./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:26:23,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:26:23,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:26:23,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:26:23,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:26:23,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:26:23,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:26:23,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:26:23,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:26:23,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:26:23,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:26:23,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:26:23,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:26:23,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:26:23,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:26:23,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:26:23,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:26:23,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:26:23,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:26:23,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:26:23,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:26:23,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:26:23,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:26:23,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:26:23,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:26:23,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:26:23,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:26:23,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:26:23,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:26:23,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:26:23,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:26:23,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:26:23,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:26:23,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:26:23,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:26:23,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:26:23,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:26:23,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:26:23,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:26:23,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:26:23,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:26:23,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 13:26:23,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:26:23,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:26:23,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:26:23,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:26:23,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:26:23,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:26:23,713 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:26:23,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:26:23,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:26:23,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:26:23,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:26:23,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:26:23,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:26:23,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:26:23,715 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:26:23,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:26:23,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:26:23,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:26:23,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:26:23,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:26:23,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:26:23,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:26:23,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:26:23,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:26:23,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:26:23,718 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:26:23,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:26:23,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:26:23,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:26:23,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b [2021-11-23 13:26:23,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:26:23,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:26:23,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:26:23,971 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:26:23,972 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:26:23,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-23 13:26:24,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/data/5176d0ca0/ffa2a328c4b245dea1adce5e79995930/FLAGbe151ff52 [2021-11-23 13:26:24,997 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:26:24,998 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-23 13:26:25,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/data/5176d0ca0/ffa2a328c4b245dea1adce5e79995930/FLAGbe151ff52 [2021-11-23 13:26:25,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/data/5176d0ca0/ffa2a328c4b245dea1adce5e79995930 [2021-11-23 13:26:25,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:26:25,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:26:25,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:26:25,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:26:25,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:26:25,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:26:25" (1/1) ... [2021-11-23 13:26:25,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fce9590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:25, skipping insertion in model container [2021-11-23 13:26:25,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:26:25" (1/1) ... [2021-11-23 13:26:25,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:26:25,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:26:26,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2021-11-23 13:26:27,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:26:27,430 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:26:27,530 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2021-11-23 13:26:27,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:26:27,895 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:26:27,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27 WrapperNode [2021-11-23 13:26:27,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:26:27,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:26:27,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:26:27,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:26:27,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,341 INFO L137 Inliner]: procedures = 256, calls = 2394, calls flagged for inlining = 496, calls inlined = 873, statements flattened = 11380 [2021-11-23 13:26:28,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:26:28,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:26:28,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:26:28,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:26:28,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:26:28,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:26:28,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:26:28,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:26:28,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (1/1) ... [2021-11-23 13:26:28,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:26:28,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:26:28,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:26:28,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0cb7ae9f-27ee-416e-aaf1-b0d36f128cfb/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:26:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 13:26:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 13:26:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 13:26:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:26:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:26:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:26:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 13:26:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 13:26:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 13:26:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:26:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:26:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:26:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:26:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:26:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 13:26:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:26:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:26:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:26:29,501 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:26:29,503 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:26:42,570 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:26:42,610 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:26:42,610 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 13:26:42,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:26:42 BoogieIcfgContainer [2021-11-23 13:26:42,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:26:42,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:26:42,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:26:42,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:26:42,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:26:25" (1/3) ... [2021-11-23 13:26:42,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8e8cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:26:42, skipping insertion in model container [2021-11-23 13:26:42,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:26:27" (2/3) ... [2021-11-23 13:26:42,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8e8cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:26:42, skipping insertion in model container [2021-11-23 13:26:42,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:26:42" (3/3) ... [2021-11-23 13:26:42,625 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-23 13:26:42,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:26:42,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-23 13:26:42,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:26:42,724 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=PETRI_NET, 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 [2021-11-23 13:26:42,724 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-23 13:26:42,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 2218 states, 2146 states have (on average 1.4282385834109972) internal successors, (3065), 2217 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 13:26:42,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:26:42,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:26:42,807 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:26:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:26:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash -196032821, now seen corresponding path program 1 times [2021-11-23 13:26:42,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:26:42,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720824425] [2021-11-23 13:26:42,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:26:42,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:26:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:26:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:26:43,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:26:43,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720824425] [2021-11-23 13:26:43,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720824425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:26:43,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:26:43,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:26:43,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424006244] [2021-11-23 13:26:43,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:26:43,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:26:43,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:26:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:26:43,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:43,615 INFO L87 Difference]: Start difference. First operand has 2218 states, 2146 states have (on average 1.4282385834109972) internal successors, (3065), 2217 states have internal predecessors, (3065), 0 states have call successors, (0), 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 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:26:44,113 INFO L93 Difference]: Finished difference Result 5899 states and 8188 transitions. [2021-11-23 13:26:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:26:44,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-23 13:26:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:26:44,225 INFO L225 Difference]: With dead ends: 5899 [2021-11-23 13:26:44,225 INFO L226 Difference]: Without dead ends: 3665 [2021-11-23 13:26:44,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:44,244 INFO L933 BasicCegarLoop]: 2868 mSDtfsCounter, 2101 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2101 SdHoareTripleChecker+Valid, 5659 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:26:44,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2101 Valid, 5659 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:26:44,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2021-11-23 13:26:44,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3521. [2021-11-23 13:26:44,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3521 states, 3450 states have (on average 1.3857971014492754) internal successors, (4781), 3520 states have internal predecessors, (4781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3521 states to 3521 states and 4781 transitions. [2021-11-23 13:26:44,477 INFO L78 Accepts]: Start accepts. Automaton has 3521 states and 4781 transitions. Word has length 31 [2021-11-23 13:26:44,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:26:44,478 INFO L470 AbstractCegarLoop]: Abstraction has 3521 states and 4781 transitions. [2021-11-23 13:26:44,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:44,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3521 states and 4781 transitions. [2021-11-23 13:26:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 13:26:44,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:26:44,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:26:44,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:26:44,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:26:44,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:26:44,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1868544215, now seen corresponding path program 1 times [2021-11-23 13:26:44,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:26:44,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081335649] [2021-11-23 13:26:44,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:26:44,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:26:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:26:44,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:26:44,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:26:44,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081335649] [2021-11-23 13:26:44,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081335649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:26:44,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:26:44,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:26:44,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351154662] [2021-11-23 13:26:44,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:26:44,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:26:44,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:26:44,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:26:44,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:44,780 INFO L87 Difference]: Start difference. First operand 3521 states and 4781 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:45,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:26:45,044 INFO L93 Difference]: Finished difference Result 8891 states and 12119 transitions. [2021-11-23 13:26:45,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:26:45,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-23 13:26:45,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:26:45,077 INFO L225 Difference]: With dead ends: 8891 [2021-11-23 13:26:45,077 INFO L226 Difference]: Without dead ends: 5420 [2021-11-23 13:26:45,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:45,085 INFO L933 BasicCegarLoop]: 3598 mSDtfsCounter, 1755 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 6365 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:26:45,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1755 Valid, 6365 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:26:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2021-11-23 13:26:45,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5315. [2021-11-23 13:26:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5244 states have (on average 1.3993135011441649) internal successors, (7338), 5314 states have internal predecessors, (7338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 7338 transitions. [2021-11-23 13:26:45,264 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 7338 transitions. Word has length 32 [2021-11-23 13:26:45,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:26:45,265 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 7338 transitions. [2021-11-23 13:26:45,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:45,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 7338 transitions. [2021-11-23 13:26:45,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 13:26:45,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:26:45,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:26:45,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:26:45,268 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:26:45,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:26:45,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1074649147, now seen corresponding path program 1 times [2021-11-23 13:26:45,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:26:45,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50596229] [2021-11-23 13:26:45,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:26:45,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:26:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:26:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:26:45,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:26:45,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50596229] [2021-11-23 13:26:45,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50596229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:26:45,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:26:45,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:26:45,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375536416] [2021-11-23 13:26:45,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:26:45,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:26:45,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:26:45,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:26:45,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:45,455 INFO L87 Difference]: Start difference. First operand 5315 states and 7338 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:45,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:26:45,911 INFO L93 Difference]: Finished difference Result 15760 states and 21794 transitions. [2021-11-23 13:26:45,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:26:45,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-11-23 13:26:45,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:26:45,974 INFO L225 Difference]: With dead ends: 15760 [2021-11-23 13:26:45,974 INFO L226 Difference]: Without dead ends: 10495 [2021-11-23 13:26:45,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:45,992 INFO L933 BasicCegarLoop]: 3596 mSDtfsCounter, 2715 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 6420 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:26:45,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2715 Valid, 6420 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:26:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10495 states. [2021-11-23 13:26:46,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10495 to 10357. [2021-11-23 13:26:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10357 states, 10286 states have (on average 1.4032665759284464) internal successors, (14434), 10356 states have internal predecessors, (14434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10357 states to 10357 states and 14434 transitions. [2021-11-23 13:26:46,378 INFO L78 Accepts]: Start accepts. Automaton has 10357 states and 14434 transitions. Word has length 37 [2021-11-23 13:26:46,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:26:46,379 INFO L470 AbstractCegarLoop]: Abstraction has 10357 states and 14434 transitions. [2021-11-23 13:26:46,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 10357 states and 14434 transitions. [2021-11-23 13:26:46,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 13:26:46,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:26:46,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:26:46,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:26:46,386 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:26:46,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:26:46,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1157249958, now seen corresponding path program 1 times [2021-11-23 13:26:46,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:26:46,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661718636] [2021-11-23 13:26:46,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:26:46,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:26:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:26:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:26:46,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:26:46,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661718636] [2021-11-23 13:26:46,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661718636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:26:46,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:26:46,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:26:46,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672765561] [2021-11-23 13:26:46,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:26:46,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:26:46,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:26:46,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:26:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:46,610 INFO L87 Difference]: Start difference. First operand 10357 states and 14434 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:47,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:26:47,265 INFO L93 Difference]: Finished difference Result 28417 states and 39643 transitions. [2021-11-23 13:26:47,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:26:47,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-11-23 13:26:47,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:26:47,361 INFO L225 Difference]: With dead ends: 28417 [2021-11-23 13:26:47,361 INFO L226 Difference]: Without dead ends: 18110 [2021-11-23 13:26:47,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:47,383 INFO L933 BasicCegarLoop]: 3604 mSDtfsCounter, 2338 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 6377 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:26:47,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2338 Valid, 6377 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:26:47,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18110 states. [2021-11-23 13:26:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18110 to 17991. [2021-11-23 13:26:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17991 states, 17920 states have (on average 1.4060267857142856) internal successors, (25196), 17990 states have internal predecessors, (25196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:48,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17991 states to 17991 states and 25196 transitions. [2021-11-23 13:26:48,189 INFO L78 Accepts]: Start accepts. Automaton has 17991 states and 25196 transitions. Word has length 37 [2021-11-23 13:26:48,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:26:48,190 INFO L470 AbstractCegarLoop]: Abstraction has 17991 states and 25196 transitions. [2021-11-23 13:26:48,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:48,191 INFO L276 IsEmpty]: Start isEmpty. Operand 17991 states and 25196 transitions. [2021-11-23 13:26:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 13:26:48,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:26:48,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:26:48,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:26:48,193 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:26:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:26:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash -260118332, now seen corresponding path program 1 times [2021-11-23 13:26:48,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:26:48,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047664474] [2021-11-23 13:26:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:26:48,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:26:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:26:48,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:26:48,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:26:48,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047664474] [2021-11-23 13:26:48,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047664474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:26:48,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:26:48,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:26:48,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827251171] [2021-11-23 13:26:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:26:48,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:26:48,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:26:48,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:26:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:48,467 INFO L87 Difference]: Start difference. First operand 17991 states and 25196 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) [2021-11-23 13:26:49,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:26:49,430 INFO L93 Difference]: Finished difference Result 51263 states and 71692 transitions. [2021-11-23 13:26:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:26:49,431 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 38 [2021-11-23 13:26:49,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:26:49,522 INFO L225 Difference]: With dead ends: 51263 [2021-11-23 13:26:49,522 INFO L226 Difference]: Without dead ends: 33322 [2021-11-23 13:26:49,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:49,557 INFO L933 BasicCegarLoop]: 4054 mSDtfsCounter, 2575 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 6836 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:26:49,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2575 Valid, 6836 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:26:49,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33322 states. [2021-11-23 13:26:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33322 to 33163. [2021-11-23 13:26:50,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33163 states, 33092 states have (on average 1.40336032878037) internal successors, (46440), 33162 states have internal predecessors, (46440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33163 states to 33163 states and 46440 transitions. [2021-11-23 13:26:50,920 INFO L78 Accepts]: Start accepts. Automaton has 33163 states and 46440 transitions. Word has length 38 [2021-11-23 13:26:50,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:26:50,920 INFO L470 AbstractCegarLoop]: Abstraction has 33163 states and 46440 transitions. [2021-11-23 13:26:50,921 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) [2021-11-23 13:26:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 33163 states and 46440 transitions. [2021-11-23 13:26:50,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 13:26:50,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:26:50,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:26:50,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 13:26:50,929 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:26:50,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:26:50,930 INFO L85 PathProgramCache]: Analyzing trace with hash -543311259, now seen corresponding path program 1 times [2021-11-23 13:26:50,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:26:50,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127773666] [2021-11-23 13:26:50,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:26:50,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:26:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:26:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:26:51,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:26:51,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127773666] [2021-11-23 13:26:51,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127773666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:26:51,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:26:51,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:26:51,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903610899] [2021-11-23 13:26:51,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:26:51,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:26:51,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:26:51,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:26:51,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:51,157 INFO L87 Difference]: Start difference. First operand 33163 states and 46440 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:26:53,002 INFO L93 Difference]: Finished difference Result 94960 states and 132947 transitions. [2021-11-23 13:26:53,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:26:53,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 [2021-11-23 13:26:53,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:26:53,325 INFO L225 Difference]: With dead ends: 94960 [2021-11-23 13:26:53,326 INFO L226 Difference]: Without dead ends: 61847 [2021-11-23 13:26:53,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:53,379 INFO L933 BasicCegarLoop]: 4295 mSDtfsCounter, 2601 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:26:53,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2601 Valid, 7077 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:26:53,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61847 states. [2021-11-23 13:26:55,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61847 to 61699. [2021-11-23 13:26:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61699 states, 61628 states have (on average 1.4027390147335628) internal successors, (86448), 61698 states have internal predecessors, (86448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:55,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61699 states to 61699 states and 86448 transitions. [2021-11-23 13:26:55,757 INFO L78 Accepts]: Start accepts. Automaton has 61699 states and 86448 transitions. Word has length 39 [2021-11-23 13:26:55,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:26:55,757 INFO L470 AbstractCegarLoop]: Abstraction has 61699 states and 86448 transitions. [2021-11-23 13:26:55,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 61699 states and 86448 transitions. [2021-11-23 13:26:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 13:26:55,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:26:55,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:26:55,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 13:26:55,761 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:26:55,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:26:55,762 INFO L85 PathProgramCache]: Analyzing trace with hash 45881933, now seen corresponding path program 1 times [2021-11-23 13:26:55,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:26:55,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086070746] [2021-11-23 13:26:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:26:55,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:26:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:26:55,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:26:55,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:26:55,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086070746] [2021-11-23 13:26:55,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086070746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:26:55,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:26:55,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:26:55,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019694958] [2021-11-23 13:26:55,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:26:55,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:26:55,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:26:55,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:26:55,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:55,992 INFO L87 Difference]: Start difference. First operand 61699 states and 86448 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:57,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:26:57,258 INFO L93 Difference]: Finished difference Result 61699 states and 86448 transitions. [2021-11-23 13:26:57,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:26:57,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-23 13:26:57,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:26:57,442 INFO L225 Difference]: With dead ends: 61699 [2021-11-23 13:26:57,442 INFO L226 Difference]: Without dead ends: 61687 [2021-11-23 13:26:57,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:57,458 INFO L933 BasicCegarLoop]: 2833 mSDtfsCounter, 1927 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 3697 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:26:57,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1927 Valid, 3697 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:26:57,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61687 states. [2021-11-23 13:26:59,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61687 to 61687. [2021-11-23 13:26:59,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61687 states, 61622 states have (on average 1.400165525299406) internal successors, (86281), 61686 states have internal predecessors, (86281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61687 states to 61687 states and 86281 transitions. [2021-11-23 13:26:59,232 INFO L78 Accepts]: Start accepts. Automaton has 61687 states and 86281 transitions. Word has length 45 [2021-11-23 13:26:59,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:26:59,232 INFO L470 AbstractCegarLoop]: Abstraction has 61687 states and 86281 transitions. [2021-11-23 13:26:59,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:26:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 61687 states and 86281 transitions. [2021-11-23 13:26:59,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 13:26:59,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:26:59,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:26:59,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 13:26:59,234 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:26:59,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:26:59,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1422345296, now seen corresponding path program 1 times [2021-11-23 13:26:59,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:26:59,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976753312] [2021-11-23 13:26:59,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:26:59,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:26:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:26:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:26:59,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:26:59,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976753312] [2021-11-23 13:26:59,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976753312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:26:59,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:26:59,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:26:59,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579631465] [2021-11-23 13:26:59,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:26:59,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:26:59,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:26:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:26:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:26:59,423 INFO L87 Difference]: Start difference. First operand 61687 states and 86281 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:01,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:01,601 INFO L93 Difference]: Finished difference Result 135442 states and 189371 transitions. [2021-11-23 13:27:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:27:01,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2021-11-23 13:27:01,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:01,787 INFO L225 Difference]: With dead ends: 135442 [2021-11-23 13:27:01,787 INFO L226 Difference]: Without dead ends: 73805 [2021-11-23 13:27:01,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:01,851 INFO L933 BasicCegarLoop]: 2775 mSDtfsCounter, 904 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 5049 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:01,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [904 Valid, 5049 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:27:01,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73805 states. [2021-11-23 13:27:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73805 to 73022. [2021-11-23 13:27:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73022 states, 72967 states have (on average 1.3872983677552866) internal successors, (101227), 73021 states have internal predecessors, (101227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73022 states to 73022 states and 101227 transitions. [2021-11-23 13:27:04,119 INFO L78 Accepts]: Start accepts. Automaton has 73022 states and 101227 transitions. Word has length 46 [2021-11-23 13:27:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:04,119 INFO L470 AbstractCegarLoop]: Abstraction has 73022 states and 101227 transitions. [2021-11-23 13:27:04,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 73022 states and 101227 transitions. [2021-11-23 13:27:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 13:27:04,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:04,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:04,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 13:27:04,121 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:27:04,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:04,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1143036600, now seen corresponding path program 1 times [2021-11-23 13:27:04,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:04,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948531989] [2021-11-23 13:27:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:04,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:04,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:04,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948531989] [2021-11-23 13:27:04,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948531989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:04,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:04,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:27:04,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376601511] [2021-11-23 13:27:04,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:04,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:27:04,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:04,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:27:04,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:04,288 INFO L87 Difference]: Start difference. First operand 73022 states and 101227 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:05,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:05,892 INFO L93 Difference]: Finished difference Result 73022 states and 101227 transitions. [2021-11-23 13:27:05,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:27:05,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-23 13:27:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:06,011 INFO L225 Difference]: With dead ends: 73022 [2021-11-23 13:27:06,012 INFO L226 Difference]: Without dead ends: 73013 [2021-11-23 13:27:06,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:06,029 INFO L933 BasicCegarLoop]: 2801 mSDtfsCounter, 2720 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:06,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2720 Valid, 2855 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73013 states. [2021-11-23 13:27:07,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73013 to 73013. [2021-11-23 13:27:07,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73013 states, 72959 states have (on average 1.3866692251812662) internal successors, (101170), 73012 states have internal predecessors, (101170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73013 states to 73013 states and 101170 transitions. [2021-11-23 13:27:07,843 INFO L78 Accepts]: Start accepts. Automaton has 73013 states and 101170 transitions. Word has length 47 [2021-11-23 13:27:07,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:07,843 INFO L470 AbstractCegarLoop]: Abstraction has 73013 states and 101170 transitions. [2021-11-23 13:27:07,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:07,844 INFO L276 IsEmpty]: Start isEmpty. Operand 73013 states and 101170 transitions. [2021-11-23 13:27:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 13:27:07,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:07,846 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:07,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 13:27:07,847 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:27:07,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:07,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1799785502, now seen corresponding path program 1 times [2021-11-23 13:27:07,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:07,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410831490] [2021-11-23 13:27:07,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:07,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:07,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:27:07,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:07,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410831490] [2021-11-23 13:27:07,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410831490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:07,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:07,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:27:07,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804979918] [2021-11-23 13:27:07,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:07,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:27:07,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:07,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:27:07,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:07,993 INFO L87 Difference]: Start difference. First operand 73013 states and 101170 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) [2021-11-23 13:27:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:09,369 INFO L93 Difference]: Finished difference Result 109888 states and 152250 transitions. [2021-11-23 13:27:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:27:09,370 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 77 [2021-11-23 13:27:09,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:09,418 INFO L225 Difference]: With dead ends: 109888 [2021-11-23 13:27:09,418 INFO L226 Difference]: Without dead ends: 36925 [2021-11-23 13:27:09,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:09,487 INFO L933 BasicCegarLoop]: 2798 mSDtfsCounter, 2795 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2795 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:09,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2795 Valid, 2802 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36925 states. [2021-11-23 13:27:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36925 to 36500. [2021-11-23 13:27:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36500 states, 36446 states have (on average 1.3886023157548153) internal successors, (50609), 36499 states have internal predecessors, (50609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36500 states to 36500 states and 50609 transitions. [2021-11-23 13:27:10,490 INFO L78 Accepts]: Start accepts. Automaton has 36500 states and 50609 transitions. Word has length 77 [2021-11-23 13:27:10,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:10,491 INFO L470 AbstractCegarLoop]: Abstraction has 36500 states and 50609 transitions. [2021-11-23 13:27:10,491 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) [2021-11-23 13:27:10,491 INFO L276 IsEmpty]: Start isEmpty. Operand 36500 states and 50609 transitions. [2021-11-23 13:27:10,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-23 13:27:10,494 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:10,494 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:10,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 13:27:10,495 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:27:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:10,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1006622569, now seen corresponding path program 1 times [2021-11-23 13:27:10,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:10,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612732421] [2021-11-23 13:27:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:10,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:10,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:27:10,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:10,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612732421] [2021-11-23 13:27:10,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612732421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:10,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:10,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:27:10,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296915759] [2021-11-23 13:27:10,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:10,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:27:10,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:10,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:27:10,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:10,692 INFO L87 Difference]: Start difference. First operand 36500 states and 50609 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) [2021-11-23 13:27:12,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:12,011 INFO L93 Difference]: Finished difference Result 72863 states and 101086 transitions. [2021-11-23 13:27:12,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:27:12,011 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 78 [2021-11-23 13:27:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:12,077 INFO L225 Difference]: With dead ends: 72863 [2021-11-23 13:27:12,077 INFO L226 Difference]: Without dead ends: 36448 [2021-11-23 13:27:12,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:12,114 INFO L933 BasicCegarLoop]: 3217 mSDtfsCounter, 2231 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:12,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2231 Valid, 4161 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:27:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36448 states. [2021-11-23 13:27:13,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36448 to 35827. [2021-11-23 13:27:13,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35827 states, 35802 states have (on average 1.374196972236188) internal successors, (49199), 35826 states have internal predecessors, (49199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35827 states to 35827 states and 49199 transitions. [2021-11-23 13:27:13,149 INFO L78 Accepts]: Start accepts. Automaton has 35827 states and 49199 transitions. Word has length 78 [2021-11-23 13:27:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:13,149 INFO L470 AbstractCegarLoop]: Abstraction has 35827 states and 49199 transitions. [2021-11-23 13:27:13,149 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) [2021-11-23 13:27:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 35827 states and 49199 transitions. [2021-11-23 13:27:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 13:27:13,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:13,154 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:13,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 13:27:13,155 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:27:13,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:13,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2095171899, now seen corresponding path program 1 times [2021-11-23 13:27:13,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:13,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346428122] [2021-11-23 13:27:13,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:13,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:13,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:27:13,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:13,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346428122] [2021-11-23 13:27:13,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346428122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:13,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:13,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:27:13,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731691719] [2021-11-23 13:27:13,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:13,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:27:13,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:13,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:27:13,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:13,331 INFO L87 Difference]: Start difference. First operand 35827 states and 49199 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:14,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:14,466 INFO L93 Difference]: Finished difference Result 35827 states and 49199 transitions. [2021-11-23 13:27:14,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:27:14,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 [2021-11-23 13:27:14,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:14,528 INFO L225 Difference]: With dead ends: 35827 [2021-11-23 13:27:14,529 INFO L226 Difference]: Without dead ends: 35815 [2021-11-23 13:27:14,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:14,543 INFO L933 BasicCegarLoop]: 2723 mSDtfsCounter, 781 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:14,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [781 Valid, 4643 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:14,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35815 states. [2021-11-23 13:27:15,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35815 to 35815. [2021-11-23 13:27:15,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35815 states, 35796 states have (on average 1.3702368979774275) internal successors, (49049), 35814 states have internal predecessors, (49049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:15,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35815 states to 35815 states and 49049 transitions. [2021-11-23 13:27:15,647 INFO L78 Accepts]: Start accepts. Automaton has 35815 states and 49049 transitions. Word has length 84 [2021-11-23 13:27:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:15,647 INFO L470 AbstractCegarLoop]: Abstraction has 35815 states and 49049 transitions. [2021-11-23 13:27:15,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:15,648 INFO L276 IsEmpty]: Start isEmpty. Operand 35815 states and 49049 transitions. [2021-11-23 13:27:15,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-23 13:27:15,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:15,677 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:15,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 13:27:15,678 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:27:15,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:15,678 INFO L85 PathProgramCache]: Analyzing trace with hash 878273601, now seen corresponding path program 1 times [2021-11-23 13:27:15,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:15,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836858394] [2021-11-23 13:27:15,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:15,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 13:27:16,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:16,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836858394] [2021-11-23 13:27:16,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836858394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:16,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:16,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:27:16,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503293787] [2021-11-23 13:27:16,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:16,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:27:16,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:16,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:27:16,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:27:16,022 INFO L87 Difference]: Start difference. First operand 35815 states and 49049 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:21,478 INFO L93 Difference]: Finished difference Result 149948 states and 205357 transitions. [2021-11-23 13:27:21,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:27:21,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 [2021-11-23 13:27:21,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:21,747 INFO L225 Difference]: With dead ends: 149948 [2021-11-23 13:27:21,747 INFO L226 Difference]: Without dead ends: 114218 [2021-11-23 13:27:21,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:27:21,815 INFO L933 BasicCegarLoop]: 5259 mSDtfsCounter, 8833 mSDsluCounter, 8883 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8833 SdHoareTripleChecker+Valid, 14142 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:21,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8833 Valid, 14142 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:27:21,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114218 states. [2021-11-23 13:27:24,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114218 to 35847. [2021-11-23 13:27:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35847 states, 35828 states have (on average 1.3694596405046333) internal successors, (49065), 35846 states have internal predecessors, (49065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35847 states to 35847 states and 49065 transitions. [2021-11-23 13:27:24,884 INFO L78 Accepts]: Start accepts. Automaton has 35847 states and 49065 transitions. Word has length 103 [2021-11-23 13:27:24,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:24,885 INFO L470 AbstractCegarLoop]: Abstraction has 35847 states and 49065 transitions. [2021-11-23 13:27:24,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:24,885 INFO L276 IsEmpty]: Start isEmpty. Operand 35847 states and 49065 transitions. [2021-11-23 13:27:24,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-23 13:27:24,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:24,909 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:24,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 13:27:24,910 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:27:24,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:24,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1341959393, now seen corresponding path program 1 times [2021-11-23 13:27:24,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:24,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544177049] [2021-11-23 13:27:24,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:24,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 13:27:25,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:25,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544177049] [2021-11-23 13:27:25,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544177049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:25,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:25,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:27:25,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870816877] [2021-11-23 13:27:25,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:25,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:27:25,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:25,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:27:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:25,105 INFO L87 Difference]: Start difference. First operand 35847 states and 49065 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:27:28,178 INFO L93 Difference]: Finished difference Result 99928 states and 136974 transitions. [2021-11-23 13:27:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:27:28,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 [2021-11-23 13:27:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:27:28,270 INFO L225 Difference]: With dead ends: 99928 [2021-11-23 13:27:28,270 INFO L226 Difference]: Without dead ends: 64166 [2021-11-23 13:27:28,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:27:28,302 INFO L933 BasicCegarLoop]: 4840 mSDtfsCounter, 2496 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 7171 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:27:28,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2496 Valid, 7171 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:27:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64166 states. [2021-11-23 13:27:30,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64166 to 35911. [2021-11-23 13:27:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35911 states, 35892 states have (on average 1.3687729856235373) internal successors, (49128), 35910 states have internal predecessors, (49128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35911 states to 35911 states and 49128 transitions. [2021-11-23 13:27:30,279 INFO L78 Accepts]: Start accepts. Automaton has 35911 states and 49128 transitions. Word has length 105 [2021-11-23 13:27:30,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:27:30,279 INFO L470 AbstractCegarLoop]: Abstraction has 35911 states and 49128 transitions. [2021-11-23 13:27:30,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:27:30,279 INFO L276 IsEmpty]: Start isEmpty. Operand 35911 states and 49128 transitions. [2021-11-23 13:27:30,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-23 13:27:30,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:27:30,303 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:27:30,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 13:27:30,304 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-23 13:27:30,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:27:30,304 INFO L85 PathProgramCache]: Analyzing trace with hash -424052631, now seen corresponding path program 1 times [2021-11-23 13:27:30,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:27:30,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583192122] [2021-11-23 13:27:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:27:30,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:27:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:27:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 13:27:30,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:27:30,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583192122] [2021-11-23 13:27:30,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583192122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:27:30,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:27:30,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:27:30,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054889272] [2021-11-23 13:27:30,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:27:30,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:27:30,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:27:30,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:27:30,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:27:30,593 INFO L87 Difference]: Start difference. First operand 35911 states and 49128 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)