21,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,793 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 [2021-11-03 04:37:21,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:37:21,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:37:21,799 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 04:37:21,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:21,832 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 [2021-11-03 04:37:21,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,835 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:37:21,836 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,837 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 04:37:21,837 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 04:37:21,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:21,930 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:21,979 INFO L180 QuantifierPusher]: treesize reduction 18, result has 97.8 percent of original size [2021-11-03 04:37:22,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 807 [2021-11-03 04:37:22,005 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-11-03 04:37:22,006 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:900, output treesize:807 [2021-11-03 04:37:22,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:22,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 808 [2021-11-03 04:37:22,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:22,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 836 [2021-11-03 04:37:22,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:22,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 834 [2021-11-03 04:37:22,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:22,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 834 [2021-11-03 04:37:22,313 INFO L180 QuantifierPusher]: treesize reduction 20, result has 97.8 percent of original size [2021-11-03 04:37:22,318 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 04:37:22,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:22,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 774 [2021-11-03 04:37:22,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 830 [2021-11-03 04:37:22,481 INFO L180 QuantifierPusher]: treesize reduction 6, result has 99.3 percent of original size [2021-11-03 04:37:22,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 828 [2021-11-03 04:37:22,541 INFO L180 QuantifierPusher]: treesize reduction 848, result has 0.1 percent of original size [2021-11-03 04:37:22,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-03 04:37:22,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:22,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,076 INFO L180 QuantifierPusher]: treesize reduction 66, result has 77.9 percent of original size [2021-11-03 04:37:23,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:23,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:23,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:23,122 INFO L180 QuantifierPusher]: treesize reduction 47, result has 84.5 percent of original size [2021-11-03 04:37:23,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-03 04:37:23,162 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-11-03 04:37:23,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-11-03 04:37:23,202 INFO L180 QuantifierPusher]: treesize reduction 39, result has 86.0 percent of original size [2021-11-03 04:37:23,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-11-03 04:37:23,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:23,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 04:37:23,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,387 INFO L180 QuantifierPusher]: treesize reduction 31, result has 89.2 percent of original size [2021-11-03 04:37:23,402 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-03 04:37:23,414 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-11-03 04:37:23,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-11-03 04:37:23,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,592 INFO L180 QuantifierPusher]: treesize reduction 23, result has 92.2 percent of original size [2021-11-03 04:37:23,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-11-03 04:37:23,616 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-11-03 04:37:23,623 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-03 04:37:23,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,763 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.8 percent of original size [2021-11-03 04:37:23,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:23,781 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:23,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:23,794 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:23,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-03 04:37:23,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:23,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-03 04:37:23,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:23,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,251 INFO L180 QuantifierPusher]: treesize reduction 60, result has 79.5 percent of original size [2021-11-03 04:37:24,257 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:24,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:24,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:24,294 INFO L180 QuantifierPusher]: treesize reduction 47, result has 84.5 percent of original size [2021-11-03 04:37:24,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-03 04:37:24,314 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-11-03 04:37:24,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-11-03 04:37:24,331 INFO L180 QuantifierPusher]: treesize reduction 39, result has 86.0 percent of original size [2021-11-03 04:37:24,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-11-03 04:37:24,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:24,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 04:37:24,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,480 INFO L180 QuantifierPusher]: treesize reduction 31, result has 89.2 percent of original size [2021-11-03 04:37:24,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-11-03 04:37:24,502 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-11-03 04:37:24,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-11-03 04:37:24,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,656 INFO L180 QuantifierPusher]: treesize reduction 23, result has 92.2 percent of original size [2021-11-03 04:37:24,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-11-03 04:37:24,680 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.7 percent of original size [2021-11-03 04:37:24,689 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-03 04:37:24,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,825 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.8 percent of original size [2021-11-03 04:37:24,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:24,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:24,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:24,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:24,860 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-03 04:37:24,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:24,875 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-03 04:37:24,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:24,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,135 INFO L180 QuantifierPusher]: treesize reduction 60, result has 79.5 percent of original size [2021-11-03 04:37:25,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:25,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,360 INFO L180 QuantifierPusher]: treesize reduction 45, result has 83.5 percent of original size [2021-11-03 04:37:25,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-11-03 04:37:25,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:25,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-11-03 04:37:25,427 INFO L180 QuantifierPusher]: treesize reduction 73, result has 77.0 percent of original size [2021-11-03 04:37:25,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:25,456 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-11-03 04:37:25,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-03 04:37:25,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,587 INFO L180 QuantifierPusher]: treesize reduction 81, result has 73.8 percent of original size [2021-11-03 04:37:25,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-11-03 04:37:25,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:37:25,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-11-03 04:37:25,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,826 INFO L180 QuantifierPusher]: treesize reduction 97, result has 70.2 percent of original size [2021-11-03 04:37:25,832 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-11-03 04:37:25,854 INFO L180 QuantifierPusher]: treesize reduction 89, result has 73.3 percent of original size [2021-11-03 04:37:25,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-03 04:37:25,875 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.5 percent of original size [2021-11-03 04:37:25,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 232 [2021-11-03 04:37:25,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:25,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,005 INFO L180 QuantifierPusher]: treesize reduction 65, result has 80.0 percent of original size [2021-11-03 04:37:26,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-03 04:37:26,031 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size [2021-11-03 04:37:26,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-03 04:37:26,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:37:26,123 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 04:37:40,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:37:40,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 04:37:40,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 7 [2021-11-03 04:37:40,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334745719] [2021-11-03 04:37:40,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:37:40,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:37:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1338, Unknown=0, NotChecked=0, Total=1560 [2021-11-03 04:37:40,669 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:40,744 INFO L93 Difference]: Finished difference Result 649 states and 873 transitions. [2021-11-03 04:37:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:37:40,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-03 04:37:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:40,755 INFO L225 Difference]: With dead ends: 649 [2021-11-03 04:37:40,756 INFO L226 Difference]: Without dead ends: 647 [2021-11-03 04:37:40,757 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 210 SyntacticMatches, 10 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=222, Invalid=1338, Unknown=0, NotChecked=0, Total=1560 [2021-11-03 04:37:40,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2021-11-03 04:37:40,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 566. [2021-11-03 04:37:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 565 states have (on average 1.3716814159292035) internal successors, (775), 565 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 775 transitions. [2021-11-03 04:37:40,777 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 775 transitions. Word has length 85 [2021-11-03 04:37:40,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:40,777 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 775 transitions. [2021-11-03 04:37:40,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:40,778 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 775 transitions. [2021-11-03 04:37:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-03 04:37:40,782 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:40,782 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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] [2021-11-03 04:37:40,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:40,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:37:41,000 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:41,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1110870099, now seen corresponding path program 1 times [2021-11-03 04:37:41,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:41,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492109551] [2021-11-03 04:37:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:41,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-03 04:37:41,124 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:41,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492109551] [2021-11-03 04:37:41,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492109551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:41,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:41,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:37:41,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004525446] [2021-11-03 04:37:41,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:41,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:41,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:41,127 INFO L87 Difference]: Start difference. First operand 566 states and 775 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:41,265 INFO L93 Difference]: Finished difference Result 1260 states and 1782 transitions. [2021-11-03 04:37:41,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:41,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-03 04:37:41,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:41,281 INFO L225 Difference]: With dead ends: 1260 [2021-11-03 04:37:41,281 INFO L226 Difference]: Without dead ends: 694 [2021-11-03 04:37:41,282 INFO L786 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 [2021-11-03 04:37:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2021-11-03 04:37:41,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 629. [2021-11-03 04:37:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 1.3678343949044587) internal successors, (859), 628 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 859 transitions. [2021-11-03 04:37:41,306 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 859 transitions. Word has length 143 [2021-11-03 04:37:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:41,307 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 859 transitions. [2021-11-03 04:37:41,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,308 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 859 transitions. [2021-11-03 04:37:41,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-03 04:37:41,314 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:41,314 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2021-11-03 04:37:41,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-11-03 04:37:41,315 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:41,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:41,316 INFO L85 PathProgramCache]: Analyzing trace with hash 990684674, now seen corresponding path program 2 times [2021-11-03 04:37:41,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:41,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130364882] [2021-11-03 04:37:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:41,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-03 04:37:41,395 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:41,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130364882] [2021-11-03 04:37:41,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130364882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:41,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:41,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:37:41,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614123214] [2021-11-03 04:37:41,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:41,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:41,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:41,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:41,399 INFO L87 Difference]: Start difference. First operand 629 states and 859 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:41,532 INFO L93 Difference]: Finished difference Result 1447 states and 2059 transitions. [2021-11-03 04:37:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:41,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2021-11-03 04:37:41,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:41,539 INFO L225 Difference]: With dead ends: 1447 [2021-11-03 04:37:41,539 INFO L226 Difference]: Without dead ends: 770 [2021-11-03 04:37:41,540 INFO L786 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 [2021-11-03 04:37:41,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2021-11-03 04:37:41,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 743. [2021-11-03 04:37:41,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.3517520215633423) internal successors, (1003), 742 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1003 transitions. [2021-11-03 04:37:41,573 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1003 transitions. Word has length 152 [2021-11-03 04:37:41,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:41,574 INFO L470 AbstractCegarLoop]: Abstraction has 743 states and 1003 transitions. [2021-11-03 04:37:41,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1003 transitions. [2021-11-03 04:37:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-03 04:37:41,577 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:41,577 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-11-03 04:37:41,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-11-03 04:37:41,578 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash -802224645, now seen corresponding path program 1 times [2021-11-03 04:37:41,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:41,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906002058] [2021-11-03 04:37:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:41,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:41,653 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-03 04:37:41,653 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:37:41,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906002058] [2021-11-03 04:37:41,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906002058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:41,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:41,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:37:41,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732407379] [2021-11-03 04:37:41,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:41,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:37:41,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:41,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:41,656 INFO L87 Difference]: Start difference. First operand 743 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:41,695 INFO L93 Difference]: Finished difference Result 1225 states and 1656 transitions. [2021-11-03 04:37:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:41,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2021-11-03 04:37:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:41,701 INFO L225 Difference]: With dead ends: 1225 [2021-11-03 04:37:41,701 INFO L226 Difference]: Without dead ends: 743 [2021-11-03 04:37:41,702 INFO L786 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 [2021-11-03 04:37:41,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-11-03 04:37:41,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2021-11-03 04:37:41,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.349056603773585) internal successors, (1001), 742 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1001 transitions. [2021-11-03 04:37:41,734 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1001 transitions. Word has length 163 [2021-11-03 04:37:41,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:41,735 INFO L470 AbstractCegarLoop]: Abstraction has 743 states and 1001 transitions. [2021-11-03 04:37:41,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:41,735 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1001 transitions. [2021-11-03 04:37:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-03 04:37:41,738 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:41,739 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-11-03 04:37:41,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-11-03 04:37:41,739 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:41,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash 610286614, now seen corresponding path program 1 times [2021-11-03 04:37:41,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:37:41,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745785519] [2021-11-03 04:37:41,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:41,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:37:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:37:41,812 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:37:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:37:41,943 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 04:37:41,943 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:37:41,944 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:37:41,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-11-03 04:37:41,949 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:37:41,952 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:37:42,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:37:42 BoogieIcfgContainer [2021-11-03 04:37:42,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:37:42,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:37:42,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:37:42,091 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:37:42,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:37:17" (3/4) ... [2021-11-03 04:37:42,094 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 04:37:42,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:37:42,095 INFO L168 Benchmark]: Toolchain (without parser) took 26151.75 ms. Allocated memory was 86.0 MB in the beginning and 249.6 MB in the end (delta: 163.6 MB). Free memory was 49.3 MB in the beginning and 80.9 MB in the end (delta: -31.6 MB). Peak memory consumption was 132.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:37:42,096 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:37:42,096 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.07 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 49.0 MB in the beginning and 84.0 MB in the end (delta: -34.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:37:42,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.45 ms. Allocated memory is still 111.1 MB. Free memory was 84.0 MB in the beginning and 81.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:37:42,097 INFO L168 Benchmark]: Boogie Preprocessor took 68.49 ms. Allocated memory is still 111.1 MB. Free memory was 81.4 MB in the beginning and 79.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:37:42,097 INFO L168 Benchmark]: RCFGBuilder took 1103.80 ms. Allocated memory is still 111.1 MB. Free memory was 79.3 MB in the beginning and 74.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:37:42,098 INFO L168 Benchmark]: TraceAbstraction took 24432.82 ms. Allocated memory was 111.1 MB in the beginning and 249.6 MB in the end (delta: 138.4 MB). Free memory was 73.4 MB in the beginning and 80.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 131.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:37:42,098 INFO L168 Benchmark]: Witness Printer took 3.95 ms. Allocated memory is still 249.6 MB. Free memory is still 80.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:37:42,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 452.07 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 49.0 MB in the beginning and 84.0 MB in the end (delta: -34.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.45 ms. Allocated memory is still 111.1 MB. Free memory was 84.0 MB in the beginning and 81.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.49 ms. Allocated memory is still 111.1 MB. Free memory was 81.4 MB in the beginning and 79.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1103.80 ms. Allocated memory is still 111.1 MB. Free memory was 79.3 MB in the beginning and 74.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24432.82 ms. Allocated memory was 111.1 MB in the beginning and 249.6 MB in the end (delta: 138.4 MB). Free memory was 73.4 MB in the beginning and 80.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 131.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.95 ms. Allocated memory is still 249.6 MB. Free memory is still 80.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseXor at line 358. Possible FailurePath: [L619] int __retres1 ; [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] unsigned int s__version = __VERIFIER_nondet_uint(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect ; [L29] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L30] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L54] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int __retres59 ; [L68] s__state = 12292 [L69] blastFlag = 0 [L70] tmp = __VERIFIER_nondet_int() [L71] cb = 0 [L72] ret = -1 [L73] skip = 0 [L74] tmp___0 = 0 [L75] COND FALSE !(s__info_callback != 0) [L78] COND FALSE !(s__ctx__info_callback != 0) [L84] s__in_handshake = s__in_handshake + 1 [L85] COND TRUE tmp___1 - 12288 [L86] COND FALSE !(tmp___2 - 16384) [L95] COND TRUE 1 [L97] state = s__state [L98] COND TRUE s__state == 12292 [L201] s__new_session = 1 [L202] s__state = 4096 [L203] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L208] s__server = 0 [L209] COND FALSE !(cb != 0) [L214] COND FALSE !(s__version - 65280 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L239] COND FALSE !(! tmp___4) [L245] COND FALSE !(! tmp___5) [L251] s__state = 4368 [L252] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L253] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND TRUE s__state == 4368 [L257] s__shutdown = 0 [L258] ret = __VERIFIER_nondet_int() [L259] COND TRUE blastFlag == 0 [L260] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] s__init_num = 0 [L275] COND TRUE s__bbio != s__wbio [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND TRUE blastFlag == 1 [L285] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L294] COND FALSE !(\read(s__hit)) [L297] s__state = 4400 [L299] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND TRUE s__state == 4400 [L303] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L306] ret = __VERIFIER_nondet_int() [L307] COND TRUE blastFlag == 2 [L308] blastFlag = 3 [L312] COND FALSE !(ret <= 0) [L318] ag_Y = 61087 [L319] s__state = 4416 [L320] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND TRUE s__state == 4416 [L324] ret = __VERIFIER_nondet_int() [L325] COND TRUE blastFlag == 3 [L326] blastFlag = 4 [L330] COND FALSE !(ret <= 0) [L335] s__state = 4432 [L336] ag_X = (unsigned short)65535 [L337] s__init_num = 0 [L338] COND FALSE !(! tmp___6) [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND FALSE !(s__state == 4416) [L134] COND FALSE !(s__state == 4417) [L137] COND TRUE s__state == 4432 [L347] ret = __VERIFIER_nondet_int() [L348] COND FALSE !(blastFlag == 5) [L353] COND FALSE !(ret <= 0) [L358] s__state = ag_X ^ ag_Y [L359] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND TRUE s__state == 4368 [L257] s__shutdown = 0 [L258] ret = __VERIFIER_nondet_int() [L259] COND FALSE !(blastFlag == 0) [L262] COND TRUE blastFlag == 4 [L263] blastFlag = 5 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] s__init_num = 0 [L275] COND TRUE s__bbio != s__wbio [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND FALSE !(blastFlag == 1) [L289] COND FALSE !(ret <= 0) [L294] COND FALSE !(\read(s__hit)) [L297] s__state = 4400 [L299] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND TRUE s__state == 4400 [L303] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L306] ret = __VERIFIER_nondet_int() [L307] COND FALSE !(blastFlag == 2) [L312] COND FALSE !(ret <= 0) [L318] ag_Y = 61087 [L319] s__state = 4416 [L320] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND TRUE s__state == 4416 [L324] ret = __VERIFIER_nondet_int() [L325] COND FALSE !(blastFlag == 3) [L330] COND FALSE !(ret <= 0) [L335] s__state = 4432 [L336] ag_X = (unsigned short)65535 [L337] s__init_num = 0 [L338] COND FALSE !(! tmp___6) [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND FALSE !(s__state == 4416) [L134] COND FALSE !(s__state == 4417) [L137] COND TRUE s__state == 4432 [L347] ret = __VERIFIER_nondet_int() [L348] COND TRUE blastFlag == 5 [L610] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.2s, OverallIterations: 10, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1223 SDtfs, 711 SDslu, 1071 SDs, 0 SdLazy, 921 SolverSat, 186 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 384 GetRequests, 322 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=8, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 196 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1049 NumberOfCodeBlocks, 1049 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1009 ConstructedInterpolants, 0 QuantifiedInterpolants, 2915 SizeOfPredicates, 1 NumberOfNonLiveVariables, 418 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 1708/1967 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 04:37:42,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH --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 11dad238eb84914335efd29047a947def7a0694fdab4be8f7a4064bc8cfe8e52 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:37:44,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:37:44,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:37:44,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:37:44,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:37:44,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:37:44,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:37:44,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:37:44,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:37:44,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:37:44,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:37:44,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:37:44,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:37:44,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:37:44,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:37:44,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:37:44,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:37:44,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:37:44,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:37:44,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:37:44,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:37:44,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:37:44,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:37:44,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:37:44,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:37:44,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:37:44,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:37:44,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:37:44,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:37:44,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:37:44,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:37:44,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:37:44,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:37:44,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:37:44,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:37:44,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:37:44,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:37:44,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:37:44,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:37:44,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:37:44,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:37:44,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:37:44,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:37:44,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:37:44,685 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:37:44,685 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:37:44,685 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:37:44,686 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:37:44,686 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:37:44,686 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:37:44,687 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:37:44,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:37:44,690 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:37:44,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:37:44,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:37:44,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:37:44,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:37:44,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:37:44,691 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:37:44,691 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:37:44,692 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:37:44,692 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:37:44,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:37:44,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:37:44,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:37:44,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:37:44,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:37:44,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:37:44,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:37:44,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:37:44,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:37:44,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:37:44,694 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:37:44,695 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:37:44,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:37:44,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:37:44,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:37:44,696 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11dad238eb84914335efd29047a947def7a0694fdab4be8f7a4064bc8cfe8e52 [2021-11-03 04:37:45,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:37:45,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:37:45,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:37:45,066 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:37:45,067 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:37:45,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-11-03 04:37:45,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data/720f74b7d/d781dd2b03df48f6a26c29581b788206/FLAG521960ce8 [2021-11-03 04:37:45,637 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:37:45,638 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2021-11-03 04:37:45,654 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data/720f74b7d/d781dd2b03df48f6a26c29581b788206/FLAG521960ce8 [2021-11-03 04:37:45,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/data/720f74b7d/d781dd2b03df48f6a26c29581b788206 [2021-11-03 04:37:45,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:37:45,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:37:45,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:37:45,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:37:45,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:37:45,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:37:45" (1/1) ... [2021-11-03 04:37:45,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554d1286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:45, skipping insertion in model container [2021-11-03 04:37:45,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:37:45" (1/1) ... [2021-11-03 04:37:45,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:37:46,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:37:46,249 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_6cc8145b-6449-4ff2-981f-f7bcd3da8979/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-11-03 04:37:46,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:37:46,267 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:37:46,369 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_6cc8145b-6449-4ff2-981f-f7bcd3da8979/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c[37270,37283] [2021-11-03 04:37:46,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:37:46,386 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:37:46,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46 WrapperNode [2021-11-03 04:37:46,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:37:46,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:37:46,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:37:46,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:37:46,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:37:46,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:37:46,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:37:46,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:37:46,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:37:46,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:37:46,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:37:46,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:37:46,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (1/1) ... [2021-11-03 04:37:46,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:37:46,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:37:46,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:37:46,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:37:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:37:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:37:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:37:46,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:37:46,716 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:37:47,236 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-03 04:37:47,237 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-03 04:37:47,245 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:37:47,245 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 04:37:47,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:37:47 BoogieIcfgContainer [2021-11-03 04:37:47,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:37:47,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:37:47,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:37:47,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:37:47,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:37:45" (1/3) ... [2021-11-03 04:37:47,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459964d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:37:47, skipping insertion in model container [2021-11-03 04:37:47,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:37:46" (2/3) ... [2021-11-03 04:37:47,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459964d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:37:47, skipping insertion in model container [2021-11-03 04:37:47,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:37:47" (3/3) ... [2021-11-03 04:37:47,256 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2021-11-03 04:37:47,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:37:47,261 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:37:47,309 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:37:47,315 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 [2021-11-03 04:37:47,316 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 04:37:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 04:37:47,340 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:47,341 INFO L513 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] [2021-11-03 04:37:47,342 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:47,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:47,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2021-11-03 04:37:47,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:47,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109234989] [2021-11-03 04:37:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:47,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:47,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:47,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:47,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:37:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:47,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:47,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:37:47,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:47,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:37:47,831 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:47,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109234989] [2021-11-03 04:37:47,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109234989] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:47,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:47,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:37:47,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141274286] [2021-11-03 04:37:47,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:47,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:47,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:47,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:47,863 INFO L87 Difference]: Start difference. First operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:48,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:48,090 INFO L93 Difference]: Finished difference Result 246 states and 421 transitions. [2021-11-03 04:37:48,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:48,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 04:37:48,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:48,105 INFO L225 Difference]: With dead ends: 246 [2021-11-03 04:37:48,106 INFO L226 Difference]: Without dead ends: 112 [2021-11-03 04:37:48,110 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-03 04:37:48,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-11-03 04:37:48,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:48,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2021-11-03 04:37:48,175 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2021-11-03 04:37:48,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:48,175 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2021-11-03 04:37:48,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:48,176 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2021-11-03 04:37:48,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:37:48,180 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:48,180 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:37:48,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:48,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:48,391 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:48,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:48,392 INFO L85 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2021-11-03 04:37:48,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:48,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587200251] [2021-11-03 04:37:48,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:48,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:48,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:48,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:48,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:37:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:48,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:48,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:37:48,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:37:48,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:48,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587200251] [2021-11-03 04:37:48,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587200251] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:48,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:48,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:37:48,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603815848] [2021-11-03 04:37:48,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:48,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:48,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:48,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:48,794 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:48,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:48,940 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2021-11-03 04:37:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:48,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-03 04:37:48,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:48,946 INFO L225 Difference]: With dead ends: 233 [2021-11-03 04:37:48,947 INFO L226 Difference]: Without dead ends: 131 [2021-11-03 04:37:48,949 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:48,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-03 04:37:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2021-11-03 04:37:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2021-11-03 04:37:48,978 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2021-11-03 04:37:48,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:48,978 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2021-11-03 04:37:48,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2021-11-03 04:37:48,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-03 04:37:48,984 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:48,985 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-03 04:37:48,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:49,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:49,197 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:49,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash 213639527, now seen corresponding path program 1 times [2021-11-03 04:37:49,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:49,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23683819] [2021-11-03 04:37:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:49,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:49,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:49,200 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:49,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:37:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:49,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:49,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:49,467 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:37:49,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 04:37:49,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:49,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23683819] [2021-11-03 04:37:49,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23683819] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:49,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:49,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:37:49,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571294778] [2021-11-03 04:37:49,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:49,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:49,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:49,597 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:49,737 INFO L93 Difference]: Finished difference Result 265 states and 400 transitions. [2021-11-03 04:37:49,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:49,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-03 04:37:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:49,740 INFO L225 Difference]: With dead ends: 265 [2021-11-03 04:37:49,740 INFO L226 Difference]: Without dead ends: 148 [2021-11-03 04:37:49,744 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:49,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-03 04:37:49,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2021-11-03 04:37:49,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2021-11-03 04:37:49,759 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2021-11-03 04:37:49,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:49,760 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2021-11-03 04:37:49,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:49,760 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2021-11-03 04:37:49,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 04:37:49,762 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:49,762 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-03 04:37:49,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:49,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:49,975 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:49,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:49,975 INFO L85 PathProgramCache]: Analyzing trace with hash 370823208, now seen corresponding path program 1 times [2021-11-03 04:37:49,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:49,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580275116] [2021-11-03 04:37:49,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:49,977 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:49,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:49,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:49,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:37:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:50,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:50,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-03 04:37:50,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-03 04:37:50,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:50,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580275116] [2021-11-03 04:37:50,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580275116] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:50,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:50,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:37:50,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798360387] [2021-11-03 04:37:50,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:37:50,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:50,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:37:50,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:37:50,571 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:50,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:50,825 INFO L93 Difference]: Finished difference Result 349 states and 534 transitions. [2021-11-03 04:37:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:37:50,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-03 04:37:50,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:50,828 INFO L225 Difference]: With dead ends: 349 [2021-11-03 04:37:50,828 INFO L226 Difference]: Without dead ends: 215 [2021-11-03 04:37:50,829 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:37:50,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-03 04:37:50,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 207. [2021-11-03 04:37:50,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.441747572815534) internal successors, (297), 206 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:50,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2021-11-03 04:37:50,843 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 67 [2021-11-03 04:37:50,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:50,844 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2021-11-03 04:37:50,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:50,844 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2021-11-03 04:37:50,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-03 04:37:50,846 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:50,846 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-03 04:37:50,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:51,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:51,058 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1528022105, now seen corresponding path program 1 times [2021-11-03 04:37:51,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:51,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922579580] [2021-11-03 04:37:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:51,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:51,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:51,061 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:51,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:37:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:51,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:51,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-03 04:37:51,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:51,597 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-03 04:37:51,597 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:51,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922579580] [2021-11-03 04:37:51,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922579580] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:51,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:51,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:37:51,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857780887] [2021-11-03 04:37:51,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:51,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:51,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:51,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:51,607 INFO L87 Difference]: Start difference. First operand 207 states and 297 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:51,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:51,753 INFO L93 Difference]: Finished difference Result 427 states and 620 transitions. [2021-11-03 04:37:51,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:51,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-03 04:37:51,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:51,755 INFO L225 Difference]: With dead ends: 427 [2021-11-03 04:37:51,756 INFO L226 Difference]: Without dead ends: 230 [2021-11-03 04:37:51,756 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:51,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-03 04:37:51,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2021-11-03 04:37:51,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4266666666666667) internal successors, (321), 225 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:51,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 321 transitions. [2021-11-03 04:37:51,782 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 321 transitions. Word has length 68 [2021-11-03 04:37:51,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:51,786 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 321 transitions. [2021-11-03 04:37:51,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 321 transitions. [2021-11-03 04:37:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-03 04:37:51,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:51,791 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-03 04:37:51,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 04:37:52,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:52,004 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:52,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:52,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1678422895, now seen corresponding path program 1 times [2021-11-03 04:37:52,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:52,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751605228] [2021-11-03 04:37:52,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:52,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:52,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:52,007 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:52,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:37:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:52,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:52,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-03 04:37:52,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-03 04:37:52,685 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:52,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751605228] [2021-11-03 04:37:52,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751605228] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:52,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:52,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:37:52,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214735709] [2021-11-03 04:37:52,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:52,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:52,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:52,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:52,687 INFO L87 Difference]: Start difference. First operand 226 states and 321 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:52,814 INFO L93 Difference]: Finished difference Result 466 states and 670 transitions. [2021-11-03 04:37:52,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:52,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-03 04:37:52,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:52,817 INFO L225 Difference]: With dead ends: 466 [2021-11-03 04:37:52,818 INFO L226 Difference]: Without dead ends: 250 [2021-11-03 04:37:52,818 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:52,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-03 04:37:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2021-11-03 04:37:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2021-11-03 04:37:52,829 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 84 [2021-11-03 04:37:52,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:52,829 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2021-11-03 04:37:52,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:52,830 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2021-11-03 04:37:52,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-03 04:37:52,831 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:52,832 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-11-03 04:37:52,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:53,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:53,045 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:53,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:53,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1619803512, now seen corresponding path program 1 times [2021-11-03 04:37:53,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:53,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523675866] [2021-11-03 04:37:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:53,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:53,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:53,048 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:53,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:37:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:53,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:53,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-03 04:37:53,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:53,797 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-03 04:37:53,797 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:53,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523675866] [2021-11-03 04:37:53,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523675866] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:53,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:53,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:37:53,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711739661] [2021-11-03 04:37:53,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:37:53,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:53,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:37:53,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:37:53,800 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:53,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:53,861 INFO L93 Difference]: Finished difference Result 743 states and 1042 transitions. [2021-11-03 04:37:53,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:37:53,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-03 04:37:53,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:53,865 INFO L225 Difference]: With dead ends: 743 [2021-11-03 04:37:53,866 INFO L226 Difference]: Without dead ends: 506 [2021-11-03 04:37:53,867 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:37:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-11-03 04:37:53,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2021-11-03 04:37:53,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.39009900990099) internal successors, (702), 505 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 702 transitions. [2021-11-03 04:37:53,887 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 702 transitions. Word has length 103 [2021-11-03 04:37:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:53,887 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 702 transitions. [2021-11-03 04:37:53,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 702 transitions. [2021-11-03 04:37:53,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-03 04:37:53,890 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:53,890 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-11-03 04:37:53,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:54,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:54,101 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:54,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:54,102 INFO L85 PathProgramCache]: Analyzing trace with hash -847602632, now seen corresponding path program 1 times [2021-11-03 04:37:54,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:54,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672449665] [2021-11-03 04:37:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:54,102 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:54,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:54,103 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:54,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:37:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:54,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:54,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-03 04:37:54,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:54,844 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-03 04:37:54,844 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:54,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672449665] [2021-11-03 04:37:54,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672449665] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:54,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:54,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:37:54,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907014527] [2021-11-03 04:37:54,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:54,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:54,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:54,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:54,847 INFO L87 Difference]: Start difference. First operand 506 states and 702 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:54,884 INFO L93 Difference]: Finished difference Result 1023 states and 1418 transitions. [2021-11-03 04:37:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-03 04:37:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:54,888 INFO L225 Difference]: With dead ends: 1023 [2021-11-03 04:37:54,888 INFO L226 Difference]: Without dead ends: 527 [2021-11-03 04:37:54,889 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:54,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-11-03 04:37:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-11-03 04:37:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3859315589353611) internal successors, (729), 526 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:54,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 729 transitions. [2021-11-03 04:37:54,909 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 729 transitions. Word has length 103 [2021-11-03 04:37:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:54,909 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 729 transitions. [2021-11-03 04:37:54,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 729 transitions. [2021-11-03 04:37:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-03 04:37:54,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:54,912 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-11-03 04:37:54,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:55,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:55,124 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:55,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1168582955, now seen corresponding path program 1 times [2021-11-03 04:37:55,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:55,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541792752] [2021-11-03 04:37:55,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:55,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:55,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:55,126 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:55,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:37:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:55,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:55,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-03 04:37:55,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-03 04:37:55,928 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:55,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541792752] [2021-11-03 04:37:55,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541792752] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:55,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:55,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:37:55,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724637259] [2021-11-03 04:37:55,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:37:55,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:55,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:37:55,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:55,933 INFO L87 Difference]: Start difference. First operand 527 states and 729 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:55,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:55,962 INFO L93 Difference]: Finished difference Result 1070 states and 1478 transitions. [2021-11-03 04:37:55,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:37:55,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-03 04:37:55,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:55,967 INFO L225 Difference]: With dead ends: 1070 [2021-11-03 04:37:55,967 INFO L226 Difference]: Without dead ends: 553 [2021-11-03 04:37:55,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:37:55,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-11-03 04:37:55,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2021-11-03 04:37:55,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.3804347826086956) internal successors, (762), 552 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 762 transitions. [2021-11-03 04:37:55,990 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 762 transitions. Word has length 104 [2021-11-03 04:37:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:55,991 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 762 transitions. [2021-11-03 04:37:55,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 762 transitions. [2021-11-03 04:37:55,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-03 04:37:55,993 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:55,993 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2021-11-03 04:37:56,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:56,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:56,206 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:56,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:56,206 INFO L85 PathProgramCache]: Analyzing trace with hash -53319870, now seen corresponding path program 1 times [2021-11-03 04:37:56,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:56,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614508934] [2021-11-03 04:37:56,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:56,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:56,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:56,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:56,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:37:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:56,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:56,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-03 04:37:56,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-03 04:37:57,097 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:57,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614508934] [2021-11-03 04:37:57,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614508934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:57,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:57,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:37:57,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806648356] [2021-11-03 04:37:57,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:37:57,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:57,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:37:57,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:37:57,100 INFO L87 Difference]: Start difference. First operand 553 states and 762 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:57,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:57,177 INFO L93 Difference]: Finished difference Result 1520 states and 2113 transitions. [2021-11-03 04:37:57,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:37:57,178 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-03 04:37:57,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:57,184 INFO L225 Difference]: With dead ends: 1520 [2021-11-03 04:37:57,184 INFO L226 Difference]: Without dead ends: 1003 [2021-11-03 04:37:57,185 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:37:57,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2021-11-03 04:37:57,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2021-11-03 04:37:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3892215568862276) internal successors, (1392), 1002 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1392 transitions. [2021-11-03 04:37:57,223 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1392 transitions. Word has length 105 [2021-11-03 04:37:57,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:57,224 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1392 transitions. [2021-11-03 04:37:57,224 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1392 transitions. [2021-11-03 04:37:57,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-03 04:37:57,228 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:57,228 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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] [2021-11-03 04:37:57,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:57,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:57,441 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:57,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:57,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1519363111, now seen corresponding path program 1 times [2021-11-03 04:37:57,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:57,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024890948] [2021-11-03 04:37:57,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:57,443 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:57,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:57,444 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:57,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:37:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:57,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:37:57,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-03 04:37:58,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:37:58,550 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-03 04:37:58,550 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:37:58,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024890948] [2021-11-03 04:37:58,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024890948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:37:58,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:37:58,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:37:58,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254262783] [2021-11-03 04:37:58,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:37:58,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:37:58,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:37:58,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:37:58,563 INFO L87 Difference]: Start difference. First operand 1003 states and 1392 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:58,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:58,788 INFO L93 Difference]: Finished difference Result 2091 states and 2938 transitions. [2021-11-03 04:37:58,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:37:58,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-11-03 04:37:58,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:58,796 INFO L225 Difference]: With dead ends: 2091 [2021-11-03 04:37:58,796 INFO L226 Difference]: Without dead ends: 1124 [2021-11-03 04:37:58,798 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:37:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2021-11-03 04:37:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1095. [2021-11-03 04:37:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1094 states have (on average 1.3711151736745886) internal successors, (1500), 1094 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1500 transitions. [2021-11-03 04:37:58,838 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1500 transitions. Word has length 173 [2021-11-03 04:37:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:58,839 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 1500 transitions. [2021-11-03 04:37:58,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:37:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1500 transitions. [2021-11-03 04:37:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-03 04:37:58,844 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:58,844 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-11-03 04:37:58,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:59,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:59,057 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:59,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash -759567935, now seen corresponding path program 1 times [2021-11-03 04:37:59,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:59,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558573491] [2021-11-03 04:37:59,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:59,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:59,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:59,060 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:59,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:37:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:59,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:37:59,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 456 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-03 04:38:00,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 440 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-03 04:38:00,750 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:00,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558573491] [2021-11-03 04:38:00,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558573491] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:38:00,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1701062525] [2021-11-03 04:38:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:00,752 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:38:00,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:38:00,754 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:38:00,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-03 04:38:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:01,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:01,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-11-03 04:38:02,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-11-03 04:38:02,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1701062525] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:02,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 04:38:02,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-03 04:38:02,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955122424] [2021-11-03 04:38:02,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:38:02,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:02,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:38:02,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:38:02,567 INFO L87 Difference]: Start difference. First operand 1095 states and 1500 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:02,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:02,615 INFO L93 Difference]: Finished difference Result 2409 states and 3304 transitions. [2021-11-03 04:38:02,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:38:02,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2021-11-03 04:38:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:02,624 INFO L225 Difference]: With dead ends: 2409 [2021-11-03 04:38:02,624 INFO L226 Difference]: Without dead ends: 1350 [2021-11-03 04:38:02,626 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 765 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:38:02,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2021-11-03 04:38:02,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1350. [2021-11-03 04:38:02,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1349 states have (on average 1.369162342475908) internal successors, (1847), 1349 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1847 transitions. [2021-11-03 04:38:02,674 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1847 transitions. Word has length 194 [2021-11-03 04:38:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:02,675 INFO L470 AbstractCegarLoop]: Abstraction has 1350 states and 1847 transitions. [2021-11-03 04:38:02,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1847 transitions. [2021-11-03 04:38:02,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-03 04:38:02,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:02,680 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2021-11-03 04:38:02,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:02,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:03,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:03,108 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:03,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:03,108 INFO L85 PathProgramCache]: Analyzing trace with hash 342847369, now seen corresponding path program 1 times [2021-11-03 04:38:03,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:03,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153651506] [2021-11-03 04:38:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:03,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:03,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:03,111 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:03,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 04:38:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:03,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:38:03,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-03 04:38:04,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-03 04:38:04,811 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:04,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153651506] [2021-11-03 04:38:04,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153651506] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:38:04,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [169750167] [2021-11-03 04:38:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:04,812 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:38:04,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:38:04,815 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:38:04,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-03 04:38:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:05,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:38:05,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-03 04:38:06,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-03 04:38:06,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [169750167] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:38:06,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058989816] [2021-11-03 04:38:06,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:06,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:38:06,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:38:06,919 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:38:06,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-03 04:38:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:07,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:38:07,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-03 04:38:08,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-03 04:38:08,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058989816] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:38:08,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:38:08,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-11-03 04:38:08,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650625546] [2021-11-03 04:38:08,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:38:08,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:08,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:38:08,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:38:08,868 INFO L87 Difference]: Start difference. First operand 1350 states and 1847 transitions. Second operand has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:09,402 INFO L93 Difference]: Finished difference Result 3072 states and 4244 transitions. [2021-11-03 04:38:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:38:09,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2021-11-03 04:38:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:09,414 INFO L225 Difference]: With dead ends: 3072 [2021-11-03 04:38:09,414 INFO L226 Difference]: Without dead ends: 1779 [2021-11-03 04:38:09,416 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1167 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-03 04:38:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2021-11-03 04:38:09,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1663. [2021-11-03 04:38:09,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1662 states have (on average 1.362214199759326) internal successors, (2264), 1662 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2264 transitions. [2021-11-03 04:38:09,482 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2264 transitions. Word has length 196 [2021-11-03 04:38:09,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:09,483 INFO L470 AbstractCegarLoop]: Abstraction has 1663 states and 2264 transitions. [2021-11-03 04:38:09,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:09,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2264 transitions. [2021-11-03 04:38:09,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-03 04:38:09,489 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:09,490 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 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, 1, 1, 1] [2021-11-03 04:38:09,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:09,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:09,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:10,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:38:10,095 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:10,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:10,096 INFO L85 PathProgramCache]: Analyzing trace with hash 228275513, now seen corresponding path program 1 times [2021-11-03 04:38:10,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:10,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837467312] [2021-11-03 04:38:10,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:10,096 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:10,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:10,097 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:10,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-03 04:38:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:11,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:11,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-03 04:38:11,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:11,876 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-03 04:38:11,876 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:11,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837467312] [2021-11-03 04:38:11,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837467312] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:11,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:11,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:38:11,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138988105] [2021-11-03 04:38:11,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:11,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:11,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:11,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:11,878 INFO L87 Difference]: Start difference. First operand 1663 states and 2264 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:12,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:12,220 INFO L93 Difference]: Finished difference Result 3473 states and 4788 transitions. [2021-11-03 04:38:12,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:12,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2021-11-03 04:38:12,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:12,232 INFO L225 Difference]: With dead ends: 3473 [2021-11-03 04:38:12,233 INFO L226 Difference]: Without dead ends: 1867 [2021-11-03 04:38:12,235 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:12,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2021-11-03 04:38:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1831. [2021-11-03 04:38:12,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1830 states have (on average 1.3420765027322403) internal successors, (2456), 1830 states have internal predecessors, (2456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2456 transitions. [2021-11-03 04:38:12,305 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2456 transitions. Word has length 221 [2021-11-03 04:38:12,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:12,306 INFO L470 AbstractCegarLoop]: Abstraction has 1831 states and 2456 transitions. [2021-11-03 04:38:12,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2456 transitions. [2021-11-03 04:38:12,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-03 04:38:12,313 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:12,313 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 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] [2021-11-03 04:38:12,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:12,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:12,528 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:12,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:12,528 INFO L85 PathProgramCache]: Analyzing trace with hash 629263864, now seen corresponding path program 1 times [2021-11-03 04:38:12,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:12,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291977380] [2021-11-03 04:38:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:12,529 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:12,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:12,529 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:12,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-03 04:38:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:13,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:13,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-11-03 04:38:14,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-11-03 04:38:14,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:14,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291977380] [2021-11-03 04:38:14,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291977380] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:14,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:14,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:38:14,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945711699] [2021-11-03 04:38:14,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:14,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:14,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:14,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:14,429 INFO L87 Difference]: Start difference. First operand 1831 states and 2456 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:14,683 INFO L93 Difference]: Finished difference Result 3809 states and 5192 transitions. [2021-11-03 04:38:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:14,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2021-11-03 04:38:14,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:14,695 INFO L225 Difference]: With dead ends: 3809 [2021-11-03 04:38:14,695 INFO L226 Difference]: Without dead ends: 2035 [2021-11-03 04:38:14,699 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:14,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2021-11-03 04:38:14,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 2017. [2021-11-03 04:38:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 2016 states have (on average 1.3224206349206349) internal successors, (2666), 2016 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2666 transitions. [2021-11-03 04:38:14,767 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2666 transitions. Word has length 232 [2021-11-03 04:38:14,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:14,768 INFO L470 AbstractCegarLoop]: Abstraction has 2017 states and 2666 transitions. [2021-11-03 04:38:14,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2666 transitions. [2021-11-03 04:38:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-03 04:38:14,776 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:14,777 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2021-11-03 04:38:14,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:14,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:14,992 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:14,992 INFO L85 PathProgramCache]: Analyzing trace with hash -749493446, now seen corresponding path program 1 times [2021-11-03 04:38:14,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:14,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935173595] [2021-11-03 04:38:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:14,993 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:14,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:14,994 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:14,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-03 04:38:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:16,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:16,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:16,551 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-03 04:38:16,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-03 04:38:17,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:17,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935173595] [2021-11-03 04:38:17,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935173595] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:17,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:17,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:38:17,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166820731] [2021-11-03 04:38:17,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:17,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:17,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:17,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:17,083 INFO L87 Difference]: Start difference. First operand 2017 states and 2666 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:17,307 INFO L93 Difference]: Finished difference Result 4259 states and 5714 transitions. [2021-11-03 04:38:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:17,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2021-11-03 04:38:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:17,320 INFO L225 Difference]: With dead ends: 4259 [2021-11-03 04:38:17,320 INFO L226 Difference]: Without dead ends: 2299 [2021-11-03 04:38:17,323 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:17,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2021-11-03 04:38:17,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2239. [2021-11-03 04:38:17,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2238 states have (on average 1.3011617515638962) internal successors, (2912), 2238 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:17,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2912 transitions. [2021-11-03 04:38:17,418 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2912 transitions. Word has length 262 [2021-11-03 04:38:17,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:17,419 INFO L470 AbstractCegarLoop]: Abstraction has 2239 states and 2912 transitions. [2021-11-03 04:38:17,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2912 transitions. [2021-11-03 04:38:17,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-03 04:38:17,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:17,427 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2021-11-03 04:38:17,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:17,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:17,643 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:17,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:17,643 INFO L85 PathProgramCache]: Analyzing trace with hash -120716101, now seen corresponding path program 1 times [2021-11-03 04:38:17,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:17,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561013987] [2021-11-03 04:38:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:17,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:17,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:17,645 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:17,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-03 04:38:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:18,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:18,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-11-03 04:38:19,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-11-03 04:38:19,933 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:19,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561013987] [2021-11-03 04:38:19,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561013987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:19,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:19,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:38:19,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85982523] [2021-11-03 04:38:19,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:19,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:19,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:19,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:19,935 INFO L87 Difference]: Start difference. First operand 2239 states and 2912 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:20,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:20,090 INFO L93 Difference]: Finished difference Result 8587 states and 11198 transitions. [2021-11-03 04:38:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:20,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2021-11-03 04:38:20,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:20,125 INFO L225 Difference]: With dead ends: 8587 [2021-11-03 04:38:20,125 INFO L226 Difference]: Without dead ends: 6405 [2021-11-03 04:38:20,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:20,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2021-11-03 04:38:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6401. [2021-11-03 04:38:20,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6400 states have (on average 1.303125) internal successors, (8340), 6400 states have internal predecessors, (8340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 8340 transitions. [2021-11-03 04:38:20,369 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 8340 transitions. Word has length 263 [2021-11-03 04:38:20,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:20,370 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 8340 transitions. [2021-11-03 04:38:20,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 8340 transitions. [2021-11-03 04:38:20,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-11-03 04:38:20,385 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:20,386 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:20,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:20,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:20,600 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:20,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:20,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1096027025, now seen corresponding path program 1 times [2021-11-03 04:38:20,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:20,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338943314] [2021-11-03 04:38:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:20,601 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:20,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:20,603 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:20,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-03 04:38:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:21,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:21,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-11-03 04:38:22,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-11-03 04:38:22,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:22,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338943314] [2021-11-03 04:38:22,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338943314] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:22,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:22,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:38:22,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151165178] [2021-11-03 04:38:22,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:22,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:22,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:22,997 INFO L87 Difference]: Start difference. First operand 6401 states and 8340 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:23,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:23,352 INFO L93 Difference]: Finished difference Result 13123 states and 17164 transitions. [2021-11-03 04:38:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:23,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2021-11-03 04:38:23,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:23,407 INFO L225 Difference]: With dead ends: 13123 [2021-11-03 04:38:23,407 INFO L226 Difference]: Without dead ends: 6779 [2021-11-03 04:38:23,416 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:23,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6779 states. [2021-11-03 04:38:23,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6779 to 6599. [2021-11-03 04:38:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 6598 states have (on average 1.2958472264322523) internal successors, (8550), 6598 states have internal predecessors, (8550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 8550 transitions. [2021-11-03 04:38:23,670 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 8550 transitions. Word has length 287 [2021-11-03 04:38:23,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:23,671 INFO L470 AbstractCegarLoop]: Abstraction has 6599 states and 8550 transitions. [2021-11-03 04:38:23,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:23,672 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 8550 transitions. [2021-11-03 04:38:23,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-11-03 04:38:23,687 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:23,688 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:23,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:23,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:23,905 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1966900500, now seen corresponding path program 1 times [2021-11-03 04:38:23,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:23,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294330761] [2021-11-03 04:38:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:23,906 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:23,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:23,907 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:23,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-03 04:38:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:25,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:25,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-11-03 04:38:25,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2021-11-03 04:38:26,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:26,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294330761] [2021-11-03 04:38:26,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294330761] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:26,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:26,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:38:26,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685566610] [2021-11-03 04:38:26,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:26,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:26,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:26,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:26,443 INFO L87 Difference]: Start difference. First operand 6599 states and 8550 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:26,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:26,767 INFO L93 Difference]: Finished difference Result 13987 states and 18394 transitions. [2021-11-03 04:38:26,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:26,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2021-11-03 04:38:26,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:26,822 INFO L225 Difference]: With dead ends: 13987 [2021-11-03 04:38:26,823 INFO L226 Difference]: Without dead ends: 7445 [2021-11-03 04:38:26,830 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:26,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7445 states. [2021-11-03 04:38:27,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7445 to 7265. [2021-11-03 04:38:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7265 states, 7264 states have (on average 1.27863436123348) internal successors, (9288), 7264 states have internal predecessors, (9288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7265 states to 7265 states and 9288 transitions. [2021-11-03 04:38:27,069 INFO L78 Accepts]: Start accepts. Automaton has 7265 states and 9288 transitions. Word has length 299 [2021-11-03 04:38:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:27,070 INFO L470 AbstractCegarLoop]: Abstraction has 7265 states and 9288 transitions. [2021-11-03 04:38:27,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7265 states and 9288 transitions. [2021-11-03 04:38:27,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-03 04:38:27,083 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:27,084 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:27,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:27,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:27,300 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:27,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:27,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1281776100, now seen corresponding path program 1 times [2021-11-03 04:38:27,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:27,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383230850] [2021-11-03 04:38:27,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:27,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:27,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:27,302 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:27,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-03 04:38:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:28,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:28,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-11-03 04:38:29,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-11-03 04:38:30,073 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:30,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383230850] [2021-11-03 04:38:30,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383230850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:30,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:30,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:38:30,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103605102] [2021-11-03 04:38:30,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:30,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:30,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:30,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:30,076 INFO L87 Difference]: Start difference. First operand 7265 states and 9288 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:30,390 INFO L93 Difference]: Finished difference Result 15373 states and 19960 transitions. [2021-11-03 04:38:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:30,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 336 [2021-11-03 04:38:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:30,406 INFO L225 Difference]: With dead ends: 15373 [2021-11-03 04:38:30,406 INFO L226 Difference]: Without dead ends: 8165 [2021-11-03 04:38:30,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:30,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8165 states. [2021-11-03 04:38:30,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 8003. [2021-11-03 04:38:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8003 states, 8002 states have (on average 1.2619345163709073) internal successors, (10098), 8002 states have internal predecessors, (10098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8003 states to 8003 states and 10098 transitions. [2021-11-03 04:38:30,609 INFO L78 Accepts]: Start accepts. Automaton has 8003 states and 10098 transitions. Word has length 336 [2021-11-03 04:38:30,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:30,609 INFO L470 AbstractCegarLoop]: Abstraction has 8003 states and 10098 transitions. [2021-11-03 04:38:30,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8003 states and 10098 transitions. [2021-11-03 04:38:30,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-11-03 04:38:30,643 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:30,644 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:30,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-11-03 04:38:30,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:30,860 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:30,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:30,861 INFO L85 PathProgramCache]: Analyzing trace with hash -321729676, now seen corresponding path program 1 times [2021-11-03 04:38:30,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:30,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977791367] [2021-11-03 04:38:30,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:30,862 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:30,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:30,863 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:30,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-03 04:38:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:32,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:38:32,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-03 04:38:33,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-03 04:38:33,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:33,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977791367] [2021-11-03 04:38:33,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977791367] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:38:33,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [418459130] [2021-11-03 04:38:33,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:33,876 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:38:33,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:38:33,876 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:38:33,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-11-03 04:38:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:36,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:38:36,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-03 04:38:37,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-03 04:38:37,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [418459130] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:38:37,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743656500] [2021-11-03 04:38:37,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:37,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:38:37,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:38:37,646 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:38:37,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-03 04:38:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:39,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:38:39,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-03 04:38:40,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:41,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-03 04:38:41,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743656500] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:38:41,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:38:41,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-11-03 04:38:41,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093461496] [2021-11-03 04:38:41,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:38:41,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:41,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:38:41,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:38:41,341 INFO L87 Difference]: Start difference. First operand 8003 states and 10098 transitions. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:42,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:42,301 INFO L93 Difference]: Finished difference Result 25706 states and 32511 transitions. [2021-11-03 04:38:42,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 04:38:42,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2021-11-03 04:38:42,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:42,336 INFO L225 Difference]: With dead ends: 25706 [2021-11-03 04:38:42,336 INFO L226 Difference]: Without dead ends: 17760 [2021-11-03 04:38:42,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2156 GetRequests, 2148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:38:42,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17760 states. [2021-11-03 04:38:42,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17760 to 10930. [2021-11-03 04:38:42,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10930 states, 10929 states have (on average 1.2780675267636563) internal successors, (13968), 10929 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10930 states to 10930 states and 13968 transitions. [2021-11-03 04:38:42,790 INFO L78 Accepts]: Start accepts. Automaton has 10930 states and 13968 transitions. Word has length 359 [2021-11-03 04:38:42,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:42,791 INFO L470 AbstractCegarLoop]: Abstraction has 10930 states and 13968 transitions. [2021-11-03 04:38:42,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:42,792 INFO L276 IsEmpty]: Start isEmpty. Operand 10930 states and 13968 transitions. [2021-11-03 04:38:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-11-03 04:38:42,810 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:42,811 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:42,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:43,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:43,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2021-11-03 04:38:43,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 04:38:43,427 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:43,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:43,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1433832451, now seen corresponding path program 1 times [2021-11-03 04:38:43,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:43,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017255437] [2021-11-03 04:38:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:43,429 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:43,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:43,430 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:43,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-03 04:38:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:45,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:45,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-11-03 04:38:46,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:46,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2021-11-03 04:38:46,949 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:46,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017255437] [2021-11-03 04:38:46,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017255437] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:46,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:46,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:38:46,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801158177] [2021-11-03 04:38:46,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:38:46,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:46,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:38:46,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:46,952 INFO L87 Difference]: Start difference. First operand 10930 states and 13968 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:47,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:47,155 INFO L93 Difference]: Finished difference Result 22761 states and 28697 transitions. [2021-11-03 04:38:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:38:47,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 361 [2021-11-03 04:38:47,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:47,180 INFO L225 Difference]: With dead ends: 22761 [2021-11-03 04:38:47,180 INFO L226 Difference]: Without dead ends: 11888 [2021-11-03 04:38:47,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 719 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:47,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11888 states. [2021-11-03 04:38:47,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11888 to 11329. [2021-11-03 04:38:47,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11329 states, 11328 states have (on average 1.2457627118644068) internal successors, (14112), 11328 states have internal predecessors, (14112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:47,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11329 states to 11329 states and 14112 transitions. [2021-11-03 04:38:47,556 INFO L78 Accepts]: Start accepts. Automaton has 11329 states and 14112 transitions. Word has length 361 [2021-11-03 04:38:47,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:47,557 INFO L470 AbstractCegarLoop]: Abstraction has 11329 states and 14112 transitions. [2021-11-03 04:38:47,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:47,557 INFO L276 IsEmpty]: Start isEmpty. Operand 11329 states and 14112 transitions. [2021-11-03 04:38:47,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-03 04:38:47,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:47,615 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 15, 14, 12, 12, 11, 11, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:47,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:47,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:47,816 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:47,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1396739116, now seen corresponding path program 1 times [2021-11-03 04:38:47,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:47,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441833745] [2021-11-03 04:38:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:47,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:47,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:47,818 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:47,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-03 04:38:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:50,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:50,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-11-03 04:38:51,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:52,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-11-03 04:38:52,154 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:52,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441833745] [2021-11-03 04:38:52,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441833745] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:52,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:52,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:38:52,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418687056] [2021-11-03 04:38:52,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:38:52,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:52,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:38:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:52,157 INFO L87 Difference]: Start difference. First operand 11329 states and 14112 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:52,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:52,404 INFO L93 Difference]: Finished difference Result 17799 states and 22219 transitions. [2021-11-03 04:38:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:38:52,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 434 [2021-11-03 04:38:52,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:52,418 INFO L225 Difference]: With dead ends: 17799 [2021-11-03 04:38:52,418 INFO L226 Difference]: Without dead ends: 7732 [2021-11-03 04:38:52,427 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:38:52,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2021-11-03 04:38:52,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 7730. [2021-11-03 04:38:52,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 1.2564367964807865) internal successors, (9711), 7729 states have internal predecessors, (9711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:52,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 9711 transitions. [2021-11-03 04:38:52,659 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 9711 transitions. Word has length 434 [2021-11-03 04:38:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:52,659 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 9711 transitions. [2021-11-03 04:38:52,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 9711 transitions. [2021-11-03 04:38:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2021-11-03 04:38:52,678 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:52,678 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 17, 15, 15, 14, 14, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:38:52,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:52,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:52,892 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:52,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash -839302048, now seen corresponding path program 1 times [2021-11-03 04:38:52,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:52,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973012531] [2021-11-03 04:38:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:52,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:52,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:52,895 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:52,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-03 04:38:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:38:55,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:38:55,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:38:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-11-03 04:38:56,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2021-11-03 04:38:57,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:38:57,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973012531] [2021-11-03 04:38:57,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973012531] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:38:57,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:38:57,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:38:57,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561403549] [2021-11-03 04:38:57,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:38:57,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:38:57,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:38:57,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:57,282 INFO L87 Difference]: Start difference. First operand 7730 states and 9711 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:38:57,622 INFO L93 Difference]: Finished difference Result 15781 states and 20041 transitions. [2021-11-03 04:38:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:38:57,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 544 [2021-11-03 04:38:57,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:38:57,634 INFO L225 Difference]: With dead ends: 15781 [2021-11-03 04:38:57,634 INFO L226 Difference]: Without dead ends: 7352 [2021-11-03 04:38:57,641 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1084 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:38:57,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2021-11-03 04:38:57,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 7298. [2021-11-03 04:38:57,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7298 states, 7297 states have (on average 1.2420172673701522) internal successors, (9063), 7297 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:57,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7298 states to 7298 states and 9063 transitions. [2021-11-03 04:38:57,886 INFO L78 Accepts]: Start accepts. Automaton has 7298 states and 9063 transitions. Word has length 544 [2021-11-03 04:38:57,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:38:57,887 INFO L470 AbstractCegarLoop]: Abstraction has 7298 states and 9063 transitions. [2021-11-03 04:38:57,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:38:57,887 INFO L276 IsEmpty]: Start isEmpty. Operand 7298 states and 9063 transitions. [2021-11-03 04:38:57,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-11-03 04:38:57,897 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:38:57,898 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 20, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 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] [2021-11-03 04:38:57,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-03 04:38:58,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:38:58,118 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:38:58,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:38:58,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1723660819, now seen corresponding path program 1 times [2021-11-03 04:38:58,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:38:58,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545587792] [2021-11-03 04:38:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:38:58,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:38:58,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:38:58,120 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:38:58,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-03 04:39:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:00,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:39:00,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-03 04:39:01,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-03 04:39:03,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:39:03,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545587792] [2021-11-03 04:39:03,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545587792] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:39:03,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [684934514] [2021-11-03 04:39:03,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:03,120 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:39:03,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:39:03,121 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:39:03,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-11-03 04:39:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:07,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:39:07,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-03 04:39:08,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:09,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-03 04:39:09,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [684934514] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:39:09,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465734912] [2021-11-03 04:39:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:39:09,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:39:09,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:39:09,587 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:39:09,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-03 04:39:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:39:13,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:39:13,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:39:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-03 04:39:14,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:39:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-03 04:39:15,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465734912] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:39:15,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:39:15,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-11-03 04:39:15,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926733331] [2021-11-03 04:39:15,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:39:15,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:39:15,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:39:15,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:39:15,719 INFO L87 Difference]: Start difference. First operand 7298 states and 9063 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:39:15,993 INFO L93 Difference]: Finished difference Result 7511 states and 9333 transitions. [2021-11-03 04:39:15,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:39:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 619 [2021-11-03 04:39:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:39:15,994 INFO L225 Difference]: With dead ends: 7511 [2021-11-03 04:39:15,994 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:39:15,999 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3712 GetRequests, 3706 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:39:15,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:39:15,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:39:15,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:16,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:39:16,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 619 [2021-11-03 04:39:16,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:39:16,000 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:39:16,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:39:16,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:39:16,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:39:16,003 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:39:16,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2021-11-03 04:39:16,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-11-03 04:39:16,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-11-03 04:39:16,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:39:16,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 04:39:16,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:16,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:17,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:18,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:18,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 04:39:22,035 INFO L853 garLoopResultBuilder]: At program point L135(lines 131 556) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9))) [2021-11-03 04:39:22,035 INFO L853 garLoopResultBuilder]: At program point L532(lines 95 598) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (let ((.cse8 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4448 32))) (.cse20 (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse22 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (.cse21 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32)))) (.cse26 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv3 32))) (.cse27 (= (_ bv4464 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse25 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4496 32))) (.cse6 (= (_ bv4480 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse24 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4528 32))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4416 32))) (.cse12 (not .cse0)) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse3 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0)) (.cse13 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse14 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse15 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse16 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse17 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse18 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse19 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse7 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (.cse10 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse23 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4512 32))) (.cse11 (not .cse4))) (or (and .cse0 (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse8 .cse5 .cse7) (and .cse1 .cse3 .cse4 .cse9 .cse5) (and .cse10 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4560 32)) .cse11) (and .cse12 .cse1 .cse10 .cse4 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse7) (and .cse1 .cse10 .cse4 .cse20 .cse7) (and .cse21 .cse1 .cse2 .cse3 .cse4 .cse22 .cse5 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse23 .cse7) (and .cse1 .cse10 .cse24 .cse7) (and .cse1 .cse2 .cse25 .cse3 .cse4 .cse5 .cse7) (and .cse21 .cse10 .cse26 .cse11) (and .cse1 .cse10 .cse4 .cse8 .cse7) (and .cse1 .cse10 .cse23 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse20 .cse5 .cse7) (and .cse10 .cse4 .cse22) (and .cse21 .cse1 .cse2 .cse3 .cse26 .cse11 .cse7) (and .cse1 .cse2 .cse27 .cse3 .cse4 .cse5 .cse7) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse10 .cse11 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32))) (and .cse10 .cse24 .cse11) (and (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4384 32))) (and .cse1 .cse27 .cse10 .cse4 .cse7) (and .cse1 .cse25 .cse10 .cse4 .cse7) (and .cse1 .cse10 .cse4 .cse6 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse24 .cse5 .cse7) (and .cse1 .cse10 .cse4 .cse9) (and .cse12 .cse1 .cse2 .cse3 .cse4 .cse13 .cse14 .cse15 .cse5 .cse16 .cse17 .cse18 .cse19 .cse7) (and .cse10 .cse23 .cse11)))) [2021-11-03 04:39:22,036 INFO L860 garLoopResultBuilder]: At program point L599(lines 94 600) the Hoare annotation is: true [2021-11-03 04:39:22,036 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 543) no Hoare annotation was computed. [2021-11-03 04:39:22,036 INFO L857 garLoopResultBuilder]: For program point L137(lines 137 554) no Hoare annotation was computed. [2021-11-03 04:39:22,036 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 565) no Hoare annotation was computed. [2021-11-03 04:39:22,036 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2021-11-03 04:39:22,036 INFO L857 garLoopResultBuilder]: For program point L369-2(lines 369 373) no Hoare annotation was computed. [2021-11-03 04:39:22,037 INFO L857 garLoopResultBuilder]: For program point L303-1(lines 303 317) no Hoare annotation was computed. [2021-11-03 04:39:22,037 INFO L853 garLoopResultBuilder]: At program point L204(lines 101 566) the Hoare annotation is: (and (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32))) (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-11-03 04:39:22,037 INFO L853 garLoopResultBuilder]: At program point L171(lines 167 544) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-11-03 04:39:22,037 INFO L857 garLoopResultBuilder]: For program point L568(lines 568 596) no Hoare annotation was computed. [2021-11-03 04:39:22,037 INFO L857 garLoopResultBuilder]: For program point L569(lines 569 593) no Hoare annotation was computed. [2021-11-03 04:39:22,038 INFO L857 garLoopResultBuilder]: For program point L503-1(lines 199 531) no Hoare annotation was computed. [2021-11-03 04:39:22,038 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 343) no Hoare annotation was computed. [2021-11-03 04:39:22,038 INFO L857 garLoopResultBuilder]: For program point L173(lines 173 542) no Hoare annotation was computed. [2021-11-03 04:39:22,038 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 553) no Hoare annotation was computed. [2021-11-03 04:39:22,038 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 564) no Hoare annotation was computed. [2021-11-03 04:39:22,038 INFO L857 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2021-11-03 04:39:22,038 INFO L857 garLoopResultBuilder]: For program point L570(lines 570 579) no Hoare annotation was computed. [2021-11-03 04:39:22,039 INFO L857 garLoopResultBuilder]: For program point L603-2(lines 603 607) no Hoare annotation was computed. [2021-11-03 04:39:22,039 INFO L857 garLoopResultBuilder]: For program point L570-2(lines 569 591) no Hoare annotation was computed. [2021-11-03 04:39:22,039 INFO L853 garLoopResultBuilder]: At program point L141(lines 137 554) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse9 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 .cse9) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2021-11-03 04:39:22,039 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 83) no Hoare annotation was computed. [2021-11-03 04:39:22,039 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 311) no Hoare annotation was computed. [2021-11-03 04:39:22,040 INFO L857 garLoopResultBuilder]: For program point L307-2(lines 305 317) no Hoare annotation was computed. [2021-11-03 04:39:22,040 INFO L857 garLoopResultBuilder]: For program point L572(lines 572 576) no Hoare annotation was computed. [2021-11-03 04:39:22,040 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 445) no Hoare annotation was computed. [2021-11-03 04:39:22,040 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 279) no Hoare annotation was computed. [2021-11-03 04:39:22,040 INFO L857 garLoopResultBuilder]: For program point L209(lines 209 213) no Hoare annotation was computed. [2021-11-03 04:39:22,040 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 541) no Hoare annotation was computed. [2021-11-03 04:39:22,040 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 552) no Hoare annotation was computed. [2021-11-03 04:39:22,041 INFO L857 garLoopResultBuilder]: For program point L209-2(lines 199 531) no Hoare annotation was computed. [2021-11-03 04:39:22,041 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 563) no Hoare annotation was computed. [2021-11-03 04:39:22,041 INFO L857 garLoopResultBuilder]: For program point L474(lines 474 478) no Hoare annotation was computed. [2021-11-03 04:39:22,041 INFO L853 garLoopResultBuilder]: At program point L177(lines 173 542) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse10 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse8) .cse9) (and .cse0 .cse10 .cse1 .cse2 .cse8 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse11) (and .cse0 .cse10 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse8 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse9 .cse11))) [2021-11-03 04:39:22,041 INFO L857 garLoopResultBuilder]: For program point L78(lines 78 82) no Hoare annotation was computed. [2021-11-03 04:39:22,042 INFO L857 garLoopResultBuilder]: For program point L78-2(lines 75 83) no Hoare annotation was computed. [2021-11-03 04:39:22,042 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 508 512) no Hoare annotation was computed. [2021-11-03 04:39:22,042 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 413) no Hoare annotation was computed. [2021-11-03 04:39:22,042 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 250) no Hoare annotation was computed. [2021-11-03 04:39:22,042 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 540) no Hoare annotation was computed. [2021-11-03 04:39:22,042 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 551) no Hoare annotation was computed. [2021-11-03 04:39:22,042 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 562) no Hoare annotation was computed. [2021-11-03 04:39:22,043 INFO L853 garLoopResultBuilder]: At program point L147(lines 143 552) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-11-03 04:39:22,043 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 483) no Hoare annotation was computed. [2021-11-03 04:39:22,043 INFO L857 garLoopResultBuilder]: For program point L479-2(lines 479 483) no Hoare annotation was computed. [2021-11-03 04:39:22,043 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 539) no Hoare annotation was computed. [2021-11-03 04:39:22,043 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 550) no Hoare annotation was computed. [2021-11-03 04:39:22,044 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 561) no Hoare annotation was computed. [2021-11-03 04:39:22,044 INFO L857 garLoopResultBuilder]: For program point L381(lines 381 385) no Hoare annotation was computed. [2021-11-03 04:39:22,044 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 352) no Hoare annotation was computed. [2021-11-03 04:39:22,044 INFO L853 garLoopResultBuilder]: At program point L183(lines 179 540) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse10 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse8 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse6 .cse7 (not .cse8) .cse9) (and .cse0 .cse10 .cse1 .cse2 .cse8 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse11) (and .cse0 .cse10 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse8 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse9 .cse11))) [2021-11-03 04:39:22,045 INFO L853 garLoopResultBuilder]: At program point L117(lines 113 562) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0)) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32))) (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) [2021-11-03 04:39:22,045 INFO L853 garLoopResultBuilder]: At program point L349(lines 67 616) the Hoare annotation is: false [2021-11-03 04:39:22,045 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 93) no Hoare annotation was computed. [2021-11-03 04:39:22,045 INFO L860 garLoopResultBuilder]: At program point L614(lines 67 616) the Hoare annotation is: true [2021-11-03 04:39:22,045 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 587) no Hoare annotation was computed. [2021-11-03 04:39:22,045 INFO L857 garLoopResultBuilder]: For program point L515(lines 515 519) no Hoare annotation was computed. [2021-11-03 04:39:22,046 INFO L857 garLoopResultBuilder]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2021-11-03 04:39:22,046 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 04:39:22,046 INFO L857 garLoopResultBuilder]: For program point L284(lines 284 288) no Hoare annotation was computed. [2021-11-03 04:39:22,046 INFO L857 garLoopResultBuilder]: For program point L284-2(lines 199 531) no Hoare annotation was computed. [2021-11-03 04:39:22,046 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 538) no Hoare annotation was computed. [2021-11-03 04:39:22,046 INFO L857 garLoopResultBuilder]: For program point L152(lines 152 549) no Hoare annotation was computed. [2021-11-03 04:39:22,047 INFO L857 garLoopResultBuilder]: For program point L119(lines 119 560) no Hoare annotation was computed. [2021-11-03 04:39:22,047 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2021-11-03 04:39:22,047 INFO L860 garLoopResultBuilder]: At program point L615(lines 10 617) the Hoare annotation is: true [2021-11-03 04:39:22,047 INFO L857 garLoopResultBuilder]: For program point L450(lines 450 454) no Hoare annotation was computed. [2021-11-03 04:39:22,047 INFO L857 garLoopResultBuilder]: For program point L353(lines 353 357) no Hoare annotation was computed. [2021-11-03 04:39:22,047 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 238) no Hoare annotation was computed. [2021-11-03 04:39:22,048 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 537) no Hoare annotation was computed. [2021-11-03 04:39:22,048 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 548) no Hoare annotation was computed. [2021-11-03 04:39:22,048 INFO L857 garLoopResultBuilder]: For program point L221-2(lines 199 531) no Hoare annotation was computed. [2021-11-03 04:39:22,048 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 559) no Hoare annotation was computed. [2021-11-03 04:39:22,048 INFO L853 garLoopResultBuilder]: At program point L189(lines 185 538) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse12 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 .cse4 .cse5 .cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse7 .cse8 (not .cse3) .cse10) (and .cse0 .cse1 .cse12 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2021-11-03 04:39:22,048 INFO L853 garLoopResultBuilder]: At program point L123(lines 119 560) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse10 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse11 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse2 .cse4 .cse5 .cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4400 32))) .cse7 (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse8 .cse10) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2021-11-03 04:39:22,048 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 487 499) no Hoare annotation was computed. [2021-11-03 04:39:22,048 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2021-11-03 04:39:22,048 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 04:39:22,048 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 228) no Hoare annotation was computed. [2021-11-03 04:39:22,049 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 536) no Hoare annotation was computed. [2021-11-03 04:39:22,049 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 547) no Hoare annotation was computed. [2021-11-03 04:39:22,049 INFO L857 garLoopResultBuilder]: For program point L125(lines 125 558) no Hoare annotation was computed. [2021-11-03 04:39:22,049 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 526) no Hoare annotation was computed. [2021-11-03 04:39:22,049 INFO L853 garLoopResultBuilder]: At program point L192(lines 191 536) the Hoare annotation is: (let ((.cse0 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4560 32))) (.cse4 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (.cse5 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4352 32)))) (or (and .cse0 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse1 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse3 .cse4) (and (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv3 32)) .cse5 (not .cse1) .cse3))) [2021-11-03 04:39:22,049 INFO L853 garLoopResultBuilder]: At program point L159(lines 149 550) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-11-03 04:39:22,049 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 495) no Hoare annotation was computed. [2021-11-03 04:39:22,049 INFO L857 garLoopResultBuilder]: For program point L457(lines 457 468) no Hoare annotation was computed. [2021-11-03 04:39:22,049 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 457 468) no Hoare annotation was computed. [2021-11-03 04:39:22,050 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2021-11-03 04:39:22,050 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 267) no Hoare annotation was computed. [2021-11-03 04:39:22,050 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 199 531) no Hoare annotation was computed. [2021-11-03 04:39:22,050 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 04:39:22,050 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-11-03 04:39:22,050 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 535) no Hoare annotation was computed. [2021-11-03 04:39:22,050 INFO L857 garLoopResultBuilder]: For program point L161(lines 161 546) no Hoare annotation was computed. [2021-11-03 04:39:22,051 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 557) no Hoare annotation was computed. [2021-11-03 04:39:22,051 INFO L857 garLoopResultBuilder]: For program point L95-1(lines 67 616) no Hoare annotation was computed. [2021-11-03 04:39:22,051 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 465) no Hoare annotation was computed. [2021-11-03 04:39:22,051 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2021-11-03 04:39:22,051 INFO L857 garLoopResultBuilder]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2021-11-03 04:39:22,051 INFO L860 garLoopResultBuilder]: At program point L195(lines 194 535) the Hoare annotation is: true [2021-11-03 04:39:22,052 INFO L853 garLoopResultBuilder]: At program point L129(lines 125 558) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32))))) (or (and .cse0 (not (= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4368 32))) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse2 .cse3 .cse4 .cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse6 .cse7 .cse8 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (and .cse0 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8))) [2021-11-03 04:39:22,052 INFO L857 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2021-11-03 04:39:22,052 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 266) no Hoare annotation was computed. [2021-11-03 04:39:22,052 INFO L857 garLoopResultBuilder]: For program point L229(lines 229 234) no Hoare annotation was computed. [2021-11-03 04:39:22,052 INFO L857 garLoopResultBuilder]: For program point L262-2(lines 199 531) no Hoare annotation was computed. [2021-11-03 04:39:22,052 INFO L860 garLoopResultBuilder]: At program point L626(lines 618 628) the Hoare annotation is: true [2021-11-03 04:39:22,052 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 545) no Hoare annotation was computed. [2021-11-03 04:39:22,053 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 556) no Hoare annotation was computed. [2021-11-03 04:39:22,053 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 567) no Hoare annotation was computed. [2021-11-03 04:39:22,053 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 04:39:22,053 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 610) no Hoare annotation was computed. [2021-11-03 04:39:22,053 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2021-11-03 04:39:22,053 INFO L857 garLoopResultBuilder]: For program point L429-2(lines 199 531) no Hoare annotation was computed. [2021-11-03 04:39:22,053 INFO L860 garLoopResultBuilder]: At program point L198(lines 197 534) the Hoare annotation is: true [2021-11-03 04:39:22,053 INFO L853 garLoopResultBuilder]: At program point L165(lines 161 546) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4368 32)))) (.cse1 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (not (= (_ bv4432 32) ULTIMATE.start_ssl3_connect_~s__state~0))) (.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4096 32)))) (.cse5 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv20480 32)))) (.cse6 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32)))) (.cse7 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4369 32)))) (.cse8 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv16384 32)))) (.cse9 (not (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4099 32)))) (.cse10 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0))) (or (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse2 (= (_ bv256 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0) .cse3 .cse4 .cse5 .cse6 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse7 .cse8 .cse9 .cse10))) [2021-11-03 04:39:22,053 INFO L853 garLoopResultBuilder]: At program point L99(lines 98 567) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv12292 32))) [2021-11-03 04:39:22,053 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 368) no Hoare annotation was computed. [2021-11-03 04:39:22,053 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 403) no Hoare annotation was computed. [2021-11-03 04:39:22,054 INFO L857 garLoopResultBuilder]: For program point L398-2(lines 398 403) no Hoare annotation was computed. [2021-11-03 04:39:22,054 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 544) no Hoare annotation was computed. [2021-11-03 04:39:22,054 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 555) no Hoare annotation was computed. [2021-11-03 04:39:22,054 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 566) no Hoare annotation was computed. [2021-11-03 04:39:22,056 INFO L731 BasicCegarLoop]: Path program 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] [2021-11-03 04:39:22,057 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:39:22,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:39:22 BoogieIcfgContainer [2021-11-03 04:39:22,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:39:22,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:39:22,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:39:22,096 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:39:22,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:37:47" (3/4) ... [2021-11-03 04:39:22,100 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:39:22,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-03 04:39:22,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 04:39:22,118 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:39:22,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:39:22,212 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:39:22,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:39:22,214 INFO L168 Benchmark]: Toolchain (without parser) took 96250.62 ms. Allocated memory was 73.4 MB in the beginning and 973.1 MB in the end (delta: 899.7 MB). Free memory was 54.8 MB in the beginning and 573.5 MB in the end (delta: -518.8 MB). Peak memory consumption was 381.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:22,214 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 73.4 MB. Free memory was 53.6 MB in the beginning and 53.5 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:39:22,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.71 ms. Allocated memory is still 73.4 MB. Free memory was 54.5 MB in the beginning and 53.8 MB in the end (delta: 730.2 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:22,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.55 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 51.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:22,216 INFO L168 Benchmark]: Boogie Preprocessor took 37.79 ms. Allocated memory is still 73.4 MB. Free memory was 51.1 MB in the beginning and 49.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:22,216 INFO L168 Benchmark]: RCFGBuilder took 772.36 ms. Allocated memory is still 73.4 MB. Free memory was 49.1 MB in the beginning and 46.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:22,217 INFO L168 Benchmark]: TraceAbstraction took 94845.82 ms. Allocated memory was 73.4 MB in the beginning and 973.1 MB in the end (delta: 899.7 MB). Free memory was 46.2 MB in the beginning and 584.0 MB in the end (delta: -537.8 MB). Peak memory consumption was 654.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:22,217 INFO L168 Benchmark]: Witness Printer took 116.62 ms. Allocated memory is still 973.1 MB. Free memory was 584.0 MB in the beginning and 573.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:39:22,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 73.4 MB. Free memory was 53.6 MB in the beginning and 53.5 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.71 ms. Allocated memory is still 73.4 MB. Free memory was 54.5 MB in the beginning and 53.8 MB in the end (delta: 730.2 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.55 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 51.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.79 ms. Allocated memory is still 73.4 MB. Free memory was 51.1 MB in the beginning and 49.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 772.36 ms. Allocated memory is still 73.4 MB. Free memory was 49.1 MB in the beginning and 46.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 94845.82 ms. Allocated memory was 73.4 MB in the beginning and 973.1 MB in the end (delta: 899.7 MB). Free memory was 46.2 MB in the beginning and 584.0 MB in the end (delta: -537.8 MB). Peak memory consumption was 654.2 MB. Max. memory is 16.1 GB. * Witness Printer took 116.62 ms. Allocated memory is still 973.1 MB. Free memory was 584.0 MB in the beginning and 573.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 610]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 94.7s, OverallIterations: 25, TraceHistogramMax: 22, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4650 SDtfs, 3875 SDslu, 4055 SDs, 0 SdLazy, 3761 SolverSat, 658 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16086 GetRequests, 16023 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11329occurred in iteration=22, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 25 MinimizatonAttempts, 8253 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 281 NumberOfFragments, 1940 HoareAnnotationTreeSize, 23 FomulaSimplifications, 19573 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 23 FomulaSimplificationsInter, 14684 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 33.4s InterpolantComputationTime, 8066 NumberOfCodeBlocks, 8066 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 16068 ConstructedInterpolants, 0 QuantifiedInterpolants, 22634 SizeOfPredicates, 14 NumberOfNonLiveVariables, 10823 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 64 InterpolantComputations, 44 PerfectInterpolantSequences, 70776/71144 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32))) || ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: (((((((0bv32 == blastFlag && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((!(s__state == 4368bv32) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && 1bv32 == blastFlag) && !(s__state == 16384bv32)) && !(s__state == 4099bv32))) || ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((s__state == 4368bv32 && 0bv32 == blastFlag) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 4480bv32 == s__state) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4448bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4416bv32) && !(5bv32 == blastFlag))) || ((2bv32 == blastFlag && s__state == 4560bv32) && !(s__hit == 0bv32))) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && 4432bv32 == s__state) && 65535bv32 == ag_X)) || (((((((!(s__s3__tmp__next_state___0 == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4400bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__state == 4512bv32) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__state == 4528bv32) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && s__state == 4496bv32) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((!(s__s3__tmp__next_state___0 == 4368bv32) && 2bv32 == blastFlag) && s__state == 3bv32) && !(s__hit == 0bv32))) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4448bv32) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__state == 4512bv32) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && 4432bv32 == s__state) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__hit == 0bv32) && s__state == 4400bv32)) || ((((((!(s__s3__tmp__next_state___0 == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__state == 3bv32) && !(s__hit == 0bv32)) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 4464bv32 == s__state) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32)) || ((2bv32 == blastFlag && s__state == 4528bv32) && !(s__hit == 0bv32))) || (1bv32 == blastFlag && s__state == 4384bv32)) || ((((61087bv32 == ag_Y && 4464bv32 == s__state) && 2bv32 == blastFlag) && s__hit == 0bv32) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && s__state == 4496bv32) && 2bv32 == blastFlag) && s__hit == 0bv32) && 65535bv32 == ag_X)) || ((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && 4480bv32 == s__state) && 65535bv32 == ag_X)) || ((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && s__state == 4528bv32) && !(5bv32 == blastFlag)) && 65535bv32 == ag_X)) || (((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__state == 4416bv32)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && s__s3__tmp__next_state___0 == 4560bv32) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || ((2bv32 == blastFlag && s__state == 4512bv32) && !(s__hit == 0bv32)) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 0bv32 == blastFlag && s__state == 12292bv32 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((!(s__state == 4368bv32) && 0bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: ((((((((61087bv32 == ag_Y && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) && 65535bv32 == ag_X) || (((((61087bv32 == ag_Y && 2bv32 == blastFlag) && s__hit == 0bv32) && s__s3__tmp__next_state___0 == 4560bv32) && s__state == 4352bv32) && 65535bv32 == ag_X)) || (((s__s3__tmp__next_state___0 == 3bv32 && 2bv32 == blastFlag) && !(s__hit == 0bv32)) && s__state == 4352bv32) - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((((((((((((((!(s__state == 4368bv32) && !(s__s3__tmp__next_state___0 == 4368bv32)) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || ((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4400bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__hit == 0bv32)) && !(s__state == 4099bv32)) || (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X)) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) || (((((((((((((!(s__state == 4368bv32) && 61087bv32 == ag_Y) && !(3bv32 == blastFlag)) && !(4432bv32 == s__state)) && 256bv32 == s__s3__tmp__new_cipher__algorithms) && s__hit == 0bv32) && !(s__state == 4096bv32)) && !(s__state == 20480bv32)) && !(s__state == 12292bv32)) && !(5bv32 == blastFlag)) && !(s__state == 4369bv32)) && !(s__state == 16384bv32)) && !(s__state == 4099bv32)) && 65535bv32 == ag_X) RESULT: Ultimate proved your program to be correct! [2021-11-03 04:39:22,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc8145b-6449-4ff2-981f-f7bcd3da8979/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE