./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label46.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa --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 32bit --witnessprinter.graph.data.programhash 541e7f2d0384c0fe15c71d37dc3b6d915f82dde67f224d182d5f6431c66d5181 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:38:45,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:38:45,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:38:45,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:38:45,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:38:45,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:38:45,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:38:45,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:38:45,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:38:45,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:38:45,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:38:45,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:38:45,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:38:45,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:38:45,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:38:45,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:38:45,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:38:45,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:38:45,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:38:45,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:38:45,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:38:45,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:38:45,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:38:45,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:38:45,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:38:45,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:38:45,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:38:45,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:38:45,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:38:45,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:38:45,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:38:45,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:38:45,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:38:45,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:38:45,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:38:45,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:38:45,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:38:45,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:38:45,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:38:45,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:38:45,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:38:45,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 19:38:45,631 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:38:45,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:38:45,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:38:45,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:38:45,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:38:45,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:38:45,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:38:45,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:38:45,633 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:38:45,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:38:45,634 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:38:45,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:38:45,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:38:45,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:38:45,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:38:45,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:38:45,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:38:45,635 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:38:45,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:38:45,636 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:38:45,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:38:45,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:38:45,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:38:45,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:38:45,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:38:45,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:38:45,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:38:45,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:38:45,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:38:45,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:38:45,638 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:38:45,638 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:38:45,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:38:45,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:38:45,639 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_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 541e7f2d0384c0fe15c71d37dc3b6d915f82dde67f224d182d5f6431c66d5181 [2021-12-06 19:38:45,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:38:45,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:38:45,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:38:45,849 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:38:45,849 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:38:45,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/eca-rers2012/Problem03_label46.c [2021-12-06 19:38:45,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/data/d72068762/c9309b3386d04fefbda0dc2a1fa4189c/FLAG455b00f89 [2021-12-06 19:38:46,401 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:38:46,402 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/sv-benchmarks/c/eca-rers2012/Problem03_label46.c [2021-12-06 19:38:46,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/data/d72068762/c9309b3386d04fefbda0dc2a1fa4189c/FLAG455b00f89 [2021-12-06 19:38:46,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/data/d72068762/c9309b3386d04fefbda0dc2a1fa4189c [2021-12-06 19:38:46,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:38:46,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:38:46,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:38:46,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:38:46,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:38:46,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:38:46" (1/1) ... [2021-12-06 19:38:46,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce27ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:46, skipping insertion in model container [2021-12-06 19:38:46,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:38:46" (1/1) ... [2021-12-06 19:38:46,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:38:46,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:38:47,330 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_31cff60c-f253-4b9a-8585-3dcc86636913/sv-benchmarks/c/eca-rers2012/Problem03_label46.c[59207,59220] [2021-12-06 19:38:47,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:38:47,356 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:38:47,505 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_31cff60c-f253-4b9a-8585-3dcc86636913/sv-benchmarks/c/eca-rers2012/Problem03_label46.c[59207,59220] [2021-12-06 19:38:47,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:38:47,523 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:38:47,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47 WrapperNode [2021-12-06 19:38:47,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:38:47,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:38:47,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:38:47,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:38:47,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,610 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2021-12-06 19:38:47,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:38:47,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:38:47,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:38:47,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:38:47,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:38:47,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:38:47,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:38:47,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:38:47,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (1/1) ... [2021-12-06 19:38:47,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:38:47,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:47,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:38:47,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:38:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:38:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:38:47,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:38:47,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:38:47,822 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:38:47,824 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:38:48,861 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:38:48,878 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:38:48,878 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 19:38:48,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:38:48 BoogieIcfgContainer [2021-12-06 19:38:48,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:38:48,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:38:48,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:38:48,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:38:48,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:38:46" (1/3) ... [2021-12-06 19:38:48,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654b59ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:38:48, skipping insertion in model container [2021-12-06 19:38:48,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:38:47" (2/3) ... [2021-12-06 19:38:48,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654b59ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:38:48, skipping insertion in model container [2021-12-06 19:38:48,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:38:48" (3/3) ... [2021-12-06 19:38:48,889 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label46.c [2021-12-06 19:38:48,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:38:48,894 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:38:48,943 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:38:48,950 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 [2021-12-06 19:38:48,950 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:38:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-06 19:38:48,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:48,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:48,987 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:48,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:48,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1730728613, now seen corresponding path program 1 times [2021-12-06 19:38:48,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:48,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417396176] [2021-12-06 19:38:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:48,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:49,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:49,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417396176] [2021-12-06 19:38:49,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417396176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:49,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:49,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:38:49,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108674805] [2021-12-06 19:38:49,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:49,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:49,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:49,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:49,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:49,444 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 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 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:50,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:50,191 INFO L93 Difference]: Finished difference Result 835 states and 1478 transitions. [2021-12-06 19:38:50,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:50,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 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 185 [2021-12-06 19:38:50,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:50,210 INFO L225 Difference]: With dead ends: 835 [2021-12-06 19:38:50,210 INFO L226 Difference]: Without dead ends: 456 [2021-12-06 19:38:50,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:50,218 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 103 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:50,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 161 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 19:38:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-12-06 19:38:50,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 451. [2021-12-06 19:38:50,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.5622222222222222) internal successors, (703), 450 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:50,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 703 transitions. [2021-12-06 19:38:50,266 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 703 transitions. Word has length 185 [2021-12-06 19:38:50,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:50,267 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 703 transitions. [2021-12-06 19:38:50,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:50,268 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 703 transitions. [2021-12-06 19:38:50,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-06 19:38:50,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:50,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:50,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:38:50,272 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:50,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:50,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1408358515, now seen corresponding path program 1 times [2021-12-06 19:38:50,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:50,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517498014] [2021-12-06 19:38:50,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:50,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:50,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:50,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517498014] [2021-12-06 19:38:50,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517498014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:50,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:50,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:38:50,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743531067] [2021-12-06 19:38:50,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:50,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:50,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:50,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:50,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:50,355 INFO L87 Difference]: Start difference. First operand 451 states and 703 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:50,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:50,880 INFO L93 Difference]: Finished difference Result 1340 states and 2094 transitions. [2021-12-06 19:38:50,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:50,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 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 191 [2021-12-06 19:38:50,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:50,885 INFO L225 Difference]: With dead ends: 1340 [2021-12-06 19:38:50,885 INFO L226 Difference]: Without dead ends: 891 [2021-12-06 19:38:50,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:50,887 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 285 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:50,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 154 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:38:50,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-12-06 19:38:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 887. [2021-12-06 19:38:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 1.5474040632054176) internal successors, (1371), 886 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:50,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1371 transitions. [2021-12-06 19:38:50,923 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1371 transitions. Word has length 191 [2021-12-06 19:38:50,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:50,924 INFO L470 AbstractCegarLoop]: Abstraction has 887 states and 1371 transitions. [2021-12-06 19:38:50,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1371 transitions. [2021-12-06 19:38:50,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-06 19:38:50,927 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:50,928 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:50,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:38:50,928 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:50,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:50,928 INFO L85 PathProgramCache]: Analyzing trace with hash 567972033, now seen corresponding path program 1 times [2021-12-06 19:38:50,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:50,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65983403] [2021-12-06 19:38:50,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:50,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:50,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:50,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65983403] [2021-12-06 19:38:50,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65983403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:50,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:50,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:38:50,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280526950] [2021-12-06 19:38:50,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:50,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:50,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:50,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:50,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:50,999 INFO L87 Difference]: Start difference. First operand 887 states and 1371 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:51,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:51,548 INFO L93 Difference]: Finished difference Result 2612 states and 4042 transitions. [2021-12-06 19:38:51,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:51,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 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 195 [2021-12-06 19:38:51,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:51,556 INFO L225 Difference]: With dead ends: 2612 [2021-12-06 19:38:51,556 INFO L226 Difference]: Without dead ends: 1727 [2021-12-06 19:38:51,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:51,558 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 234 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:51,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 114 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:38:51,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2021-12-06 19:38:51,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1725. [2021-12-06 19:38:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1724 states have (on average 1.4715777262180973) internal successors, (2537), 1724 states have internal predecessors, (2537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2537 transitions. [2021-12-06 19:38:51,592 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2537 transitions. Word has length 195 [2021-12-06 19:38:51,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:51,593 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 2537 transitions. [2021-12-06 19:38:51,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:51,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2537 transitions. [2021-12-06 19:38:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-06 19:38:51,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:51,597 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:51,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:38:51,597 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:51,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:51,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1214228354, now seen corresponding path program 1 times [2021-12-06 19:38:51,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:51,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766753985] [2021-12-06 19:38:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:51,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:51,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:51,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766753985] [2021-12-06 19:38:51,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766753985] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:51,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:51,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:38:51,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265666775] [2021-12-06 19:38:51,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:51,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:51,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:51,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:51,653 INFO L87 Difference]: Start difference. First operand 1725 states and 2537 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:52,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:52,237 INFO L93 Difference]: Finished difference Result 5091 states and 7490 transitions. [2021-12-06 19:38:52,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:52,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2021-12-06 19:38:52,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:52,250 INFO L225 Difference]: With dead ends: 5091 [2021-12-06 19:38:52,251 INFO L226 Difference]: Without dead ends: 3368 [2021-12-06 19:38:52,253 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 [2021-12-06 19:38:52,254 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 250 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:52,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 157 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:38:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2021-12-06 19:38:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 3366. [2021-12-06 19:38:52,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3365 states have (on average 1.4050520059435363) internal successors, (4728), 3365 states have internal predecessors, (4728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:52,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 4728 transitions. [2021-12-06 19:38:52,319 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 4728 transitions. Word has length 198 [2021-12-06 19:38:52,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:52,319 INFO L470 AbstractCegarLoop]: Abstraction has 3366 states and 4728 transitions. [2021-12-06 19:38:52,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:52,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 4728 transitions. [2021-12-06 19:38:52,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-06 19:38:52,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:52,326 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:52,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:38:52,326 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:52,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:52,327 INFO L85 PathProgramCache]: Analyzing trace with hash 497552120, now seen corresponding path program 1 times [2021-12-06 19:38:52,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:52,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565985439] [2021-12-06 19:38:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:52,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-06 19:38:52,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:52,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565985439] [2021-12-06 19:38:52,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565985439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:52,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:52,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:38:52,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093013800] [2021-12-06 19:38:52,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:52,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:52,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:52,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:52,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:52,384 INFO L87 Difference]: Start difference. First operand 3366 states and 4728 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:52,956 INFO L93 Difference]: Finished difference Result 9999 states and 14055 transitions. [2021-12-06 19:38:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:52,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 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 218 [2021-12-06 19:38:52,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:52,982 INFO L225 Difference]: With dead ends: 9999 [2021-12-06 19:38:52,982 INFO L226 Difference]: Without dead ends: 6635 [2021-12-06 19:38:52,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:52,986 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 235 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:52,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 133 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:38:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6635 states. [2021-12-06 19:38:53,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6635 to 6626. [2021-12-06 19:38:53,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6626 states, 6625 states have (on average 1.3542641509433961) internal successors, (8972), 6625 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:53,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6626 states to 6626 states and 8972 transitions. [2021-12-06 19:38:53,092 INFO L78 Accepts]: Start accepts. Automaton has 6626 states and 8972 transitions. Word has length 218 [2021-12-06 19:38:53,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:53,093 INFO L470 AbstractCegarLoop]: Abstraction has 6626 states and 8972 transitions. [2021-12-06 19:38:53,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:53,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6626 states and 8972 transitions. [2021-12-06 19:38:53,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-06 19:38:53,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:53,103 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:53,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:38:53,103 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:53,104 INFO L85 PathProgramCache]: Analyzing trace with hash 404178270, now seen corresponding path program 1 times [2021-12-06 19:38:53,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:53,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059038453] [2021-12-06 19:38:53,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:53,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-06 19:38:53,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:53,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059038453] [2021-12-06 19:38:53,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059038453] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:38:53,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586576459] [2021-12-06 19:38:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:53,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:38:53,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:53,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:38:53,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:38:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:53,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:38:53,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-06 19:38:53,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:38:53,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586576459] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:53,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:38:53,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-06 19:38:53,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73251097] [2021-12-06 19:38:53,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:53,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:53,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:53,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:53,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:38:53,500 INFO L87 Difference]: Start difference. First operand 6626 states and 8972 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:53,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:53,690 INFO L93 Difference]: Finished difference Result 19869 states and 26907 transitions. [2021-12-06 19:38:53,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:53,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 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 223 [2021-12-06 19:38:53,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:53,738 INFO L225 Difference]: With dead ends: 19869 [2021-12-06 19:38:53,738 INFO L226 Difference]: Without dead ends: 13245 [2021-12-06 19:38:53,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:38:53,745 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 356 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:53,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 617 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:38:53,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13245 states. [2021-12-06 19:38:53,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13245 to 11594. [2021-12-06 19:38:53,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11594 states, 11593 states have (on average 1.3599585957043043) internal successors, (15766), 11593 states have internal predecessors, (15766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11594 states to 11594 states and 15766 transitions. [2021-12-06 19:38:53,931 INFO L78 Accepts]: Start accepts. Automaton has 11594 states and 15766 transitions. Word has length 223 [2021-12-06 19:38:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:53,931 INFO L470 AbstractCegarLoop]: Abstraction has 11594 states and 15766 transitions. [2021-12-06 19:38:53,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 11594 states and 15766 transitions. [2021-12-06 19:38:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-06 19:38:53,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:53,947 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:53,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:54,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:38:54,148 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:54,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:54,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1883887689, now seen corresponding path program 1 times [2021-12-06 19:38:54,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:54,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742803055] [2021-12-06 19:38:54,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:54,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:54,219 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 19:38:54,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:54,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742803055] [2021-12-06 19:38:54,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742803055] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:38:54,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036775612] [2021-12-06 19:38:54,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:54,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:38:54,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:38:54,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:38:54,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:38:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:54,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:38:54,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 19:38:54,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:38:54,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036775612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:54,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:38:54,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-06 19:38:54,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522609095] [2021-12-06 19:38:54,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:54,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:54,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:54,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:54,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:38:54,608 INFO L87 Difference]: Start difference. First operand 11594 states and 15766 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:55,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:55,166 INFO L93 Difference]: Finished difference Result 32938 states and 44853 transitions. [2021-12-06 19:38:55,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:55,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 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 229 [2021-12-06 19:38:55,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:55,198 INFO L225 Difference]: With dead ends: 32938 [2021-12-06 19:38:55,198 INFO L226 Difference]: Without dead ends: 21346 [2021-12-06 19:38:55,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:38:55,208 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 55 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:55,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 418 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:38:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21346 states. [2021-12-06 19:38:55,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21346 to 20729. [2021-12-06 19:38:55,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20729 states, 20728 states have (on average 1.235478579698958) internal successors, (25609), 20728 states have internal predecessors, (25609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20729 states to 20729 states and 25609 transitions. [2021-12-06 19:38:55,475 INFO L78 Accepts]: Start accepts. Automaton has 20729 states and 25609 transitions. Word has length 229 [2021-12-06 19:38:55,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:55,475 INFO L470 AbstractCegarLoop]: Abstraction has 20729 states and 25609 transitions. [2021-12-06 19:38:55,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:55,476 INFO L276 IsEmpty]: Start isEmpty. Operand 20729 states and 25609 transitions. [2021-12-06 19:38:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-06 19:38:55,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:55,495 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:55,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:55,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:38:55,697 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1246639075, now seen corresponding path program 1 times [2021-12-06 19:38:55,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:55,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036909762] [2021-12-06 19:38:55,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:55,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 19:38:55,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:55,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036909762] [2021-12-06 19:38:55,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036909762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:55,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:55,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:38:55,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233772409] [2021-12-06 19:38:55,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:55,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:55,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:55,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:55,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:55,813 INFO L87 Difference]: Start difference. First operand 20729 states and 25609 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:56,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:56,187 INFO L93 Difference]: Finished difference Result 40743 states and 50304 transitions. [2021-12-06 19:38:56,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:56,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 246 [2021-12-06 19:38:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:56,216 INFO L225 Difference]: With dead ends: 40743 [2021-12-06 19:38:56,216 INFO L226 Difference]: Without dead ends: 20016 [2021-12-06 19:38:56,235 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 [2021-12-06 19:38:56,237 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 329 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:56,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:38:56,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20016 states. [2021-12-06 19:38:56,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20016 to 19610. [2021-12-06 19:38:56,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19610 states, 19609 states have (on average 1.216125248610332) internal successors, (23847), 19609 states have internal predecessors, (23847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:56,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19610 states to 19610 states and 23847 transitions. [2021-12-06 19:38:56,502 INFO L78 Accepts]: Start accepts. Automaton has 19610 states and 23847 transitions. Word has length 246 [2021-12-06 19:38:56,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:56,502 INFO L470 AbstractCegarLoop]: Abstraction has 19610 states and 23847 transitions. [2021-12-06 19:38:56,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:56,503 INFO L276 IsEmpty]: Start isEmpty. Operand 19610 states and 23847 transitions. [2021-12-06 19:38:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-12-06 19:38:56,523 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:56,523 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:56,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:38:56,524 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:56,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:56,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1351586102, now seen corresponding path program 1 times [2021-12-06 19:38:56,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:56,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126154727] [2021-12-06 19:38:56,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:56,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-06 19:38:56,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:56,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126154727] [2021-12-06 19:38:56,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126154727] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:56,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:56,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:38:56,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669563728] [2021-12-06 19:38:56,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:56,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:56,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:56,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:56,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:56,619 INFO L87 Difference]: Start difference. First operand 19610 states and 23847 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:57,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:57,228 INFO L93 Difference]: Finished difference Result 44318 states and 53812 transitions. [2021-12-06 19:38:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:57,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2021-12-06 19:38:57,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:57,251 INFO L225 Difference]: With dead ends: 44318 [2021-12-06 19:38:57,251 INFO L226 Difference]: Without dead ends: 24710 [2021-12-06 19:38:57,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:57,265 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 224 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:57,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 118 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:38:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24710 states. [2021-12-06 19:38:57,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24710 to 24703. [2021-12-06 19:38:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24703 states, 24702 states have (on average 1.2094972067039107) internal successors, (29877), 24702 states have internal predecessors, (29877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24703 states to 24703 states and 29877 transitions. [2021-12-06 19:38:57,528 INFO L78 Accepts]: Start accepts. Automaton has 24703 states and 29877 transitions. Word has length 263 [2021-12-06 19:38:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:57,528 INFO L470 AbstractCegarLoop]: Abstraction has 24703 states and 29877 transitions. [2021-12-06 19:38:57,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 2 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:57,529 INFO L276 IsEmpty]: Start isEmpty. Operand 24703 states and 29877 transitions. [2021-12-06 19:38:57,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-12-06 19:38:57,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:57,546 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-06 19:38:57,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:38:57,547 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash 2060308471, now seen corresponding path program 1 times [2021-12-06 19:38:57,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:57,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143973950] [2021-12-06 19:38:57,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:57,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:57,677 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:38:57,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:57,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143973950] [2021-12-06 19:38:57,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143973950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:57,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:57,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:38:57,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010641449] [2021-12-06 19:38:57,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:57,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:57,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:57,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:57,680 INFO L87 Difference]: Start difference. First operand 24703 states and 29877 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:58,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:58,207 INFO L93 Difference]: Finished difference Result 56304 states and 69149 transitions. [2021-12-06 19:38:58,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:58,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 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 275 [2021-12-06 19:38:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:58,233 INFO L225 Difference]: With dead ends: 56304 [2021-12-06 19:38:58,233 INFO L226 Difference]: Without dead ends: 31603 [2021-12-06 19:38:58,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:58,244 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 127 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:58,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 148 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:38:58,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31603 states. [2021-12-06 19:38:58,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31603 to 30182. [2021-12-06 19:38:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30182 states, 30181 states have (on average 1.1791193134753652) internal successors, (35587), 30181 states have internal predecessors, (35587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:58,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30182 states to 30182 states and 35587 transitions. [2021-12-06 19:38:58,627 INFO L78 Accepts]: Start accepts. Automaton has 30182 states and 35587 transitions. Word has length 275 [2021-12-06 19:38:58,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:58,628 INFO L470 AbstractCegarLoop]: Abstraction has 30182 states and 35587 transitions. [2021-12-06 19:38:58,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:58,628 INFO L276 IsEmpty]: Start isEmpty. Operand 30182 states and 35587 transitions. [2021-12-06 19:38:58,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-12-06 19:38:58,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:58,649 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:58,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 19:38:58,649 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:58,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:58,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1907909627, now seen corresponding path program 1 times [2021-12-06 19:38:58,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:58,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30843411] [2021-12-06 19:38:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:58,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:58,808 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-06 19:38:58,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:58,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30843411] [2021-12-06 19:38:58,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30843411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:58,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:58,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:38:58,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328379159] [2021-12-06 19:38:58,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:58,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:58,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:58,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:58,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:58,810 INFO L87 Difference]: Start difference. First operand 30182 states and 35587 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:59,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:59,378 INFO L93 Difference]: Finished difference Result 69138 states and 82164 transitions. [2021-12-06 19:38:59,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:59,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 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 317 [2021-12-06 19:38:59,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:59,417 INFO L225 Difference]: With dead ends: 69138 [2021-12-06 19:38:59,417 INFO L226 Difference]: Without dead ends: 43237 [2021-12-06 19:38:59,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:59,433 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 160 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:59,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 153 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:38:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43237 states. [2021-12-06 19:38:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43237 to 39337. [2021-12-06 19:38:59,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39337 states, 39336 states have (on average 1.1970205409802726) internal successors, (47086), 39336 states have internal predecessors, (47086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39337 states to 39337 states and 47086 transitions. [2021-12-06 19:38:59,856 INFO L78 Accepts]: Start accepts. Automaton has 39337 states and 47086 transitions. Word has length 317 [2021-12-06 19:38:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:59,856 INFO L470 AbstractCegarLoop]: Abstraction has 39337 states and 47086 transitions. [2021-12-06 19:38:59,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 2 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 39337 states and 47086 transitions. [2021-12-06 19:38:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-12-06 19:38:59,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:59,884 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:59,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 19:38:59,884 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:59,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1371667299, now seen corresponding path program 1 times [2021-12-06 19:38:59,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:59,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980763640] [2021-12-06 19:38:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:59,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 19:39:00,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:00,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980763640] [2021-12-06 19:39:00,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980763640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:00,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:39:00,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:39:00,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836093006] [2021-12-06 19:39:00,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:00,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:00,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:00,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:00,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:39:00,045 INFO L87 Difference]: Start difference. First operand 39337 states and 47086 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:00,772 INFO L93 Difference]: Finished difference Result 91288 states and 108908 transitions. [2021-12-06 19:39:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:00,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 321 [2021-12-06 19:39:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:00,826 INFO L225 Difference]: With dead ends: 91288 [2021-12-06 19:39:00,826 INFO L226 Difference]: Without dead ends: 52564 [2021-12-06 19:39:00,847 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 [2021-12-06 19:39:00,848 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 208 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:00,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 378 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:39:00,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52564 states. [2021-12-06 19:39:01,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52564 to 52554. [2021-12-06 19:39:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52554 states, 52553 states have (on average 1.1587159629326584) internal successors, (60894), 52553 states have internal predecessors, (60894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52554 states to 52554 states and 60894 transitions. [2021-12-06 19:39:01,534 INFO L78 Accepts]: Start accepts. Automaton has 52554 states and 60894 transitions. Word has length 321 [2021-12-06 19:39:01,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:01,534 INFO L470 AbstractCegarLoop]: Abstraction has 52554 states and 60894 transitions. [2021-12-06 19:39:01,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:01,535 INFO L276 IsEmpty]: Start isEmpty. Operand 52554 states and 60894 transitions. [2021-12-06 19:39:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-12-06 19:39:01,562 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:01,562 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:01,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 19:39:01,563 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:01,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:01,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2120284311, now seen corresponding path program 1 times [2021-12-06 19:39:01,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:01,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179751968] [2021-12-06 19:39:01,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:01,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 154 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:39:01,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:01,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179751968] [2021-12-06 19:39:01,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179751968] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:01,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528731208] [2021-12-06 19:39:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:01,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:01,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:01,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:01,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 19:39:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:01,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:01,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:02,098 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 19:39:02,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:02,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528731208] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:02,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:02,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 19:39:02,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737797950] [2021-12-06 19:39:02,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:02,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:02,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:02,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:02,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:39:02,100 INFO L87 Difference]: Start difference. First operand 52554 states and 60894 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:02,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:02,698 INFO L93 Difference]: Finished difference Result 104299 states and 120883 transitions. [2021-12-06 19:39:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:02,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 338 [2021-12-06 19:39:02,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:02,749 INFO L225 Difference]: With dead ends: 104299 [2021-12-06 19:39:02,749 INFO L226 Difference]: Without dead ends: 51950 [2021-12-06 19:39:02,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:39:02,773 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 77 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:02,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 290 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:39:02,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51950 states. [2021-12-06 19:39:03,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51950 to 50723. [2021-12-06 19:39:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50723 states, 50722 states have (on average 1.142561413193486) internal successors, (57953), 50722 states have internal predecessors, (57953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:03,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50723 states to 50723 states and 57953 transitions. [2021-12-06 19:39:03,357 INFO L78 Accepts]: Start accepts. Automaton has 50723 states and 57953 transitions. Word has length 338 [2021-12-06 19:39:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:03,357 INFO L470 AbstractCegarLoop]: Abstraction has 50723 states and 57953 transitions. [2021-12-06 19:39:03,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 50723 states and 57953 transitions. [2021-12-06 19:39:03,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-12-06 19:39:03,387 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:03,387 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:03,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 19:39:03,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:03,589 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:03,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:03,590 INFO L85 PathProgramCache]: Analyzing trace with hash -814585628, now seen corresponding path program 1 times [2021-12-06 19:39:03,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:03,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713073360] [2021-12-06 19:39:03,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:03,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:03,711 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-06 19:39:03,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:03,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713073360] [2021-12-06 19:39:03,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713073360] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:03,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:39:03,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:39:03,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280829962] [2021-12-06 19:39:03,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:03,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:39:03,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:03,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:39:03,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:39:03,713 INFO L87 Difference]: Start difference. First operand 50723 states and 57953 transitions. Second operand has 4 states, 4 states have (on average 72.25) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:04,742 INFO L93 Difference]: Finished difference Result 126665 states and 144997 transitions. [2021-12-06 19:39:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:39:04,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 344 [2021-12-06 19:39:04,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:04,819 INFO L225 Difference]: With dead ends: 126665 [2021-12-06 19:39:04,819 INFO L226 Difference]: Without dead ends: 78186 [2021-12-06 19:39:04,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:39:04,840 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 365 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:04,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 81 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 19:39:04,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78186 states. [2021-12-06 19:39:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78186 to 70842. [2021-12-06 19:39:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70842 states, 70841 states have (on average 1.1387896839400913) internal successors, (80673), 70841 states have internal predecessors, (80673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:05,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70842 states to 70842 states and 80673 transitions. [2021-12-06 19:39:05,701 INFO L78 Accepts]: Start accepts. Automaton has 70842 states and 80673 transitions. Word has length 344 [2021-12-06 19:39:05,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:05,701 INFO L470 AbstractCegarLoop]: Abstraction has 70842 states and 80673 transitions. [2021-12-06 19:39:05,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.25) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:05,701 INFO L276 IsEmpty]: Start isEmpty. Operand 70842 states and 80673 transitions. [2021-12-06 19:39:05,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-12-06 19:39:05,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:05,770 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:05,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 19:39:05,771 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:05,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1104087719, now seen corresponding path program 1 times [2021-12-06 19:39:05,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:05,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079667806] [2021-12-06 19:39:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:05,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 252 proven. 6 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-12-06 19:39:05,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:05,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079667806] [2021-12-06 19:39:05,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079667806] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:05,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931174216] [2021-12-06 19:39:05,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:05,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:05,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:05,915 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:05,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 19:39:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:06,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:06,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-12-06 19:39:06,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:06,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931174216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:06,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:06,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-06 19:39:06,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369160162] [2021-12-06 19:39:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:06,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:06,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:06,434 INFO L87 Difference]: Start difference. First operand 70842 states and 80673 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:07,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:07,338 INFO L93 Difference]: Finished difference Result 161673 states and 185223 transitions. [2021-12-06 19:39:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:07,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 434 [2021-12-06 19:39:07,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:07,433 INFO L225 Difference]: With dead ends: 161673 [2021-12-06 19:39:07,433 INFO L226 Difference]: Without dead ends: 91444 [2021-12-06 19:39:07,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:07,469 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 132 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:07,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 99 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:39:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91444 states. [2021-12-06 19:39:08,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91444 to 88987. [2021-12-06 19:39:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88987 states, 88986 states have (on average 1.1335266221652844) internal successors, (100868), 88986 states have internal predecessors, (100868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88987 states to 88987 states and 100868 transitions. [2021-12-06 19:39:08,667 INFO L78 Accepts]: Start accepts. Automaton has 88987 states and 100868 transitions. Word has length 434 [2021-12-06 19:39:08,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:08,668 INFO L470 AbstractCegarLoop]: Abstraction has 88987 states and 100868 transitions. [2021-12-06 19:39:08,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 88987 states and 100868 transitions. [2021-12-06 19:39:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-12-06 19:39:08,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:08,735 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:08,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 19:39:08,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-06 19:39:08,938 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:08,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:08,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1852664660, now seen corresponding path program 1 times [2021-12-06 19:39:08,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:08,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241834793] [2021-12-06 19:39:08,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:08,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 136 proven. 6 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2021-12-06 19:39:09,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:09,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241834793] [2021-12-06 19:39:09,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241834793] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:09,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296880540] [2021-12-06 19:39:09,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:09,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:09,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:09,078 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:09,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 19:39:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:09,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:09,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-12-06 19:39:09,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:09,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296880540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:09,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:09,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-06 19:39:09,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789104476] [2021-12-06 19:39:09,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:09,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:09,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:09,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:09,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:09,680 INFO L87 Difference]: Start difference. First operand 88987 states and 100868 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 2 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:10,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:10,376 INFO L93 Difference]: Finished difference Result 253300 states and 287127 transitions. [2021-12-06 19:39:10,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:10,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 2 states have internal predecessors, (313), 0 states have call successors, (0), 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 503 [2021-12-06 19:39:10,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:10,544 INFO L225 Difference]: With dead ends: 253300 [2021-12-06 19:39:10,544 INFO L226 Difference]: Without dead ends: 164721 [2021-12-06 19:39:10,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:10,596 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 209 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:10,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 525 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:39:10,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164721 states. [2021-12-06 19:39:12,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164721 to 156989. [2021-12-06 19:39:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156989 states, 156988 states have (on average 1.1355135424363645) internal successors, (178262), 156988 states have internal predecessors, (178262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156989 states to 156989 states and 178262 transitions. [2021-12-06 19:39:12,785 INFO L78 Accepts]: Start accepts. Automaton has 156989 states and 178262 transitions. Word has length 503 [2021-12-06 19:39:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:12,785 INFO L470 AbstractCegarLoop]: Abstraction has 156989 states and 178262 transitions. [2021-12-06 19:39:12,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 2 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:12,786 INFO L276 IsEmpty]: Start isEmpty. Operand 156989 states and 178262 transitions. [2021-12-06 19:39:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2021-12-06 19:39:12,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:12,908 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-06 19:39:12,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 19:39:13,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-06 19:39:13,111 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:13,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:13,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1280866654, now seen corresponding path program 1 times [2021-12-06 19:39:13,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:13,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122273390] [2021-12-06 19:39:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:13,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:13,405 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 202 proven. 6 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2021-12-06 19:39:13,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:13,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122273390] [2021-12-06 19:39:13,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122273390] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:13,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576447220] [2021-12-06 19:39:13,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:13,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:13,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:13,406 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:13,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 19:39:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:13,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:13,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 561 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-12-06 19:39:13,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:13,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576447220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:13,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:13,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-06 19:39:13,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942993172] [2021-12-06 19:39:13,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:13,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:13,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:13,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:13,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:13,888 INFO L87 Difference]: Start difference. First operand 156989 states and 178262 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:15,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:15,131 INFO L93 Difference]: Finished difference Result 355328 states and 404703 transitions. [2021-12-06 19:39:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:15,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 515 [2021-12-06 19:39:15,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:15,365 INFO L225 Difference]: With dead ends: 355328 [2021-12-06 19:39:15,365 INFO L226 Difference]: Without dead ends: 202405 [2021-12-06 19:39:15,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:15,436 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 154 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:15,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 159 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:39:15,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202405 states. [2021-12-06 19:39:17,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202405 to 164301. [2021-12-06 19:39:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164301 states, 164300 states have (on average 1.1346013390139988) internal successors, (186415), 164300 states have internal predecessors, (186415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164301 states to 164301 states and 186415 transitions. [2021-12-06 19:39:17,963 INFO L78 Accepts]: Start accepts. Automaton has 164301 states and 186415 transitions. Word has length 515 [2021-12-06 19:39:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:17,963 INFO L470 AbstractCegarLoop]: Abstraction has 164301 states and 186415 transitions. [2021-12-06 19:39:17,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 164301 states and 186415 transitions. [2021-12-06 19:39:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2021-12-06 19:39:18,057 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:18,057 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:18,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-06 19:39:18,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-06 19:39:18,260 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:18,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash -604117790, now seen corresponding path program 1 times [2021-12-06 19:39:18,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:18,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246798853] [2021-12-06 19:39:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:18,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 136 proven. 6 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2021-12-06 19:39:18,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:18,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246798853] [2021-12-06 19:39:18,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246798853] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:18,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855415700] [2021-12-06 19:39:18,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:18,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:18,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:18,411 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:18,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 19:39:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:18,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:39:18,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-06 19:39:19,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:19,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855415700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:19,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:19,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-06 19:39:19,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223169295] [2021-12-06 19:39:19,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:19,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:19,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:19,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:19,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:19,040 INFO L87 Difference]: Start difference. First operand 164301 states and 186415 transitions. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:20,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:20,174 INFO L93 Difference]: Finished difference Result 299287 states and 340102 transitions. [2021-12-06 19:39:20,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:20,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 520 [2021-12-06 19:39:20,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:20,328 INFO L225 Difference]: With dead ends: 299287 [2021-12-06 19:39:20,328 INFO L226 Difference]: Without dead ends: 136206 [2021-12-06 19:39:20,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:20,387 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 120 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:20,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 325 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:39:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136206 states. [2021-12-06 19:39:21,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136206 to 134171. [2021-12-06 19:39:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134171 states, 134170 states have (on average 1.1093388984124617) internal successors, (148840), 134170 states have internal predecessors, (148840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134171 states to 134171 states and 148840 transitions. [2021-12-06 19:39:22,053 INFO L78 Accepts]: Start accepts. Automaton has 134171 states and 148840 transitions. Word has length 520 [2021-12-06 19:39:22,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:22,054 INFO L470 AbstractCegarLoop]: Abstraction has 134171 states and 148840 transitions. [2021-12-06 19:39:22,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:22,054 INFO L276 IsEmpty]: Start isEmpty. Operand 134171 states and 148840 transitions. [2021-12-06 19:39:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2021-12-06 19:39:22,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:22,127 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:22,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-06 19:39:22,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-06 19:39:22,329 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:22,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:22,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1802618137, now seen corresponding path program 1 times [2021-12-06 19:39:22,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:22,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562200110] [2021-12-06 19:39:22,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:22,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 217 proven. 6 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2021-12-06 19:39:22,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:22,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562200110] [2021-12-06 19:39:22,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562200110] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:22,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132257621] [2021-12-06 19:39:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:22,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:22,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:22,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:22,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 19:39:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:22,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:39:22,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 516 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-12-06 19:39:23,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:23,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132257621] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:23,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:23,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-06 19:39:23,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75432954] [2021-12-06 19:39:23,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:23,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:23,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:23,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:23,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:23,192 INFO L87 Difference]: Start difference. First operand 134171 states and 148840 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:24,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:24,181 INFO L93 Difference]: Finished difference Result 245547 states and 271598 transitions. [2021-12-06 19:39:24,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:24,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 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 591 [2021-12-06 19:39:24,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:24,296 INFO L225 Difference]: With dead ends: 245547 [2021-12-06 19:39:24,296 INFO L226 Difference]: Without dead ends: 112596 [2021-12-06 19:39:24,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:24,343 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 216 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:24,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 340 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:39:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112596 states. [2021-12-06 19:39:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112596 to 112571. [2021-12-06 19:39:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112571 states, 112570 states have (on average 1.0971306742471352) internal successors, (123504), 112570 states have internal predecessors, (123504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112571 states to 112571 states and 123504 transitions. [2021-12-06 19:39:25,802 INFO L78 Accepts]: Start accepts. Automaton has 112571 states and 123504 transitions. Word has length 591 [2021-12-06 19:39:25,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:25,803 INFO L470 AbstractCegarLoop]: Abstraction has 112571 states and 123504 transitions. [2021-12-06 19:39:25,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:25,803 INFO L276 IsEmpty]: Start isEmpty. Operand 112571 states and 123504 transitions. [2021-12-06 19:39:25,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2021-12-06 19:39:25,869 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:25,869 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:25,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-06 19:39:26,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:26,072 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:26,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:26,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1425072561, now seen corresponding path program 1 times [2021-12-06 19:39:26,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:26,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365917983] [2021-12-06 19:39:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:26,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:26,302 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 744 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-06 19:39:26,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:26,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365917983] [2021-12-06 19:39:26,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365917983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:26,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:39:26,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:39:26,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24291124] [2021-12-06 19:39:26,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:26,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:39:26,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:39:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:39:26,304 INFO L87 Difference]: Start difference. First operand 112571 states and 123504 transitions. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:27,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:27,529 INFO L93 Difference]: Finished difference Result 237213 states and 260744 transitions. [2021-12-06 19:39:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:39:27,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 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 593 [2021-12-06 19:39:27,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:27,643 INFO L225 Difference]: With dead ends: 237213 [2021-12-06 19:39:27,643 INFO L226 Difference]: Without dead ends: 112870 [2021-12-06 19:39:27,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:39:27,688 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 281 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:27,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 100 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:39:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112870 states. [2021-12-06 19:39:28,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112870 to 86352. [2021-12-06 19:39:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86352 states, 86351 states have (on average 1.0677467545251358) internal successors, (92201), 86351 states have internal predecessors, (92201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86352 states to 86352 states and 92201 transitions. [2021-12-06 19:39:28,754 INFO L78 Accepts]: Start accepts. Automaton has 86352 states and 92201 transitions. Word has length 593 [2021-12-06 19:39:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:28,755 INFO L470 AbstractCegarLoop]: Abstraction has 86352 states and 92201 transitions. [2021-12-06 19:39:28,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 86352 states and 92201 transitions. [2021-12-06 19:39:28,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2021-12-06 19:39:28,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:28,811 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:28,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 19:39:28,812 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1066288460, now seen corresponding path program 1 times [2021-12-06 19:39:28,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:28,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998136555] [2021-12-06 19:39:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:28,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 710 proven. 18 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-12-06 19:39:28,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:28,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998136555] [2021-12-06 19:39:28,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998136555] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:28,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247148937] [2021-12-06 19:39:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:28,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:29,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:29,000 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:29,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 19:39:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:29,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:29,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-12-06 19:39:29,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:29,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247148937] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:29,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:29,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-06 19:39:29,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432485029] [2021-12-06 19:39:29,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:29,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:29,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:29,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:39:29,612 INFO L87 Difference]: Start difference. First operand 86352 states and 92201 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:30,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:30,337 INFO L93 Difference]: Finished difference Result 242131 states and 258617 transitions. [2021-12-06 19:39:30,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:30,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 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 644 [2021-12-06 19:39:30,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:30,491 INFO L225 Difference]: With dead ends: 242131 [2021-12-06 19:39:30,491 INFO L226 Difference]: Without dead ends: 158424 [2021-12-06 19:39:30,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:39:30,538 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 167 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:30,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 483 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:39:30,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158424 states. [2021-12-06 19:39:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158424 to 156774. [2021-12-06 19:39:32,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156774 states, 156773 states have (on average 1.0670778769303388) internal successors, (167289), 156773 states have internal predecessors, (167289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156774 states to 156774 states and 167289 transitions. [2021-12-06 19:39:32,340 INFO L78 Accepts]: Start accepts. Automaton has 156774 states and 167289 transitions. Word has length 644 [2021-12-06 19:39:32,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:32,340 INFO L470 AbstractCegarLoop]: Abstraction has 156774 states and 167289 transitions. [2021-12-06 19:39:32,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:32,341 INFO L276 IsEmpty]: Start isEmpty. Operand 156774 states and 167289 transitions. [2021-12-06 19:39:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2021-12-06 19:39:32,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:32,615 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:32,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 19:39:32,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:32,817 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:32,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:32,819 INFO L85 PathProgramCache]: Analyzing trace with hash -479718959, now seen corresponding path program 1 times [2021-12-06 19:39:32,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:32,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021283098] [2021-12-06 19:39:32,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:32,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:33,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 170 proven. 6 refuted. 0 times theorem prover too weak. 1079 trivial. 0 not checked. [2021-12-06 19:39:33,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:33,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021283098] [2021-12-06 19:39:33,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021283098] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:33,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253687657] [2021-12-06 19:39:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:33,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:33,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:33,007 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:33,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 19:39:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:33,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:39:33,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:33,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 845 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2021-12-06 19:39:33,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:33,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253687657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:33,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:33,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-06 19:39:33,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668264024] [2021-12-06 19:39:33,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:33,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:33,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:33,590 INFO L87 Difference]: Start difference. First operand 156774 states and 167289 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:34,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:34,676 INFO L93 Difference]: Finished difference Result 314963 states and 336069 transitions. [2021-12-06 19:39:34,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:34,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 676 [2021-12-06 19:39:34,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:34,825 INFO L225 Difference]: With dead ends: 314963 [2021-12-06 19:39:34,825 INFO L226 Difference]: Without dead ends: 155349 [2021-12-06 19:39:34,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 675 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:34,888 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 123 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:34,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 310 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:39:34,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155349 states. [2021-12-06 19:39:36,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155349 to 132756. [2021-12-06 19:39:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132756 states, 132755 states have (on average 1.0579940491883544) internal successors, (140454), 132755 states have internal predecessors, (140454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132756 states to 132756 states and 140454 transitions. [2021-12-06 19:39:36,615 INFO L78 Accepts]: Start accepts. Automaton has 132756 states and 140454 transitions. Word has length 676 [2021-12-06 19:39:36,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:36,616 INFO L470 AbstractCegarLoop]: Abstraction has 132756 states and 140454 transitions. [2021-12-06 19:39:36,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:36,616 INFO L276 IsEmpty]: Start isEmpty. Operand 132756 states and 140454 transitions. [2021-12-06 19:39:36,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2021-12-06 19:39:36,703 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:36,704 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 19:39:36,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 19:39:36,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:36,906 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:36,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1857506741, now seen corresponding path program 1 times [2021-12-06 19:39:36,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:36,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925026503] [2021-12-06 19:39:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:36,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:37,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 188 proven. 6 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2021-12-06 19:39:37,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:37,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925026503] [2021-12-06 19:39:37,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925026503] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:37,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800688301] [2021-12-06 19:39:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:37,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:37,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:37,127 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:37,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 19:39:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:37,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:37,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:37,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 969 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-12-06 19:39:37,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:37,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800688301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:37,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:37,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-06 19:39:37,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404681555] [2021-12-06 19:39:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:37,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:37,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:37,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:37,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:37,935 INFO L87 Difference]: Start difference. First operand 132756 states and 140454 transitions. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:38,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:38,939 INFO L93 Difference]: Finished difference Result 346265 states and 366633 transitions. [2021-12-06 19:39:38,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:38,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 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 687 [2021-12-06 19:39:38,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:39,178 INFO L225 Difference]: With dead ends: 346265 [2021-12-06 19:39:39,178 INFO L226 Difference]: Without dead ends: 216564 [2021-12-06 19:39:39,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:39,241 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 140 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:39,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 726 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:39:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216564 states. [2021-12-06 19:39:41,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216564 to 216126. [2021-12-06 19:39:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216126 states, 216125 states have (on average 1.053307113938693) internal successors, (227646), 216125 states have internal predecessors, (227646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216126 states to 216126 states and 227646 transitions. [2021-12-06 19:39:41,659 INFO L78 Accepts]: Start accepts. Automaton has 216126 states and 227646 transitions. Word has length 687 [2021-12-06 19:39:41,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:41,659 INFO L470 AbstractCegarLoop]: Abstraction has 216126 states and 227646 transitions. [2021-12-06 19:39:41,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 216126 states and 227646 transitions. [2021-12-06 19:39:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2021-12-06 19:39:41,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:41,778 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:41,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 19:39:41,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-12-06 19:39:41,980 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:41,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:41,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1757007, now seen corresponding path program 1 times [2021-12-06 19:39:41,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:41,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458809579] [2021-12-06 19:39:41,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:41,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:42,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 880 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-12-06 19:39:42,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:42,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458809579] [2021-12-06 19:39:42,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458809579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:42,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:39:42,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:39:42,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978685079] [2021-12-06 19:39:42,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:42,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:39:42,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:42,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:39:42,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:39:42,231 INFO L87 Difference]: Start difference. First operand 216126 states and 227646 transitions. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:44,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:44,319 INFO L93 Difference]: Finished difference Result 579805 states and 611304 transitions. [2021-12-06 19:39:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:39:44,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 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 693 [2021-12-06 19:39:44,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:44,723 INFO L225 Difference]: With dead ends: 579805 [2021-12-06 19:39:44,724 INFO L226 Difference]: Without dead ends: 366734 [2021-12-06 19:39:44,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:39:44,820 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 298 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:44,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 441 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:39:45,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366734 states. [2021-12-06 19:39:48,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366734 to 353286. [2021-12-06 19:39:48,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353286 states, 353285 states have (on average 1.0553688948016473) internal successors, (372846), 353285 states have internal predecessors, (372846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:49,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353286 states to 353286 states and 372846 transitions. [2021-12-06 19:39:49,061 INFO L78 Accepts]: Start accepts. Automaton has 353286 states and 372846 transitions. Word has length 693 [2021-12-06 19:39:49,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:49,061 INFO L470 AbstractCegarLoop]: Abstraction has 353286 states and 372846 transitions. [2021-12-06 19:39:49,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand 353286 states and 372846 transitions. [2021-12-06 19:39:49,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2021-12-06 19:39:49,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:49,208 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:49,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 19:39:49,208 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:49,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:49,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1589686662, now seen corresponding path program 1 times [2021-12-06 19:39:49,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:49,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525612938] [2021-12-06 19:39:49,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:49,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1459 backedges. 204 proven. 6 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2021-12-06 19:39:49,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:49,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525612938] [2021-12-06 19:39:49,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525612938] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:49,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744023549] [2021-12-06 19:39:49,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:49,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:49,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:49,373 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:49,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 19:39:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:49,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:39:49,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1459 backedges. 1121 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-12-06 19:39:50,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:50,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744023549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:50,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:50,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-06 19:39:50,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313645293] [2021-12-06 19:39:50,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:50,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:50,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:50,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:50,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:50,267 INFO L87 Difference]: Start difference. First operand 353286 states and 372846 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:52,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:52,245 INFO L93 Difference]: Finished difference Result 688259 states and 726532 transitions. [2021-12-06 19:39:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:52,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 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 710 [2021-12-06 19:39:52,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:52,776 INFO L225 Difference]: With dead ends: 688259 [2021-12-06 19:39:52,776 INFO L226 Difference]: Without dead ends: 335990 [2021-12-06 19:39:52,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:39:52,878 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 108 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:39:52,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 94 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:39:53,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335990 states. [2021-12-06 19:39:55,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335990 to 330651. [2021-12-06 19:39:56,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330651 states, 330650 states have (on average 1.050043853016785) internal successors, (347197), 330650 states have internal predecessors, (347197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:56,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330651 states to 330651 states and 347197 transitions. [2021-12-06 19:39:56,722 INFO L78 Accepts]: Start accepts. Automaton has 330651 states and 347197 transitions. Word has length 710 [2021-12-06 19:39:56,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:39:56,722 INFO L470 AbstractCegarLoop]: Abstraction has 330651 states and 347197 transitions. [2021-12-06 19:39:56,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:56,722 INFO L276 IsEmpty]: Start isEmpty. Operand 330651 states and 347197 transitions. [2021-12-06 19:39:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2021-12-06 19:39:56,850 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:39:56,851 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:39:56,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-06 19:39:57,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-06 19:39:57,053 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:39:57,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:39:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash 666563876, now seen corresponding path program 1 times [2021-12-06 19:39:57,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:39:57,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115597519] [2021-12-06 19:39:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:57,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:39:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:57,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 760 proven. 449 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-12-06 19:39:57,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:39:57,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115597519] [2021-12-06 19:39:57,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115597519] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:39:57,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8363034] [2021-12-06 19:39:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:39:57,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:39:57,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:39:57,454 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:39:57,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 19:39:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:39:57,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:39:57,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:39:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2021-12-06 19:39:58,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:39:58,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8363034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:39:58,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:39:58,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-06 19:39:58,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113019280] [2021-12-06 19:39:58,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:39:58,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:39:58,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:39:58,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:39:58,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:39:58,368 INFO L87 Difference]: Start difference. First operand 330651 states and 347197 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:40:00,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:40:00,408 INFO L93 Difference]: Finished difference Result 676661 states and 710646 transitions. [2021-12-06 19:40:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:40:00,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 733 [2021-12-06 19:40:00,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:40:00,409 INFO L225 Difference]: With dead ends: 676661 [2021-12-06 19:40:00,409 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 19:40:00,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:40:00,514 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 45 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:40:00,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 327 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:40:00,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 19:40:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 19:40:00,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:40:00,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 19:40:00,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 733 [2021-12-06 19:40:00,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:40:00,515 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:40:00,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:40:00,516 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 19:40:00,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 19:40:00,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 19:40:00,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-06 19:40:00,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-06 19:40:00,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 19:42:04,386 WARN L227 SmtUtils]: Spent 2.06m on a formula simplification that was a NOOP. DAG size: 2939 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-06 19:44:07,236 WARN L227 SmtUtils]: Spent 2.05m on a formula simplification that was a NOOP. DAG size: 2939 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-06 19:45:07,921 WARN L227 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 2939 DAG size of output: 125 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-06 19:46:08,249 WARN L227 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 2939 DAG size of output: 125 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-06 19:46:08,251 INFO L858 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-12-06 19:46:08,251 INFO L858 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-12-06 19:46:08,251 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-12-06 19:46:08,252 INFO L858 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-12-06 19:46:08,253 INFO L858 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,254 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-12-06 19:46:08,255 INFO L858 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,256 INFO L858 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,257 INFO L858 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,258 INFO L858 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,259 INFO L858 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-12-06 19:46:08,260 INFO L858 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,261 INFO L858 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,262 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1600) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,263 INFO L858 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,264 INFO L858 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-12-06 19:46:08,265 INFO L858 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-12-06 19:46:08,266 INFO L858 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-12-06 19:46:08,266 INFO L858 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-12-06 19:46:08,266 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,266 INFO L858 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,266 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L854 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse8 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse9 (= ~a12~0 1)) (.cse10 (<= ~a3~0 0)) (.cse4 (= ~a27~0 1)) (.cse16 (= ~a11~0 1))) (let ((.cse3 (<= ~a12~0 0)) (.cse6 (not .cse16)) (.cse22 (and .cse8 .cse0 .cse9 .cse10 .cse4))) (let ((.cse19 (<= ~a7~0 0)) (.cse20 (<= ~a10~0 0)) (.cse17 (or (and .cse8 .cse0 .cse10 .cse3 .cse4 .cse6) .cse22)) (.cse13 (<= ~a23~0 0)) (.cse5 (<= ~a20~0 0)) (.cse14 (= ~a25~0 ~a11~0)) (.cse15 (= ~a12~0 ~a11~0)) (.cse11 (= ~a16~0 1)) (.cse12 (= ~a3~0 1)) (.cse2 (= ~a6~0 1)) (.cse1 (<= 2 ~a3~0)) (.cse21 (= ~a11~0 ~a6~0)) (.cse18 (<= ~a26~0 0)) (.cse7 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse3 .cse6 .cse7) (and .cse8 .cse5 .cse0 .cse9 .cse10 .cse11 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse1 .cse7) (and .cse0 .cse12 .cse2 .cse3 .cse4 .cse6) (and .cse0 .cse10 .cse13 .cse3 .cse6 .cse7) (and .cse8 .cse14 .cse0 .cse15 .cse16 .cse12 .cse7) (and .cse8 .cse0 .cse10 .cse11 .cse2 .cse3 .cse6) (and .cse8 .cse0 .cse10 .cse15 .cse11 .cse16 .cse2) (and .cse17 .cse2) (and .cse5 .cse0 .cse18 .cse3 .cse6 .cse7) (and .cse19 .cse0 .cse1 .cse15 .cse11 .cse16 .cse2 .cse4) (and .cse0 .cse11 .cse16 .cse12 .cse3 .cse4 .cse7) (and .cse8 .cse5 .cse0 .cse3 .cse6 .cse7) (and .cse14 .cse0 .cse10 .cse13 .cse3 .cse7) (and .cse0 .cse9 .cse18 .cse13 .cse12 .cse2 .cse6) (and .cse8 .cse20 .cse0 .cse9 .cse21 .cse4 .cse7) (and .cse8 .cse0 .cse15 .cse11 .cse16 .cse7) (and .cse8 .cse0 .cse10 .cse11 .cse16 .cse3 .cse7) (and .cse8 .cse0 .cse21 .cse2 .cse3) (and .cse5 .cse0 .cse2 .cse3 .cse6) (and .cse8 .cse14 .cse0 .cse10 .cse15 .cse16 .cse2) (and .cse0 .cse9 .cse1 .cse11 .cse18 .cse2 .cse6) (and .cse5 .cse0 .cse9 .cse13 .cse12 .cse2 .cse6) (and .cse8 .cse0 .cse16 .cse13 .cse12 .cse3 .cse4 .cse7) (and .cse19 .cse0 .cse11 .cse2 .cse3 .cse4 .cse6) (and .cse8 .cse5 .cse0 .cse15 .cse16 .cse13 .cse12 .cse7) (and .cse0 .cse1 .cse18 .cse16 .cse3 .cse7) (and .cse8 .cse0 .cse1 .cse16 .cse3 .cse4 .cse7) (and .cse8 .cse0 .cse11 .cse13 .cse2 .cse3) (and .cse19 .cse0 .cse10 .cse11 .cse16 .cse3 .cse4 .cse7) (and .cse19 .cse0 .cse9 .cse10 .cse11 .cse18 .cse2 .cse6) (and .cse0 .cse10 .cse13 .cse2 .cse3 .cse6) .cse22 (and .cse8 .cse0 .cse15 .cse16 .cse12 .cse4) (and .cse0 .cse10 .cse11 .cse16 .cse13 .cse3 .cse7) (and .cse5 .cse0 .cse10 .cse3 .cse7) (and .cse8 .cse5 .cse0 .cse10 .cse15 .cse16 .cse13 .cse2) (and .cse0 .cse1 .cse2 .cse3 .cse6) (and .cse0 .cse9 .cse1 .cse18 .cse13 .cse2 .cse4 .cse6) (and .cse8 .cse0 .cse9 .cse12 .cse2 .cse6) (and .cse8 .cse0 .cse11 .cse16 .cse13 .cse12 .cse3 .cse7) (and .cse8 .cse20 .cse0 .cse9 .cse11 .cse2 .cse4) (and .cse8 .cse0 .cse9 .cse1 .cse2 .cse6) (and .cse0 .cse9 .cse10 .cse18 .cse6 .cse7) (and .cse17 .cse7) (and .cse5 .cse0 .cse9 .cse10 .cse15 .cse21 .cse13 .cse4) (and .cse5 .cse0 .cse16 .cse13 .cse12 .cse3 .cse4 .cse7) (and .cse0 .cse10 .cse21 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse18 .cse3 .cse4 .cse7) (and .cse14 .cse0 .cse15 .cse11 .cse18 .cse16 .cse12 .cse2) (and .cse0 .cse9 .cse1 .cse21 .cse18 .cse4 .cse7))))) [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L861 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,267 INFO L858 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,268 INFO L858 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-12-06 19:46:08,269 INFO L858 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L854 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse8 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse9 (= ~a12~0 1)) (.cse10 (<= ~a3~0 0)) (.cse4 (= ~a27~0 1)) (.cse16 (= ~a11~0 1))) (let ((.cse3 (<= ~a12~0 0)) (.cse6 (not .cse16)) (.cse22 (and .cse8 .cse0 .cse9 .cse10 .cse4))) (let ((.cse19 (<= ~a7~0 0)) (.cse20 (<= ~a10~0 0)) (.cse17 (or (and .cse8 .cse0 .cse10 .cse3 .cse4 .cse6) .cse22)) (.cse13 (<= ~a23~0 0)) (.cse5 (<= ~a20~0 0)) (.cse14 (= ~a25~0 ~a11~0)) (.cse15 (= ~a12~0 ~a11~0)) (.cse11 (= ~a16~0 1)) (.cse12 (= ~a3~0 1)) (.cse2 (= ~a6~0 1)) (.cse1 (<= 2 ~a3~0)) (.cse21 (= ~a11~0 ~a6~0)) (.cse18 (<= ~a26~0 0)) (.cse7 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse3 .cse6 .cse7) (and .cse8 .cse5 .cse0 .cse9 .cse10 .cse11 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse1 .cse7) (and .cse0 .cse12 .cse2 .cse3 .cse4 .cse6) (and .cse0 .cse10 .cse13 .cse3 .cse6 .cse7) (and .cse8 .cse14 .cse0 .cse15 .cse16 .cse12 .cse7) (and .cse8 .cse0 .cse10 .cse11 .cse2 .cse3 .cse6) (and .cse8 .cse0 .cse10 .cse15 .cse11 .cse16 .cse2) (and .cse17 .cse2) (and .cse5 .cse0 .cse18 .cse3 .cse6 .cse7) (and .cse19 .cse0 .cse1 .cse15 .cse11 .cse16 .cse2 .cse4) (and .cse0 .cse11 .cse16 .cse12 .cse3 .cse4 .cse7) (and .cse8 .cse5 .cse0 .cse3 .cse6 .cse7) (and .cse14 .cse0 .cse10 .cse13 .cse3 .cse7) (and .cse0 .cse9 .cse18 .cse13 .cse12 .cse2 .cse6) (and .cse8 .cse20 .cse0 .cse9 .cse21 .cse4 .cse7) (and .cse8 .cse0 .cse15 .cse11 .cse16 .cse7) (and .cse8 .cse0 .cse10 .cse11 .cse16 .cse3 .cse7) (and .cse8 .cse0 .cse21 .cse2 .cse3) (and .cse5 .cse0 .cse2 .cse3 .cse6) (and .cse8 .cse14 .cse0 .cse10 .cse15 .cse16 .cse2) (and .cse0 .cse9 .cse1 .cse11 .cse18 .cse2 .cse6) (and .cse5 .cse0 .cse9 .cse13 .cse12 .cse2 .cse6) (and .cse8 .cse0 .cse16 .cse13 .cse12 .cse3 .cse4 .cse7) (and .cse19 .cse0 .cse11 .cse2 .cse3 .cse4 .cse6) (and .cse8 .cse5 .cse0 .cse15 .cse16 .cse13 .cse12 .cse7) (and .cse0 .cse1 .cse18 .cse16 .cse3 .cse7) (and .cse8 .cse0 .cse1 .cse16 .cse3 .cse4 .cse7) (and .cse8 .cse0 .cse11 .cse13 .cse2 .cse3) (and .cse19 .cse0 .cse10 .cse11 .cse16 .cse3 .cse4 .cse7) (and .cse19 .cse0 .cse9 .cse10 .cse11 .cse18 .cse2 .cse6) (and .cse0 .cse10 .cse13 .cse2 .cse3 .cse6) .cse22 (and .cse8 .cse0 .cse15 .cse16 .cse12 .cse4) (and .cse0 .cse10 .cse11 .cse16 .cse13 .cse3 .cse7) (and .cse5 .cse0 .cse10 .cse3 .cse7) (and .cse8 .cse5 .cse0 .cse10 .cse15 .cse16 .cse13 .cse2) (and .cse0 .cse1 .cse2 .cse3 .cse6) (and .cse0 .cse9 .cse1 .cse18 .cse13 .cse2 .cse4 .cse6) (and .cse8 .cse0 .cse9 .cse12 .cse2 .cse6) (and .cse8 .cse0 .cse11 .cse16 .cse13 .cse12 .cse3 .cse7) (and .cse8 .cse20 .cse0 .cse9 .cse11 .cse2 .cse4) (and .cse8 .cse0 .cse9 .cse1 .cse2 .cse6) (and .cse0 .cse9 .cse10 .cse18 .cse6 .cse7) (and .cse17 .cse7) (and .cse5 .cse0 .cse9 .cse10 .cse15 .cse21 .cse13 .cse4) (and .cse5 .cse0 .cse16 .cse13 .cse12 .cse3 .cse4 .cse7) (and .cse0 .cse10 .cse21 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse18 .cse3 .cse4 .cse7) (and .cse14 .cse0 .cse15 .cse11 .cse18 .cse16 .cse12 .cse2) (and .cse0 .cse9 .cse1 .cse21 .cse18 .cse4 .cse7))))) [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,270 INFO L858 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-12-06 19:46:08,271 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,272 INFO L858 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-12-06 19:46:08,273 INFO L858 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,274 INFO L858 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,275 INFO L858 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,276 INFO L858 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-12-06 19:46:08,279 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:46:08,281 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:46:08,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:46:08 BoogieIcfgContainer [2021-12-06 19:46:08,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:46:08,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:46:08,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:46:08,315 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:46:08,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:38:48" (3/4) ... [2021-12-06 19:46:08,317 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 19:46:08,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 19:46:08,345 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 19:46:08,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 19:46:08,351 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 19:46:08,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 19:46:08,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:46:08,486 INFO L158 Benchmark]: Toolchain (without parser) took 441556.22ms. Allocated memory was 111.1MB in the beginning and 11.6GB in the end (delta: 11.5GB). Free memory was 63.7MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 10.2GB. Max. memory is 16.1GB. [2021-12-06 19:46:08,486 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:46:08,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.54ms. Allocated memory is still 111.1MB. Free memory was 63.5MB in the beginning and 76.4MB in the end (delta: -12.9MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2021-12-06 19:46:08,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.44ms. Allocated memory is still 111.1MB. Free memory was 76.4MB in the beginning and 61.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 19:46:08,487 INFO L158 Benchmark]: Boogie Preprocessor took 68.32ms. Allocated memory is still 111.1MB. Free memory was 61.7MB in the beginning and 51.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 19:46:08,487 INFO L158 Benchmark]: RCFGBuilder took 1201.43ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 51.8MB in the beginning and 93.6MB in the end (delta: -41.7MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2021-12-06 19:46:08,487 INFO L158 Benchmark]: TraceAbstraction took 439431.93ms. Allocated memory was 138.4MB in the beginning and 11.6GB in the end (delta: 11.5GB). Free memory was 93.6MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 10.5GB. Max. memory is 16.1GB. [2021-12-06 19:46:08,488 INFO L158 Benchmark]: Witness Printer took 171.28ms. Allocated memory is still 11.6GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-12-06 19:46:08,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 592.54ms. Allocated memory is still 111.1MB. Free memory was 63.5MB in the beginning and 76.4MB in the end (delta: -12.9MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.44ms. Allocated memory is still 111.1MB. Free memory was 76.4MB in the beginning and 61.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.32ms. Allocated memory is still 111.1MB. Free memory was 61.7MB in the beginning and 51.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1201.43ms. Allocated memory was 111.1MB in the beginning and 138.4MB in the end (delta: 27.3MB). Free memory was 51.8MB in the beginning and 93.6MB in the end (delta: -41.7MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * TraceAbstraction took 439431.93ms. Allocated memory was 138.4MB in the beginning and 11.6GB in the end (delta: 11.5GB). Free memory was 93.6MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 10.5GB. Max. memory is 16.1GB. * Witness Printer took 171.28ms. Allocated memory is still 11.6GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1600]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 439.3s, OverallIterations: 26, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.5s, AutomataDifference: 27.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 367.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5001 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5001 mSDsluCounter, 6882 SdHoareTripleChecker+Invalid, 9.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1646 mSDsCounter, 2396 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14381 IncrementalHoareTripleChecker+Invalid, 16777 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2396 mSolverCounterUnsat, 5236 mSDtfsCounter, 14381 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6867 GetRequests, 6808 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353286occurred in iteration=24, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 28.3s AutomataMinimizationTime, 26 MinimizatonAttempts, 136944 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 3305 NumberOfFragments, 2297 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 246.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 514956 FormulaSimplificationTreeSizeReductionInter, 121.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 17645 NumberOfCodeBlocks, 17645 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 17606 ConstructedInterpolants, 0 QuantifiedInterpolants, 36225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 11176 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 39 InterpolantComputations, 26 PerfectInterpolantSequences, 23454/23990 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((a5 == 1 && 2 <= a3) && a6 == 1) && a12 <= 0) && a27 == 1) || (((((a20 <= 0 && a5 == 1) && 2 <= a3) && a12 <= 0) && !(a11 == 1)) && a6 <= 0)) || (((((((a26 == 1 && a20 <= 0) && a5 == 1) && a12 == 1) && a3 <= 0) && a16 == 1) && !(a11 == 1)) && a6 <= 0)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a6 <= 0)) || (((((a5 == 1 && a3 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && !(a11 == 1))) || (((((a5 == 1 && a3 <= 0) && a23 <= 0) && a12 <= 0) && !(a11 == 1)) && a6 <= 0)) || ((((((a26 == 1 && a25 == a11) && a5 == 1) && a12 == a11) && a11 == 1) && a3 == 1) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a3 <= 0) && a16 == 1) && a6 == 1) && a12 <= 0) && !(a11 == 1))) || ((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 == a11) && a16 == 1) && a11 == 1) && a6 == 1)) || (((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 <= 0) && a27 == 1) && !(a11 == 1)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a27 == 1)) && a6 == 1)) || (((((a20 <= 0 && a5 == 1) && a26 <= 0) && a12 <= 0) && !(a11 == 1)) && a6 <= 0)) || (((((((a7 <= 0 && a5 == 1) && 2 <= a3) && a12 == a11) && a16 == 1) && a11 == 1) && a6 == 1) && a27 == 1)) || ((((((a5 == 1 && a16 == 1) && a11 == 1) && a3 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((a26 == 1 && a20 <= 0) && a5 == 1) && a12 <= 0) && !(a11 == 1)) && a6 <= 0)) || (((((a25 == a11 && a5 == 1) && a3 <= 0) && a23 <= 0) && a12 <= 0) && a6 <= 0)) || ((((((a5 == 1 && a12 == 1) && a26 <= 0) && a23 <= 0) && a3 == 1) && a6 == 1) && !(a11 == 1))) || ((((((a26 == 1 && a10 <= 0) && a5 == 1) && a12 == 1) && a11 == a6) && a27 == 1) && a6 <= 0)) || (((((a26 == 1 && a5 == 1) && a12 == a11) && a16 == 1) && a11 == 1) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a3 <= 0) && a16 == 1) && a11 == 1) && a12 <= 0) && a6 <= 0)) || ((((a26 == 1 && a5 == 1) && a11 == a6) && a6 == 1) && a12 <= 0)) || ((((a20 <= 0 && a5 == 1) && a6 == 1) && a12 <= 0) && !(a11 == 1))) || ((((((a26 == 1 && a25 == a11) && a5 == 1) && a3 <= 0) && a12 == a11) && a11 == 1) && a6 == 1)) || ((((((a5 == 1 && a12 == 1) && 2 <= a3) && a16 == 1) && a26 <= 0) && a6 == 1) && !(a11 == 1))) || ((((((a20 <= 0 && a5 == 1) && a12 == 1) && a23 <= 0) && a3 == 1) && a6 == 1) && !(a11 == 1))) || (((((((a26 == 1 && a5 == 1) && a11 == 1) && a23 <= 0) && a3 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || ((((((a7 <= 0 && a5 == 1) && a16 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && !(a11 == 1))) || (((((((a26 == 1 && a20 <= 0) && a5 == 1) && a12 == a11) && a11 == 1) && a23 <= 0) && a3 == 1) && a6 <= 0)) || (((((a5 == 1 && 2 <= a3) && a26 <= 0) && a11 == 1) && a12 <= 0) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && 2 <= a3) && a11 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((a26 == 1 && a5 == 1) && a16 == 1) && a23 <= 0) && a6 == 1) && a12 <= 0)) || (((((((a7 <= 0 && a5 == 1) && a3 <= 0) && a16 == 1) && a11 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((((a7 <= 0 && a5 == 1) && a12 == 1) && a3 <= 0) && a16 == 1) && a26 <= 0) && a6 == 1) && !(a11 == 1))) || (((((a5 == 1 && a3 <= 0) && a23 <= 0) && a6 == 1) && a12 <= 0) && !(a11 == 1))) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == a11) && a11 == 1) && a3 == 1) && a27 == 1)) || ((((((a5 == 1 && a3 <= 0) && a16 == 1) && a11 == 1) && a23 <= 0) && a12 <= 0) && a6 <= 0)) || ((((a20 <= 0 && a5 == 1) && a3 <= 0) && a12 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a20 <= 0) && a5 == 1) && a3 <= 0) && a12 == a11) && a11 == 1) && a23 <= 0) && a6 == 1)) || ((((a5 == 1 && 2 <= a3) && a6 == 1) && a12 <= 0) && !(a11 == 1))) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a26 <= 0) && a23 <= 0) && a6 == 1) && a27 == 1) && !(a11 == 1))) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a3 == 1) && a6 == 1) && !(a11 == 1))) || (((((((a26 == 1 && a5 == 1) && a16 == 1) && a11 == 1) && a23 <= 0) && a3 == 1) && a12 <= 0) && a6 <= 0)) || ((((((a26 == 1 && a10 <= 0) && a5 == 1) && a12 == 1) && a16 == 1) && a6 == 1) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a6 == 1) && !(a11 == 1))) || (((((a5 == 1 && a12 == 1) && a3 <= 0) && a26 <= 0) && !(a11 == 1)) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 <= 0) && a27 == 1) && !(a11 == 1)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a27 == 1)) && a6 <= 0)) || (((((((a20 <= 0 && a5 == 1) && a12 == 1) && a3 <= 0) && a12 == a11) && a11 == a6) && a23 <= 0) && a27 == 1)) || (((((((a20 <= 0 && a5 == 1) && a11 == 1) && a23 <= 0) && a3 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((a5 == 1 && a3 <= 0) && a11 == a6) && a6 == 1) && a12 <= 0) && a27 == 1)) || (((((a20 <= 0 && a5 == 1) && a26 <= 0) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((((a25 == a11 && a5 == 1) && a12 == a11) && a16 == 1) && a26 <= 0) && a11 == 1) && a3 == 1) && a6 == 1)) || ((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == a6) && a26 <= 0) && a27 == 1) && a6 <= 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((a5 == 1 && 2 <= a3) && a6 == 1) && a12 <= 0) && a27 == 1) || (((((a20 <= 0 && a5 == 1) && 2 <= a3) && a12 <= 0) && !(a11 == 1)) && a6 <= 0)) || (((((((a26 == 1 && a20 <= 0) && a5 == 1) && a12 == 1) && a3 <= 0) && a16 == 1) && !(a11 == 1)) && a6 <= 0)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a6 <= 0)) || (((((a5 == 1 && a3 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && !(a11 == 1))) || (((((a5 == 1 && a3 <= 0) && a23 <= 0) && a12 <= 0) && !(a11 == 1)) && a6 <= 0)) || ((((((a26 == 1 && a25 == a11) && a5 == 1) && a12 == a11) && a11 == 1) && a3 == 1) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a3 <= 0) && a16 == 1) && a6 == 1) && a12 <= 0) && !(a11 == 1))) || ((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 == a11) && a16 == 1) && a11 == 1) && a6 == 1)) || (((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 <= 0) && a27 == 1) && !(a11 == 1)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a27 == 1)) && a6 == 1)) || (((((a20 <= 0 && a5 == 1) && a26 <= 0) && a12 <= 0) && !(a11 == 1)) && a6 <= 0)) || (((((((a7 <= 0 && a5 == 1) && 2 <= a3) && a12 == a11) && a16 == 1) && a11 == 1) && a6 == 1) && a27 == 1)) || ((((((a5 == 1 && a16 == 1) && a11 == 1) && a3 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((a26 == 1 && a20 <= 0) && a5 == 1) && a12 <= 0) && !(a11 == 1)) && a6 <= 0)) || (((((a25 == a11 && a5 == 1) && a3 <= 0) && a23 <= 0) && a12 <= 0) && a6 <= 0)) || ((((((a5 == 1 && a12 == 1) && a26 <= 0) && a23 <= 0) && a3 == 1) && a6 == 1) && !(a11 == 1))) || ((((((a26 == 1 && a10 <= 0) && a5 == 1) && a12 == 1) && a11 == a6) && a27 == 1) && a6 <= 0)) || (((((a26 == 1 && a5 == 1) && a12 == a11) && a16 == 1) && a11 == 1) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a3 <= 0) && a16 == 1) && a11 == 1) && a12 <= 0) && a6 <= 0)) || ((((a26 == 1 && a5 == 1) && a11 == a6) && a6 == 1) && a12 <= 0)) || ((((a20 <= 0 && a5 == 1) && a6 == 1) && a12 <= 0) && !(a11 == 1))) || ((((((a26 == 1 && a25 == a11) && a5 == 1) && a3 <= 0) && a12 == a11) && a11 == 1) && a6 == 1)) || ((((((a5 == 1 && a12 == 1) && 2 <= a3) && a16 == 1) && a26 <= 0) && a6 == 1) && !(a11 == 1))) || ((((((a20 <= 0 && a5 == 1) && a12 == 1) && a23 <= 0) && a3 == 1) && a6 == 1) && !(a11 == 1))) || (((((((a26 == 1 && a5 == 1) && a11 == 1) && a23 <= 0) && a3 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || ((((((a7 <= 0 && a5 == 1) && a16 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && !(a11 == 1))) || (((((((a26 == 1 && a20 <= 0) && a5 == 1) && a12 == a11) && a11 == 1) && a23 <= 0) && a3 == 1) && a6 <= 0)) || (((((a5 == 1 && 2 <= a3) && a26 <= 0) && a11 == 1) && a12 <= 0) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && 2 <= a3) && a11 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((a26 == 1 && a5 == 1) && a16 == 1) && a23 <= 0) && a6 == 1) && a12 <= 0)) || (((((((a7 <= 0 && a5 == 1) && a3 <= 0) && a16 == 1) && a11 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((((a7 <= 0 && a5 == 1) && a12 == 1) && a3 <= 0) && a16 == 1) && a26 <= 0) && a6 == 1) && !(a11 == 1))) || (((((a5 == 1 && a3 <= 0) && a23 <= 0) && a6 == 1) && a12 <= 0) && !(a11 == 1))) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == a11) && a11 == 1) && a3 == 1) && a27 == 1)) || ((((((a5 == 1 && a3 <= 0) && a16 == 1) && a11 == 1) && a23 <= 0) && a12 <= 0) && a6 <= 0)) || ((((a20 <= 0 && a5 == 1) && a3 <= 0) && a12 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a20 <= 0) && a5 == 1) && a3 <= 0) && a12 == a11) && a11 == 1) && a23 <= 0) && a6 == 1)) || ((((a5 == 1 && 2 <= a3) && a6 == 1) && a12 <= 0) && !(a11 == 1))) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a26 <= 0) && a23 <= 0) && a6 == 1) && a27 == 1) && !(a11 == 1))) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a3 == 1) && a6 == 1) && !(a11 == 1))) || (((((((a26 == 1 && a5 == 1) && a16 == 1) && a11 == 1) && a23 <= 0) && a3 == 1) && a12 <= 0) && a6 <= 0)) || ((((((a26 == 1 && a10 <= 0) && a5 == 1) && a12 == 1) && a16 == 1) && a6 == 1) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a6 == 1) && !(a11 == 1))) || (((((a5 == 1 && a12 == 1) && a3 <= 0) && a26 <= 0) && !(a11 == 1)) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 <= 0) && a27 == 1) && !(a11 == 1)) || ((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a27 == 1)) && a6 <= 0)) || (((((((a20 <= 0 && a5 == 1) && a12 == 1) && a3 <= 0) && a12 == a11) && a11 == a6) && a23 <= 0) && a27 == 1)) || (((((((a20 <= 0 && a5 == 1) && a11 == 1) && a23 <= 0) && a3 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((a5 == 1 && a3 <= 0) && a11 == a6) && a6 == 1) && a12 <= 0) && a27 == 1)) || (((((a20 <= 0 && a5 == 1) && a26 <= 0) && a12 <= 0) && a27 == 1) && a6 <= 0)) || (((((((a25 == a11 && a5 == 1) && a12 == a11) && a16 == 1) && a26 <= 0) && a11 == 1) && a3 == 1) && a6 == 1)) || ((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == a6) && a26 <= 0) && a27 == 1) && a6 <= 0) RESULT: Ultimate proved your program to be correct! [2021-12-06 19:46:08,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cff60c-f253-4b9a-8585-3dcc86636913/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE