./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF --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 2521d3888c3910ac16b8a52868332f768d7d80524e896b9e06e11f157c249614 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:55:55,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:55:55,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:55:55,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:55:55,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:55:55,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:55:55,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:55:55,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:55:55,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:55:55,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:55:55,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:55:55,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:55:55,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:55:55,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:55:56,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:55:56,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:55:56,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:55:56,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:55:56,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:55:56,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:55:56,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:55:56,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:55:56,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:55:56,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:55:56,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:55:56,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:55:56,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:55:56,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:55:56,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:55:56,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:55:56,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:55:56,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:55:56,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:55:56,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:55:56,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:55:56,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:55:56,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:55:56,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:55:56,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:55:56,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:55:56,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:55:56,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 05:55:56,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:55:56,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:55:56,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:55:56,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:55:56,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:55:56,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:55:56,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:55:56,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:55:56,096 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:55:56,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:55:56,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:55:56,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:55:56,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:55:56,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:55:56,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:55:56,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:55:56,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:55:56,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:55:56,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:55:56,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:55:56,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:55:56,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:55:56,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:55:56,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:55:56,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:55:56,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:55:56,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:55:56,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:55:56,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:55:56,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:55:56,100 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:55:56,100 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:55:56,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:55:56,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:55:56,101 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_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2521d3888c3910ac16b8a52868332f768d7d80524e896b9e06e11f157c249614 [2021-11-20 05:55:56,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:55:56,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:55:56,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:55:56,355 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:55:56,356 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:55:56,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/eca-rers2012/Problem11_label11.c [2021-11-20 05:55:56,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/data/05d521692/710f3d1ac9f44a0b9d66cce32c451b0b/FLAG648224383 [2021-11-20 05:55:57,079 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:55:57,080 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/sv-benchmarks/c/eca-rers2012/Problem11_label11.c [2021-11-20 05:55:57,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/data/05d521692/710f3d1ac9f44a0b9d66cce32c451b0b/FLAG648224383 [2021-11-20 05:55:57,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/data/05d521692/710f3d1ac9f44a0b9d66cce32c451b0b [2021-11-20 05:55:57,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:55:57,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:55:57,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:55:57,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:55:57,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:55:57,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:55:57" (1/1) ... [2021-11-20 05:55:57,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3fb3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:57, skipping insertion in model container [2021-11-20 05:55:57,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:55:57" (1/1) ... [2021-11-20 05:55:57,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:55:57,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:55:57,598 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_601c9dc5-ed29-4184-9ccc-91d2ca348193/sv-benchmarks/c/eca-rers2012/Problem11_label11.c[8791,8804] [2021-11-20 05:55:57,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:55:57,953 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:55:58,003 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_601c9dc5-ed29-4184-9ccc-91d2ca348193/sv-benchmarks/c/eca-rers2012/Problem11_label11.c[8791,8804] [2021-11-20 05:55:58,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:55:58,152 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:55:58,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58 WrapperNode [2021-11-20 05:55:58,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:55:58,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:55:58,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:55:58,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:55:58,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,306 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-11-20 05:55:58,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:55:58,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:55:58,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:55:58,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:55:58,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:55:58,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:55:58,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:55:58,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:55:58,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (1/1) ... [2021-11-20 05:55:58,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:55:58,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:55:58,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:55:58,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:55:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:55:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:55:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:55:58,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:55:58,621 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:55:58,623 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:56:00,091 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:56:00,109 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:56:00,109 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:56:00,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:56:00 BoogieIcfgContainer [2021-11-20 05:56:00,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:56:00,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:56:00,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:56:00,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:56:00,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:55:57" (1/3) ... [2021-11-20 05:56:00,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397d1be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:56:00, skipping insertion in model container [2021-11-20 05:56:00,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:58" (2/3) ... [2021-11-20 05:56:00,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397d1be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:56:00, skipping insertion in model container [2021-11-20 05:56:00,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:56:00" (3/3) ... [2021-11-20 05:56:00,123 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label11.c [2021-11-20 05:56:00,128 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:56:00,128 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:56:00,196 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:56:00,206 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:56:00,207 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:56:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 05:56:00,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:00,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:00,259 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:00,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1818267785, now seen corresponding path program 1 times [2021-11-20 05:56:00,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:00,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231399264] [2021-11-20 05:56:00,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:00,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:00,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:56:00,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:00,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231399264] [2021-11-20 05:56:00,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231399264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:00,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:00,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:56:00,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315602690] [2021-11-20 05:56:00,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:00,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:00,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:00,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:00,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:00,656 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 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 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:01,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:01,744 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2021-11-20 05:56:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:01,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-20 05:56:01,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:01,771 INFO L225 Difference]: With dead ends: 769 [2021-11-20 05:56:01,772 INFO L226 Difference]: Without dead ends: 422 [2021-11-20 05:56:01,779 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 [2021-11-20 05:56:01,785 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 179 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:01,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 163 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 05:56:01,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-20 05:56:01,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2021-11-20 05:56:01,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:01,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2021-11-20 05:56:01,904 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 61 [2021-11-20 05:56:01,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:01,904 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2021-11-20 05:56:01,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:01,905 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2021-11-20 05:56:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 05:56:01,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:01,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:01,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:56:01,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:01,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:01,921 INFO L85 PathProgramCache]: Analyzing trace with hash -622668213, now seen corresponding path program 1 times [2021-11-20 05:56:01,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:01,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724947333] [2021-11-20 05:56:01,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:01,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:02,091 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:56:02,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:02,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724947333] [2021-11-20 05:56:02,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724947333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:02,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:02,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:56:02,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516682643] [2021-11-20 05:56:02,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:02,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:02,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:02,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:02,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:02,096 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:02,882 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2021-11-20 05:56:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:02,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-20 05:56:02,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:02,890 INFO L225 Difference]: With dead ends: 1194 [2021-11-20 05:56:02,890 INFO L226 Difference]: Without dead ends: 784 [2021-11-20 05:56:02,892 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 [2021-11-20 05:56:02,893 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 175 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:02,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 154 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 05:56:02,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-11-20 05:56:02,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2021-11-20 05:56:02,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.3742017879948913) internal successors, (1076), 783 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2021-11-20 05:56:02,921 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 127 [2021-11-20 05:56:02,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:02,921 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2021-11-20 05:56:02,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:02,922 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2021-11-20 05:56:02,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-20 05:56:02,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:02,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:02,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:56:02,926 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:02,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:02,927 INFO L85 PathProgramCache]: Analyzing trace with hash 834203477, now seen corresponding path program 1 times [2021-11-20 05:56:02,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:02,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106885331] [2021-11-20 05:56:02,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:02,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:56:03,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:03,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106885331] [2021-11-20 05:56:03,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106885331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:03,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:03,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:56:03,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378964562] [2021-11-20 05:56:03,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:03,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:03,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:03,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:03,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:03,052 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:03,830 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2021-11-20 05:56:03,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:03,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2021-11-20 05:56:03,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:03,838 INFO L225 Difference]: With dead ends: 1936 [2021-11-20 05:56:03,838 INFO L226 Difference]: Without dead ends: 1154 [2021-11-20 05:56:03,839 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 [2021-11-20 05:56:03,841 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:03,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:56:03,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-11-20 05:56:03,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2021-11-20 05:56:03,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.2699652777777777) internal successors, (1463), 1152 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2021-11-20 05:56:03,871 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 131 [2021-11-20 05:56:03,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:03,872 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2021-11-20 05:56:03,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2021-11-20 05:56:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-20 05:56:03,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:03,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:03,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:56:03,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:03,878 INFO L85 PathProgramCache]: Analyzing trace with hash 461291020, now seen corresponding path program 1 times [2021-11-20 05:56:03,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:03,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209207390] [2021-11-20 05:56:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:03,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:56:03,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:03,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209207390] [2021-11-20 05:56:03,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209207390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:03,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:03,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:03,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347990740] [2021-11-20 05:56:03,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:03,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:03,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:03,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:03,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:03,991 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:04,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:04,759 INFO L93 Difference]: Finished difference Result 2679 states and 3481 transitions. [2021-11-20 05:56:04,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:04,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-11-20 05:56:04,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:04,770 INFO L225 Difference]: With dead ends: 2679 [2021-11-20 05:56:04,771 INFO L226 Difference]: Without dead ends: 1712 [2021-11-20 05:56:04,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:04,774 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 145 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:04,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 332 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:56:04,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-11-20 05:56:04,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1521. [2021-11-20 05:56:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.255921052631579) internal successors, (1909), 1520 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:04,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1909 transitions. [2021-11-20 05:56:04,812 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1909 transitions. Word has length 173 [2021-11-20 05:56:04,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:04,813 INFO L470 AbstractCegarLoop]: Abstraction has 1521 states and 1909 transitions. [2021-11-20 05:56:04,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1909 transitions. [2021-11-20 05:56:04,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-20 05:56:04,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:04,819 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:04,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:56:04,820 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:04,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:04,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1875503464, now seen corresponding path program 1 times [2021-11-20 05:56:04,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:04,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328858458] [2021-11-20 05:56:04,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:04,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:05,018 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-20 05:56:05,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:05,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328858458] [2021-11-20 05:56:05,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328858458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:05,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:05,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:05,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374705514] [2021-11-20 05:56:05,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:05,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:05,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:05,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:05,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:05,024 INFO L87 Difference]: Start difference. First operand 1521 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:05,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:05,855 INFO L93 Difference]: Finished difference Result 3970 states and 4986 transitions. [2021-11-20 05:56:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:05,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 243 [2021-11-20 05:56:05,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:05,870 INFO L225 Difference]: With dead ends: 3970 [2021-11-20 05:56:05,870 INFO L226 Difference]: Without dead ends: 2451 [2021-11-20 05:56:05,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:05,874 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 180 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:05,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 159 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 05:56:05,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2451 states. [2021-11-20 05:56:05,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2451 to 2450. [2021-11-20 05:56:05,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2449 states have (on average 1.2339730502245814) internal successors, (3022), 2449 states have internal predecessors, (3022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:05,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3022 transitions. [2021-11-20 05:56:05,931 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3022 transitions. Word has length 243 [2021-11-20 05:56:05,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:05,932 INFO L470 AbstractCegarLoop]: Abstraction has 2450 states and 3022 transitions. [2021-11-20 05:56:05,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:05,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3022 transitions. [2021-11-20 05:56:05,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-20 05:56:05,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:05,939 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:05,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:56:05,939 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash -575038418, now seen corresponding path program 1 times [2021-11-20 05:56:05,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:05,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604429973] [2021-11-20 05:56:05,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:05,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-20 05:56:06,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:06,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604429973] [2021-11-20 05:56:06,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604429973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:06,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:06,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:06,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014039222] [2021-11-20 05:56:06,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:06,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:06,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:06,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:06,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:06,091 INFO L87 Difference]: Start difference. First operand 2450 states and 3022 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:07,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:07,045 INFO L93 Difference]: Finished difference Result 5638 states and 7017 transitions. [2021-11-20 05:56:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:07,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 280 [2021-11-20 05:56:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:07,064 INFO L225 Difference]: With dead ends: 5638 [2021-11-20 05:56:07,065 INFO L226 Difference]: Without dead ends: 3190 [2021-11-20 05:56:07,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:07,069 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 140 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:07,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 378 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 05:56:07,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2021-11-20 05:56:07,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 2630. [2021-11-20 05:56:07,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2630 states, 2629 states have (on average 1.2286040319513123) internal successors, (3230), 2629 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2630 states to 2630 states and 3230 transitions. [2021-11-20 05:56:07,141 INFO L78 Accepts]: Start accepts. Automaton has 2630 states and 3230 transitions. Word has length 280 [2021-11-20 05:56:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:07,142 INFO L470 AbstractCegarLoop]: Abstraction has 2630 states and 3230 transitions. [2021-11-20 05:56:07,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2630 states and 3230 transitions. [2021-11-20 05:56:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-20 05:56:07,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:07,151 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-11-20 05:56:07,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:56:07,152 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:07,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:07,153 INFO L85 PathProgramCache]: Analyzing trace with hash 94013981, now seen corresponding path program 1 times [2021-11-20 05:56:07,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:07,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920906760] [2021-11-20 05:56:07,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:07,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:56:07,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:07,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920906760] [2021-11-20 05:56:07,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920906760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:07,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:07,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:07,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058755263] [2021-11-20 05:56:07,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:07,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:07,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:07,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:07,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:56:07,332 INFO L87 Difference]: Start difference. First operand 2630 states and 3230 transitions. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:08,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:08,728 INFO L93 Difference]: Finished difference Result 8042 states and 9930 transitions. [2021-11-20 05:56:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:08,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2021-11-20 05:56:08,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:08,761 INFO L225 Difference]: With dead ends: 8042 [2021-11-20 05:56:08,761 INFO L226 Difference]: Without dead ends: 5414 [2021-11-20 05:56:08,764 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 [2021-11-20 05:56:08,768 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 231 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:08,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 91 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 05:56:08,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2021-11-20 05:56:08,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 5227. [2021-11-20 05:56:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 1.2085725220053578) internal successors, (6316), 5226 states have internal predecessors, (6316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:08,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 6316 transitions. [2021-11-20 05:56:08,888 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 6316 transitions. Word has length 321 [2021-11-20 05:56:08,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:08,889 INFO L470 AbstractCegarLoop]: Abstraction has 5227 states and 6316 transitions. [2021-11-20 05:56:08,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 6316 transitions. [2021-11-20 05:56:08,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-20 05:56:08,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:08,901 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:08,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:56:08,902 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:08,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:08,903 INFO L85 PathProgramCache]: Analyzing trace with hash 471217609, now seen corresponding path program 1 times [2021-11-20 05:56:08,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:08,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848658435] [2021-11-20 05:56:08,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:08,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:09,092 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-20 05:56:09,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:09,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848658435] [2021-11-20 05:56:09,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848658435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:09,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:09,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:09,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165333358] [2021-11-20 05:56:09,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:09,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:09,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:09,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:09,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:09,096 INFO L87 Difference]: Start difference. First operand 5227 states and 6316 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:09,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:09,877 INFO L93 Difference]: Finished difference Result 10081 states and 12247 transitions. [2021-11-20 05:56:09,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:09,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 367 [2021-11-20 05:56:09,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:09,908 INFO L225 Difference]: With dead ends: 10081 [2021-11-20 05:56:09,909 INFO L226 Difference]: Without dead ends: 5224 [2021-11-20 05:56:09,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:09,915 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 151 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:09,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 304 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:56:09,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5224 states. [2021-11-20 05:56:10,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5224 to 5223. [2021-11-20 05:56:10,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 1.1721562619685943) internal successors, (6121), 5222 states have internal predecessors, (6121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:10,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 6121 transitions. [2021-11-20 05:56:10,070 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 6121 transitions. Word has length 367 [2021-11-20 05:56:10,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:10,074 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 6121 transitions. [2021-11-20 05:56:10,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 6121 transitions. [2021-11-20 05:56:10,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-11-20 05:56:10,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:10,087 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:10,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 05:56:10,089 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:10,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:10,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1789756958, now seen corresponding path program 1 times [2021-11-20 05:56:10,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:10,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735859449] [2021-11-20 05:56:10,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:10,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-11-20 05:56:10,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:10,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735859449] [2021-11-20 05:56:10,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735859449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:10,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:10,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:10,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685338291] [2021-11-20 05:56:10,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:10,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:10,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:10,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:10,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:10,261 INFO L87 Difference]: Start difference. First operand 5223 states and 6121 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:11,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:11,172 INFO L93 Difference]: Finished difference Result 11741 states and 13889 transitions. [2021-11-20 05:56:11,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:11,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 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 372 [2021-11-20 05:56:11,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:11,218 INFO L225 Difference]: With dead ends: 11741 [2021-11-20 05:56:11,218 INFO L226 Difference]: Without dead ends: 6888 [2021-11-20 05:56:11,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:11,227 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 118 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:11,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 362 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 05:56:11,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6888 states. [2021-11-20 05:56:11,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6888 to 6700. [2021-11-20 05:56:11,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6700 states, 6699 states have (on average 1.1576354679802956) internal successors, (7755), 6699 states have internal predecessors, (7755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6700 states to 6700 states and 7755 transitions. [2021-11-20 05:56:11,426 INFO L78 Accepts]: Start accepts. Automaton has 6700 states and 7755 transitions. Word has length 372 [2021-11-20 05:56:11,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:11,426 INFO L470 AbstractCegarLoop]: Abstraction has 6700 states and 7755 transitions. [2021-11-20 05:56:11,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6700 states and 7755 transitions. [2021-11-20 05:56:11,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-11-20 05:56:11,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:11,441 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:11,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:56:11,441 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash -152091538, now seen corresponding path program 1 times [2021-11-20 05:56:11,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:11,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752096536] [2021-11-20 05:56:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:11,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:11,637 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-20 05:56:11,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:11,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752096536] [2021-11-20 05:56:11,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752096536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:11,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:11,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:11,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029723149] [2021-11-20 05:56:11,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:11,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:11,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:11,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:11,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:11,656 INFO L87 Difference]: Start difference. First operand 6700 states and 7755 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 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) [2021-11-20 05:56:12,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:12,455 INFO L93 Difference]: Finished difference Result 16527 states and 19323 transitions. [2021-11-20 05:56:12,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:12,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 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 386 [2021-11-20 05:56:12,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:12,482 INFO L225 Difference]: With dead ends: 16527 [2021-11-20 05:56:12,483 INFO L226 Difference]: Without dead ends: 10197 [2021-11-20 05:56:12,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:12,492 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 158 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:12,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 130 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:56:12,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10197 states. [2021-11-20 05:56:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10197 to 9827. [2021-11-20 05:56:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9827 states, 9826 states have (on average 1.1501119478933441) internal successors, (11301), 9826 states have internal predecessors, (11301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9827 states to 9827 states and 11301 transitions. [2021-11-20 05:56:12,754 INFO L78 Accepts]: Start accepts. Automaton has 9827 states and 11301 transitions. Word has length 386 [2021-11-20 05:56:12,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:12,755 INFO L470 AbstractCegarLoop]: Abstraction has 9827 states and 11301 transitions. [2021-11-20 05:56:12,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 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) [2021-11-20 05:56:12,755 INFO L276 IsEmpty]: Start isEmpty. Operand 9827 states and 11301 transitions. [2021-11-20 05:56:12,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-11-20 05:56:12,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:12,775 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:12,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:56:12,776 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:12,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1552606349, now seen corresponding path program 1 times [2021-11-20 05:56:12,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:12,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484371184] [2021-11-20 05:56:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:12,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:12,951 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-20 05:56:12,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:12,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484371184] [2021-11-20 05:56:12,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484371184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:12,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:12,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:12,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753206344] [2021-11-20 05:56:12,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:12,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:12,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:12,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:12,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:12,954 INFO L87 Difference]: Start difference. First operand 9827 states and 11301 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:13,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:13,799 INFO L93 Difference]: Finished difference Result 21125 states and 24424 transitions. [2021-11-20 05:56:13,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:13,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 401 [2021-11-20 05:56:13,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:13,819 INFO L225 Difference]: With dead ends: 21125 [2021-11-20 05:56:13,819 INFO L226 Difference]: Without dead ends: 11668 [2021-11-20 05:56:13,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:13,830 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 130 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:13,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 77 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 05:56:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11668 states. [2021-11-20 05:56:14,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11668 to 11295. [2021-11-20 05:56:14,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11295 states, 11294 states have (on average 1.1512307419868957) internal successors, (13002), 11294 states have internal predecessors, (13002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:14,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11295 states to 11295 states and 13002 transitions. [2021-11-20 05:56:14,072 INFO L78 Accepts]: Start accepts. Automaton has 11295 states and 13002 transitions. Word has length 401 [2021-11-20 05:56:14,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:14,073 INFO L470 AbstractCegarLoop]: Abstraction has 11295 states and 13002 transitions. [2021-11-20 05:56:14,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:14,074 INFO L276 IsEmpty]: Start isEmpty. Operand 11295 states and 13002 transitions. [2021-11-20 05:56:14,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-20 05:56:14,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:14,086 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:14,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 05:56:14,087 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:14,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:14,087 INFO L85 PathProgramCache]: Analyzing trace with hash 111498109, now seen corresponding path program 1 times [2021-11-20 05:56:14,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:14,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015695184] [2021-11-20 05:56:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:14,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 490 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:56:14,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:14,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015695184] [2021-11-20 05:56:14,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015695184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:14,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:14,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:56:14,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789977610] [2021-11-20 05:56:14,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:14,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:14,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:14,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:14,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:56:14,289 INFO L87 Difference]: Start difference. First operand 11295 states and 13002 transitions. Second operand has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:15,494 INFO L93 Difference]: Finished difference Result 26118 states and 30099 transitions. [2021-11-20 05:56:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:15,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 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 402 [2021-11-20 05:56:15,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:15,527 INFO L225 Difference]: With dead ends: 26118 [2021-11-20 05:56:15,528 INFO L226 Difference]: Without dead ends: 15193 [2021-11-20 05:56:15,538 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 [2021-11-20 05:56:15,539 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 207 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:15,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 156 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 05:56:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15193 states. [2021-11-20 05:56:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15193 to 13713. [2021-11-20 05:56:15,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13713 states, 13712 states have (on average 1.1468786464410734) internal successors, (15726), 13712 states have internal predecessors, (15726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:15,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13713 states to 13713 states and 15726 transitions. [2021-11-20 05:56:15,758 INFO L78 Accepts]: Start accepts. Automaton has 13713 states and 15726 transitions. Word has length 402 [2021-11-20 05:56:15,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:15,759 INFO L470 AbstractCegarLoop]: Abstraction has 13713 states and 15726 transitions. [2021-11-20 05:56:15,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:15,759 INFO L276 IsEmpty]: Start isEmpty. Operand 13713 states and 15726 transitions. [2021-11-20 05:56:15,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-20 05:56:15,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:15,775 INFO L514 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:15,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 05:56:15,776 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:15,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1118876028, now seen corresponding path program 1 times [2021-11-20 05:56:15,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:15,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462387777] [2021-11-20 05:56:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:15,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:16,054 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 176 proven. 203 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-20 05:56:16,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:16,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462387777] [2021-11-20 05:56:16,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462387777] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:16,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074100475] [2021-11-20 05:56:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:16,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:16,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:16,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:16,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:56:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:16,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:56:16,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:56:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 441 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-20 05:56:17,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:56:17,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074100475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:17,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:56:17,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-20 05:56:17,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470846319] [2021-11-20 05:56:17,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:17,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:17,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:17,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:17,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:56:17,300 INFO L87 Difference]: Start difference. First operand 13713 states and 15726 transitions. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:18,873 INFO L93 Difference]: Finished difference Result 32407 states and 37378 transitions. [2021-11-20 05:56:18,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:18,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 412 [2021-11-20 05:56:18,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:18,905 INFO L225 Difference]: With dead ends: 32407 [2021-11-20 05:56:18,905 INFO L226 Difference]: Without dead ends: 19064 [2021-11-20 05:56:18,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:56:18,921 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 191 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:18,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 115 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 05:56:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19064 states. [2021-11-20 05:56:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19064 to 19052. [2021-11-20 05:56:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19052 states, 19051 states have (on average 1.1395202351582594) internal successors, (21709), 19051 states have internal predecessors, (21709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19052 states to 19052 states and 21709 transitions. [2021-11-20 05:56:19,230 INFO L78 Accepts]: Start accepts. Automaton has 19052 states and 21709 transitions. Word has length 412 [2021-11-20 05:56:19,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:19,231 INFO L470 AbstractCegarLoop]: Abstraction has 19052 states and 21709 transitions. [2021-11-20 05:56:19,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 19052 states and 21709 transitions. [2021-11-20 05:56:19,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-11-20 05:56:19,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:19,261 INFO L514 BasicCegarLoop]: trace histogram [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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:19,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:56:19,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:19,481 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:19,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:19,482 INFO L85 PathProgramCache]: Analyzing trace with hash -761542586, now seen corresponding path program 1 times [2021-11-20 05:56:19,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:19,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196236705] [2021-11-20 05:56:19,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:19,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2021-11-20 05:56:19,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:19,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196236705] [2021-11-20 05:56:19,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196236705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:19,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:19,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:19,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673541076] [2021-11-20 05:56:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:19,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:19,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:19,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:19,806 INFO L87 Difference]: Start difference. First operand 19052 states and 21709 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) [2021-11-20 05:56:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:20,740 INFO L93 Difference]: Finished difference Result 39573 states and 45097 transitions. [2021-11-20 05:56:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:20,741 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 500 [2021-11-20 05:56:20,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:20,770 INFO L225 Difference]: With dead ends: 39573 [2021-11-20 05:56:20,771 INFO L226 Difference]: Without dead ends: 19047 [2021-11-20 05:56:20,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:20,785 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 196 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:20,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 360 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 05:56:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19047 states. [2021-11-20 05:56:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19047 to 18303. [2021-11-20 05:56:21,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18303 states, 18302 states have (on average 1.115725057370779) internal successors, (20420), 18302 states have internal predecessors, (20420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:21,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18303 states to 18303 states and 20420 transitions. [2021-11-20 05:56:21,249 INFO L78 Accepts]: Start accepts. Automaton has 18303 states and 20420 transitions. Word has length 500 [2021-11-20 05:56:21,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:21,250 INFO L470 AbstractCegarLoop]: Abstraction has 18303 states and 20420 transitions. [2021-11-20 05:56:21,250 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) [2021-11-20 05:56:21,250 INFO L276 IsEmpty]: Start isEmpty. Operand 18303 states and 20420 transitions. [2021-11-20 05:56:21,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2021-11-20 05:56:21,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:21,277 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-11-20 05:56:21,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 05:56:21,278 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:21,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:21,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1708266968, now seen corresponding path program 1 times [2021-11-20 05:56:21,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:21,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625119452] [2021-11-20 05:56:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:21,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:21,720 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 447 proven. 85 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-20 05:56:21,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:21,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625119452] [2021-11-20 05:56:21,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625119452] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:21,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505046962] [2021-11-20 05:56:21,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:21,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:21,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:21,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:21,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:56:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:21,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:56:21,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:56:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 532 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-20 05:56:22,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:56:22,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505046962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:22,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:56:22,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-20 05:56:22,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848804976] [2021-11-20 05:56:22,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:22,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:22,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:22,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:56:22,996 INFO L87 Difference]: Start difference. First operand 18303 states and 20420 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:23,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:23,819 INFO L93 Difference]: Finished difference Result 37162 states and 41451 transitions. [2021-11-20 05:56:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:23,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 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 507 [2021-11-20 05:56:23,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:23,850 INFO L225 Difference]: With dead ends: 37162 [2021-11-20 05:56:23,850 INFO L226 Difference]: Without dead ends: 19229 [2021-11-20 05:56:23,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:56:23,863 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 83 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:23,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 162 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:56:23,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19229 states. [2021-11-20 05:56:24,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19229 to 18855. [2021-11-20 05:56:24,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18855 states, 18854 states have (on average 1.1102683780630105) internal successors, (20933), 18854 states have internal predecessors, (20933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:24,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18855 states to 18855 states and 20933 transitions. [2021-11-20 05:56:24,204 INFO L78 Accepts]: Start accepts. Automaton has 18855 states and 20933 transitions. Word has length 507 [2021-11-20 05:56:24,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:24,205 INFO L470 AbstractCegarLoop]: Abstraction has 18855 states and 20933 transitions. [2021-11-20 05:56:24,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:24,205 INFO L276 IsEmpty]: Start isEmpty. Operand 18855 states and 20933 transitions. [2021-11-20 05:56:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2021-11-20 05:56:24,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:24,225 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-11-20 05:56:24,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:56:24,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 05:56:24,441 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:24,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:24,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1545968281, now seen corresponding path program 1 times [2021-11-20 05:56:24,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:24,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98595005] [2021-11-20 05:56:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:24,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:24,783 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 508 proven. 24 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-20 05:56:24,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:24,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98595005] [2021-11-20 05:56:24,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98595005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:24,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937686216] [2021-11-20 05:56:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:24,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:24,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:24,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:24,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:56:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:25,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:56:25,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:56:26,116 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 532 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-20 05:56:26,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:56:26,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937686216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:26,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:56:26,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-11-20 05:56:26,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33813216] [2021-11-20 05:56:26,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:26,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:26,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:26,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:56:26,120 INFO L87 Difference]: Start difference. First operand 18855 states and 20933 transitions. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 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) [2021-11-20 05:56:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:27,120 INFO L93 Difference]: Finished difference Result 39730 states and 44007 transitions. [2021-11-20 05:56:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:27,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 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 508 [2021-11-20 05:56:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:27,217 INFO L225 Difference]: With dead ends: 39730 [2021-11-20 05:56:27,217 INFO L226 Difference]: Without dead ends: 21245 [2021-11-20 05:56:27,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:56:27,226 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 278 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:27,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 160 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 05:56:27,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21245 states. [2021-11-20 05:56:27,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21245 to 18109. [2021-11-20 05:56:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18109 states, 18108 states have (on average 1.1061961563949636) internal successors, (20031), 18108 states have internal predecessors, (20031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18109 states to 18109 states and 20031 transitions. [2021-11-20 05:56:27,473 INFO L78 Accepts]: Start accepts. Automaton has 18109 states and 20031 transitions. Word has length 508 [2021-11-20 05:56:27,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:27,474 INFO L470 AbstractCegarLoop]: Abstraction has 18109 states and 20031 transitions. [2021-11-20 05:56:27,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 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) [2021-11-20 05:56:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 18109 states and 20031 transitions. [2021-11-20 05:56:27,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2021-11-20 05:56:27,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:27,492 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-11-20 05:56:27,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:56:27,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-20 05:56:27,710 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:27,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:27,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1134199501, now seen corresponding path program 1 times [2021-11-20 05:56:27,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:27,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510098809] [2021-11-20 05:56:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:27,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 572 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:56:28,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:28,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510098809] [2021-11-20 05:56:28,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510098809] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:28,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892446640] [2021-11-20 05:56:28,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:28,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:28,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:28,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:28,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:56:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:28,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:56:28,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:56:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 699 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2021-11-20 05:56:29,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:56:29,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892446640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:29,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:56:29,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2021-11-20 05:56:29,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715221700] [2021-11-20 05:56:29,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:29,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:29,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:29,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:29,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:56:29,338 INFO L87 Difference]: Start difference. First operand 18109 states and 20031 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:30,100 INFO L93 Difference]: Finished difference Result 37329 states and 41284 transitions. [2021-11-20 05:56:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:30,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 535 [2021-11-20 05:56:30,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:30,122 INFO L225 Difference]: With dead ends: 37329 [2021-11-20 05:56:30,122 INFO L226 Difference]: Without dead ends: 19590 [2021-11-20 05:56:30,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:56:30,134 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 91 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:30,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 342 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:56:30,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19590 states. [2021-11-20 05:56:30,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19590 to 18475. [2021-11-20 05:56:30,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18475 states, 18474 states have (on average 1.1047417992854822) internal successors, (20409), 18474 states have internal predecessors, (20409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18475 states to 18475 states and 20409 transitions. [2021-11-20 05:56:30,523 INFO L78 Accepts]: Start accepts. Automaton has 18475 states and 20409 transitions. Word has length 535 [2021-11-20 05:56:30,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:30,524 INFO L470 AbstractCegarLoop]: Abstraction has 18475 states and 20409 transitions. [2021-11-20 05:56:30,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 18475 states and 20409 transitions. [2021-11-20 05:56:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2021-11-20 05:56:30,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:30,543 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 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] [2021-11-20 05:56:30,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:56:30,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-20 05:56:30,769 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:30,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:30,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1764270116, now seen corresponding path program 1 times [2021-11-20 05:56:30,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:30,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398564141] [2021-11-20 05:56:30,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:30,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 532 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-20 05:56:31,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:31,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398564141] [2021-11-20 05:56:31,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398564141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:31,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:31,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:56:31,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167500722] [2021-11-20 05:56:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:31,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:31,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:56:31,008 INFO L87 Difference]: Start difference. First operand 18475 states and 20409 transitions. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:32,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:32,194 INFO L93 Difference]: Finished difference Result 41564 states and 45924 transitions. [2021-11-20 05:56:32,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:32,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 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 540 [2021-11-20 05:56:32,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:32,210 INFO L225 Difference]: With dead ends: 41564 [2021-11-20 05:56:32,210 INFO L226 Difference]: Without dead ends: 23459 [2021-11-20 05:56:32,220 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 [2021-11-20 05:56:32,220 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 311 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:32,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 341 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 05:56:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23459 states. [2021-11-20 05:56:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23459 to 18284. [2021-11-20 05:56:32,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18284 states, 18283 states have (on average 1.1028277634961439) internal successors, (20163), 18283 states have internal predecessors, (20163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:32,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18284 states to 18284 states and 20163 transitions. [2021-11-20 05:56:32,581 INFO L78 Accepts]: Start accepts. Automaton has 18284 states and 20163 transitions. Word has length 540 [2021-11-20 05:56:32,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:32,582 INFO L470 AbstractCegarLoop]: Abstraction has 18284 states and 20163 transitions. [2021-11-20 05:56:32,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:32,582 INFO L276 IsEmpty]: Start isEmpty. Operand 18284 states and 20163 transitions. [2021-11-20 05:56:32,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2021-11-20 05:56:32,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:32,604 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:32,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 05:56:32,605 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:32,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:32,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2068323999, now seen corresponding path program 1 times [2021-11-20 05:56:32,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:32,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896554791] [2021-11-20 05:56:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:32,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1195 backedges. 612 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2021-11-20 05:56:32,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:32,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896554791] [2021-11-20 05:56:32,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896554791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:32,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:32,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:56:32,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517300056] [2021-11-20 05:56:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:32,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:32,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:32,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:32,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:32,847 INFO L87 Difference]: Start difference. First operand 18284 states and 20163 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:33,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:33,254 INFO L93 Difference]: Finished difference Result 35823 states and 39522 transitions. [2021-11-20 05:56:33,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:33,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 0 states have call successors, (0), 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 631 [2021-11-20 05:56:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:33,271 INFO L225 Difference]: With dead ends: 35823 [2021-11-20 05:56:33,271 INFO L226 Difference]: Without dead ends: 17909 [2021-11-20 05:56:33,279 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 [2021-11-20 05:56:33,280 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 157 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:33,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 34 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:56:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17909 states. [2021-11-20 05:56:33,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17909 to 17906. [2021-11-20 05:56:33,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17906 states, 17905 states have (on average 1.1019268360793075) internal successors, (19730), 17905 states have internal predecessors, (19730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17906 states to 17906 states and 19730 transitions. [2021-11-20 05:56:33,559 INFO L78 Accepts]: Start accepts. Automaton has 17906 states and 19730 transitions. Word has length 631 [2021-11-20 05:56:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:33,559 INFO L470 AbstractCegarLoop]: Abstraction has 17906 states and 19730 transitions. [2021-11-20 05:56:33,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 2 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:33,559 INFO L276 IsEmpty]: Start isEmpty. Operand 17906 states and 19730 transitions. [2021-11-20 05:56:33,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2021-11-20 05:56:33,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:33,580 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, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:33,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 05:56:33,580 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:33,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1252408039, now seen corresponding path program 1 times [2021-11-20 05:56:33,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:33,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141313798] [2021-11-20 05:56:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:33,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2021-11-20 05:56:33,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:33,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141313798] [2021-11-20 05:56:33,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141313798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:33,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:33,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:33,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454967885] [2021-11-20 05:56:33,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:33,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:33,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:33,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:33,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:33,849 INFO L87 Difference]: Start difference. First operand 17906 states and 19730 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:34,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:34,714 INFO L93 Difference]: Finished difference Result 38022 states and 41945 transitions. [2021-11-20 05:56:34,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:34,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 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 651 [2021-11-20 05:56:34,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:34,734 INFO L225 Difference]: With dead ends: 38022 [2021-11-20 05:56:34,734 INFO L226 Difference]: Without dead ends: 20486 [2021-11-20 05:56:34,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:34,742 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 124 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:34,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 74 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:56:34,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20486 states. [2021-11-20 05:56:34,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20486 to 18274. [2021-11-20 05:56:34,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18274 states, 18273 states have (on average 1.0996552290264325) internal successors, (20094), 18273 states have internal predecessors, (20094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:34,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18274 states to 18274 states and 20094 transitions. [2021-11-20 05:56:34,969 INFO L78 Accepts]: Start accepts. Automaton has 18274 states and 20094 transitions. Word has length 651 [2021-11-20 05:56:34,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:34,970 INFO L470 AbstractCegarLoop]: Abstraction has 18274 states and 20094 transitions. [2021-11-20 05:56:34,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:34,970 INFO L276 IsEmpty]: Start isEmpty. Operand 18274 states and 20094 transitions. [2021-11-20 05:56:35,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2021-11-20 05:56:35,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:35,005 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, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:35,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 05:56:35,006 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:35,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:35,007 INFO L85 PathProgramCache]: Analyzing trace with hash -352651479, now seen corresponding path program 1 times [2021-11-20 05:56:35,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:35,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382305912] [2021-11-20 05:56:35,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:35,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:35,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2021-11-20 05:56:35,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:35,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382305912] [2021-11-20 05:56:35,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382305912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:35,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:35,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:35,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458847782] [2021-11-20 05:56:35,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:35,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:35,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:35,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:35,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:35,301 INFO L87 Difference]: Start difference. First operand 18274 states and 20094 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:36,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:36,097 INFO L93 Difference]: Finished difference Result 36728 states and 40390 transitions. [2021-11-20 05:56:36,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:36,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 652 [2021-11-20 05:56:36,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:36,110 INFO L225 Difference]: With dead ends: 36728 [2021-11-20 05:56:36,110 INFO L226 Difference]: Without dead ends: 18824 [2021-11-20 05:56:36,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:36,117 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 87 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:36,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 337 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 05:56:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18824 states. [2021-11-20 05:56:36,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18824 to 17166. [2021-11-20 05:56:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17166 states, 17165 states have (on average 1.0982813865423828) internal successors, (18852), 17165 states have internal predecessors, (18852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:36,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17166 states to 17166 states and 18852 transitions. [2021-11-20 05:56:36,273 INFO L78 Accepts]: Start accepts. Automaton has 17166 states and 18852 transitions. Word has length 652 [2021-11-20 05:56:36,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:36,273 INFO L470 AbstractCegarLoop]: Abstraction has 17166 states and 18852 transitions. [2021-11-20 05:56:36,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:36,274 INFO L276 IsEmpty]: Start isEmpty. Operand 17166 states and 18852 transitions. [2021-11-20 05:56:36,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2021-11-20 05:56:36,292 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:36,292 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:36,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 05:56:36,293 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:36,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1883102673, now seen corresponding path program 1 times [2021-11-20 05:56:36,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:36,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362284871] [2021-11-20 05:56:36,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:36,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 1223 proven. 61 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2021-11-20 05:56:36,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:36,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362284871] [2021-11-20 05:56:36,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362284871] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:36,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106223930] [2021-11-20 05:56:36,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:36,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:36,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:36,642 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:36,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:56:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:36,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:56:36,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:56:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 1284 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2021-11-20 05:56:37,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:56:37,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106223930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:37,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:56:37,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-20 05:56:37,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943159935] [2021-11-20 05:56:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:37,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:37,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:37,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:37,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:56:37,969 INFO L87 Difference]: Start difference. First operand 17166 states and 18852 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:38,614 INFO L93 Difference]: Finished difference Result 34891 states and 38315 transitions. [2021-11-20 05:56:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:38,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 708 [2021-11-20 05:56:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:38,627 INFO L225 Difference]: With dead ends: 34891 [2021-11-20 05:56:38,627 INFO L226 Difference]: Without dead ends: 18095 [2021-11-20 05:56:38,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 707 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:56:38,636 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 122 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:38,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 79 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 05:56:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18095 states. [2021-11-20 05:56:38,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18095 to 16982. [2021-11-20 05:56:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16982 states, 16981 states have (on average 1.0981685413108768) internal successors, (18648), 16981 states have internal predecessors, (18648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16982 states to 16982 states and 18648 transitions. [2021-11-20 05:56:38,790 INFO L78 Accepts]: Start accepts. Automaton has 16982 states and 18648 transitions. Word has length 708 [2021-11-20 05:56:38,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:38,791 INFO L470 AbstractCegarLoop]: Abstraction has 16982 states and 18648 transitions. [2021-11-20 05:56:38,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 16982 states and 18648 transitions. [2021-11-20 05:56:38,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2021-11-20 05:56:38,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:38,812 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:38,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:56:39,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:39,037 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:39,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:39,038 INFO L85 PathProgramCache]: Analyzing trace with hash 965344910, now seen corresponding path program 1 times [2021-11-20 05:56:39,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:39,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807790653] [2021-11-20 05:56:39,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:39,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1789 backedges. 1236 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-11-20 05:56:39,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:39,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807790653] [2021-11-20 05:56:39,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807790653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:39,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:39,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:39,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272130469] [2021-11-20 05:56:39,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:39,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:39,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:39,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:56:39,308 INFO L87 Difference]: Start difference. First operand 16982 states and 18648 transitions. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:40,274 INFO L93 Difference]: Finished difference Result 38207 states and 41942 transitions. [2021-11-20 05:56:40,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:40,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 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 709 [2021-11-20 05:56:40,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:40,291 INFO L225 Difference]: With dead ends: 38207 [2021-11-20 05:56:40,291 INFO L226 Difference]: Without dead ends: 21595 [2021-11-20 05:56:40,299 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 [2021-11-20 05:56:40,313 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 221 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:40,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 69 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 05:56:40,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21595 states. [2021-11-20 05:56:40,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21595 to 15510. [2021-11-20 05:56:40,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15510 states, 15509 states have (on average 1.0996195757302212) internal successors, (17054), 15509 states have internal predecessors, (17054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:40,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15510 states to 15510 states and 17054 transitions. [2021-11-20 05:56:40,518 INFO L78 Accepts]: Start accepts. Automaton has 15510 states and 17054 transitions. Word has length 709 [2021-11-20 05:56:40,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:40,519 INFO L470 AbstractCegarLoop]: Abstraction has 15510 states and 17054 transitions. [2021-11-20 05:56:40,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:40,519 INFO L276 IsEmpty]: Start isEmpty. Operand 15510 states and 17054 transitions. [2021-11-20 05:56:40,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2021-11-20 05:56:40,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:40,538 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:40,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 05:56:40,538 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:40,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:40,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2095403203, now seen corresponding path program 1 times [2021-11-20 05:56:40,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:40,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30249983] [2021-11-20 05:56:40,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:40,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2328 backedges. 1095 proven. 0 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2021-11-20 05:56:40,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:40,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30249983] [2021-11-20 05:56:40,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30249983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:40,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:40,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:40,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174338714] [2021-11-20 05:56:40,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:40,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:40,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:40,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:40,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:56:40,858 INFO L87 Difference]: Start difference. First operand 15510 states and 17054 transitions. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:41,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:41,908 INFO L93 Difference]: Finished difference Result 32130 states and 35360 transitions. [2021-11-20 05:56:41,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:41,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 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 794 [2021-11-20 05:56:41,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:41,920 INFO L225 Difference]: With dead ends: 32130 [2021-11-20 05:56:41,920 INFO L226 Difference]: Without dead ends: 16990 [2021-11-20 05:56:41,925 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 [2021-11-20 05:56:41,927 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 225 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:41,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 108 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 05:56:41,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16990 states. [2021-11-20 05:56:42,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16990 to 15698. [2021-11-20 05:56:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15698 states, 15697 states have (on average 1.0986812766770722) internal successors, (17246), 15697 states have internal predecessors, (17246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:42,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15698 states to 15698 states and 17246 transitions. [2021-11-20 05:56:42,063 INFO L78 Accepts]: Start accepts. Automaton has 15698 states and 17246 transitions. Word has length 794 [2021-11-20 05:56:42,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:42,063 INFO L470 AbstractCegarLoop]: Abstraction has 15698 states and 17246 transitions. [2021-11-20 05:56:42,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:42,064 INFO L276 IsEmpty]: Start isEmpty. Operand 15698 states and 17246 transitions. [2021-11-20 05:56:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2021-11-20 05:56:42,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:42,078 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:42,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 05:56:42,078 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:42,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:42,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1612885747, now seen corresponding path program 1 times [2021-11-20 05:56:42,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:42,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314439110] [2021-11-20 05:56:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:42,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2469 backedges. 1886 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2021-11-20 05:56:42,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:42,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314439110] [2021-11-20 05:56:42,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314439110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:42,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:42,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:56:42,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45869175] [2021-11-20 05:56:42,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:42,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:42,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:56:42,402 INFO L87 Difference]: Start difference. First operand 15698 states and 17246 transitions. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:43,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:43,529 INFO L93 Difference]: Finished difference Result 38405 states and 42177 transitions. [2021-11-20 05:56:43,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:43,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 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 860 [2021-11-20 05:56:43,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:43,547 INFO L225 Difference]: With dead ends: 38405 [2021-11-20 05:56:43,547 INFO L226 Difference]: Without dead ends: 23077 [2021-11-20 05:56:43,555 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 [2021-11-20 05:56:43,556 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 240 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:43,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 83 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 05:56:43,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23077 states. [2021-11-20 05:56:43,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23077 to 16071. [2021-11-20 05:56:43,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16071 states, 16070 states have (on average 1.0965774735532048) internal successors, (17622), 16070 states have internal predecessors, (17622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:43,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16071 states to 16071 states and 17622 transitions. [2021-11-20 05:56:43,801 INFO L78 Accepts]: Start accepts. Automaton has 16071 states and 17622 transitions. Word has length 860 [2021-11-20 05:56:43,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:43,802 INFO L470 AbstractCegarLoop]: Abstraction has 16071 states and 17622 transitions. [2021-11-20 05:56:43,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:43,802 INFO L276 IsEmpty]: Start isEmpty. Operand 16071 states and 17622 transitions. [2021-11-20 05:56:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1068 [2021-11-20 05:56:43,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:43,818 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:43,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 05:56:43,818 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:43,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:43,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1417283486, now seen corresponding path program 1 times [2021-11-20 05:56:43,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:43,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282154456] [2021-11-20 05:56:43,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:43,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:44,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3855 backedges. 2290 proven. 830 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2021-11-20 05:56:44,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:44,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282154456] [2021-11-20 05:56:44,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282154456] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:44,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430186755] [2021-11-20 05:56:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:44,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:44,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:44,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:44,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 05:56:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:44,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:56:44,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:56:46,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3855 backedges. 2335 proven. 0 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2021-11-20 05:56:46,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:56:46,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430186755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:46,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:56:46,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-11-20 05:56:46,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824976213] [2021-11-20 05:56:46,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:46,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:46,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:46,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:46,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:56:46,334 INFO L87 Difference]: Start difference. First operand 16071 states and 17622 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:46,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:46,902 INFO L93 Difference]: Finished difference Result 32336 states and 35486 transitions. [2021-11-20 05:56:46,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:46,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 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 1067 [2021-11-20 05:56:46,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:46,913 INFO L225 Difference]: With dead ends: 32336 [2021-11-20 05:56:46,913 INFO L226 Difference]: Without dead ends: 16635 [2021-11-20 05:56:46,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1074 GetRequests, 1068 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:56:46,920 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 104 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:46,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 331 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:56:46,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16635 states. [2021-11-20 05:56:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16635 to 16627. [2021-11-20 05:56:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16627 states, 16626 states have (on average 1.094731143991339) internal successors, (18201), 16626 states have internal predecessors, (18201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16627 states to 16627 states and 18201 transitions. [2021-11-20 05:56:47,069 INFO L78 Accepts]: Start accepts. Automaton has 16627 states and 18201 transitions. Word has length 1067 [2021-11-20 05:56:47,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:47,069 INFO L470 AbstractCegarLoop]: Abstraction has 16627 states and 18201 transitions. [2021-11-20 05:56:47,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:47,070 INFO L276 IsEmpty]: Start isEmpty. Operand 16627 states and 18201 transitions. [2021-11-20 05:56:47,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2021-11-20 05:56:47,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:47,087 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2021-11-20 05:56:47,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:56:47,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-20 05:56:47,288 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:47,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:47,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1678456145, now seen corresponding path program 1 times [2021-11-20 05:56:47,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:47,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800980954] [2021-11-20 05:56:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:47,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4049 backedges. 2161 proven. 0 refuted. 0 times theorem prover too weak. 1888 trivial. 0 not checked. [2021-11-20 05:56:47,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:47,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800980954] [2021-11-20 05:56:47,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800980954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:47,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:47,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:56:47,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859547634] [2021-11-20 05:56:47,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:47,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:47,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:47,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:47,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:56:47,720 INFO L87 Difference]: Start difference. First operand 16627 states and 18201 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 2 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) [2021-11-20 05:56:48,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:48,093 INFO L93 Difference]: Finished difference Result 32510 states and 35607 transitions. [2021-11-20 05:56:48,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:48,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 2 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 1132 [2021-11-20 05:56:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:48,104 INFO L225 Difference]: With dead ends: 32510 [2021-11-20 05:56:48,104 INFO L226 Difference]: Without dead ends: 16253 [2021-11-20 05:56:48,110 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 [2021-11-20 05:56:48,111 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 155 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:48,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 34 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:56:48,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16253 states. [2021-11-20 05:56:48,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16253 to 16253. [2021-11-20 05:56:48,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16253 states, 16252 states have (on average 1.094203790302732) internal successors, (17783), 16252 states have internal predecessors, (17783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16253 states to 16253 states and 17783 transitions. [2021-11-20 05:56:48,253 INFO L78 Accepts]: Start accepts. Automaton has 16253 states and 17783 transitions. Word has length 1132 [2021-11-20 05:56:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:48,254 INFO L470 AbstractCegarLoop]: Abstraction has 16253 states and 17783 transitions. [2021-11-20 05:56:48,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 2 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) [2021-11-20 05:56:48,255 INFO L276 IsEmpty]: Start isEmpty. Operand 16253 states and 17783 transitions. [2021-11-20 05:56:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1157 [2021-11-20 05:56:48,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:48,276 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 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] [2021-11-20 05:56:48,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 05:56:48,277 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:48,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash 750491527, now seen corresponding path program 1 times [2021-11-20 05:56:48,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:48,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364046779] [2021-11-20 05:56:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:48,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4066 backedges. 1501 proven. 0 refuted. 0 times theorem prover too weak. 2565 trivial. 0 not checked. [2021-11-20 05:56:48,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:48,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364046779] [2021-11-20 05:56:48,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364046779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:48,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:56:48,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:56:48,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332850050] [2021-11-20 05:56:48,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:48,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:56:48,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:48,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:56:48,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:56:48,701 INFO L87 Difference]: Start difference. First operand 16253 states and 17783 transitions. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:49,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:49,831 INFO L93 Difference]: Finished difference Result 32689 states and 35774 transitions. [2021-11-20 05:56:49,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:56:49,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 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 1156 [2021-11-20 05:56:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:49,843 INFO L225 Difference]: With dead ends: 32689 [2021-11-20 05:56:49,843 INFO L226 Difference]: Without dead ends: 16622 [2021-11-20 05:56:49,849 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 [2021-11-20 05:56:49,850 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 205 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:49,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 85 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 05:56:49,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16622 states. [2021-11-20 05:56:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16622 to 16621. [2021-11-20 05:56:50,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16621 states, 16620 states have (on average 1.0927797833935018) internal successors, (18162), 16620 states have internal predecessors, (18162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16621 states to 16621 states and 18162 transitions. [2021-11-20 05:56:50,045 INFO L78 Accepts]: Start accepts. Automaton has 16621 states and 18162 transitions. Word has length 1156 [2021-11-20 05:56:50,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:50,046 INFO L470 AbstractCegarLoop]: Abstraction has 16621 states and 18162 transitions. [2021-11-20 05:56:50,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:50,046 INFO L276 IsEmpty]: Start isEmpty. Operand 16621 states and 18162 transitions. [2021-11-20 05:56:50,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1195 [2021-11-20 05:56:50,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:50,074 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:50,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 05:56:50,074 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:50,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:50,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1701280617, now seen corresponding path program 1 times [2021-11-20 05:56:50,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:50,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906830341] [2021-11-20 05:56:50,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:50,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4127 backedges. 2240 proven. 73 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked. [2021-11-20 05:56:50,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:50,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906830341] [2021-11-20 05:56:50,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906830341] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:50,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869429344] [2021-11-20 05:56:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:50,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:50,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:50,605 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:50,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 05:56:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:50,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:56:50,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:56:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4127 backedges. 2598 proven. 0 refuted. 0 times theorem prover too weak. 1529 trivial. 0 not checked. [2021-11-20 05:56:52,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:56:52,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869429344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:52,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:56:52,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-20 05:56:52,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741240676] [2021-11-20 05:56:52,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:52,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:52,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:52,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:52,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:56:52,876 INFO L87 Difference]: Start difference. First operand 16621 states and 18162 transitions. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:53,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:53,932 INFO L93 Difference]: Finished difference Result 37667 states and 41173 transitions. [2021-11-20 05:56:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:53,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 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 1194 [2021-11-20 05:56:53,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:53,947 INFO L225 Difference]: With dead ends: 37667 [2021-11-20 05:56:53,947 INFO L226 Difference]: Without dead ends: 21416 [2021-11-20 05:56:53,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1194 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:56:53,955 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 77 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:53,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 319 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 05:56:53,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21416 states. [2021-11-20 05:56:54,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21416 to 16813. [2021-11-20 05:56:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16813 states, 16812 states have (on average 1.0874970259338568) internal successors, (18283), 16812 states have internal predecessors, (18283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16813 states to 16813 states and 18283 transitions. [2021-11-20 05:56:54,181 INFO L78 Accepts]: Start accepts. Automaton has 16813 states and 18283 transitions. Word has length 1194 [2021-11-20 05:56:54,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:54,182 INFO L470 AbstractCegarLoop]: Abstraction has 16813 states and 18283 transitions. [2021-11-20 05:56:54,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:54,182 INFO L276 IsEmpty]: Start isEmpty. Operand 16813 states and 18283 transitions. [2021-11-20 05:56:54,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1356 [2021-11-20 05:56:54,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:54,212 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:54,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:56:54,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-20 05:56:54,412 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:54,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:54,413 INFO L85 PathProgramCache]: Analyzing trace with hash 164681189, now seen corresponding path program 1 times [2021-11-20 05:56:54,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:54,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401927111] [2021-11-20 05:56:54,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:54,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:55,118 INFO L134 CoverageAnalysis]: Checked inductivity of 6001 backedges. 3683 proven. 811 refuted. 0 times theorem prover too weak. 1507 trivial. 0 not checked. [2021-11-20 05:56:55,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:55,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401927111] [2021-11-20 05:56:55,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401927111] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:55,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607408038] [2021-11-20 05:56:55,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:55,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:55,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:55,121 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:55,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 05:56:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:55,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:56:55,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:56:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6001 backedges. 3704 proven. 0 refuted. 0 times theorem prover too weak. 2297 trivial. 0 not checked. [2021-11-20 05:56:57,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:56:57,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607408038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:56:57,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:56:57,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-20 05:56:57,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112740694] [2021-11-20 05:56:57,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:56:57,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:56:57,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:56:57,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:56:57,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:56:57,641 INFO L87 Difference]: Start difference. First operand 16813 states and 18283 transitions. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:58,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:56:58,222 INFO L93 Difference]: Finished difference Result 34734 states and 37759 transitions. [2021-11-20 05:56:58,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:56:58,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 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 1355 [2021-11-20 05:56:58,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:56:58,234 INFO L225 Difference]: With dead ends: 34734 [2021-11-20 05:56:58,235 INFO L226 Difference]: Without dead ends: 17923 [2021-11-20 05:56:58,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1362 GetRequests, 1357 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:56:58,242 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 98 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 05:56:58,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 344 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 05:56:58,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17923 states. [2021-11-20 05:56:58,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17923 to 17921. [2021-11-20 05:56:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17921 states, 17920 states have (on average 1.0834263392857142) internal successors, (19415), 17920 states have internal predecessors, (19415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17921 states to 17921 states and 19415 transitions. [2021-11-20 05:56:58,416 INFO L78 Accepts]: Start accepts. Automaton has 17921 states and 19415 transitions. Word has length 1355 [2021-11-20 05:56:58,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:56:58,417 INFO L470 AbstractCegarLoop]: Abstraction has 17921 states and 19415 transitions. [2021-11-20 05:56:58,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:56:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 17921 states and 19415 transitions. [2021-11-20 05:56:58,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1442 [2021-11-20 05:56:58,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:56:58,448 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:56:58,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:56:58,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:58,661 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:56:58,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:56:58,662 INFO L85 PathProgramCache]: Analyzing trace with hash -405637536, now seen corresponding path program 1 times [2021-11-20 05:56:58,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:56:58,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728530681] [2021-11-20 05:56:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:58,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:56:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6354 backedges. 3845 proven. 206 refuted. 0 times theorem prover too weak. 2303 trivial. 0 not checked. [2021-11-20 05:56:59,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:56:59,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728530681] [2021-11-20 05:56:59,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728530681] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:56:59,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236062104] [2021-11-20 05:56:59,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:56:59,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:56:59,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:56:59,389 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:56:59,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 05:56:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:56:59,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-20 05:56:59,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:57:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6354 backedges. 4220 proven. 282 refuted. 0 times theorem prover too weak. 1852 trivial. 0 not checked. [2021-11-20 05:57:05,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:57:14,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6354 backedges. 3750 proven. 323 refuted. 0 times theorem prover too weak. 2281 trivial. 0 not checked. [2021-11-20 05:57:14,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236062104] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:57:14,678 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:57:14,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 6] total 12 [2021-11-20 05:57:14,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285260655] [2021-11-20 05:57:14,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:57:14,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:57:14,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:57:14,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:57:14,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:57:14,684 INFO L87 Difference]: Start difference. First operand 17921 states and 19415 transitions. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 12 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:57:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:57:20,084 INFO L93 Difference]: Finished difference Result 27828 states and 30054 transitions. [2021-11-20 05:57:20,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 05:57:20,084 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 12 states have internal predecessors, (810), 0 states have call successors, (0), 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 1441 [2021-11-20 05:57:20,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:57:20,086 INFO L225 Difference]: With dead ends: 27828 [2021-11-20 05:57:20,086 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 05:57:20,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2904 GetRequests, 2873 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2021-11-20 05:57:20,095 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 1774 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 8308 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 8761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 8308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-20 05:57:20,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1774 Valid, 185 Invalid, 8761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 8308 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-20 05:57:20,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 05:57:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 05:57:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:57:20,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 05:57:20,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1441 [2021-11-20 05:57:20,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:57:20,096 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:57:20,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 12 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:57:20,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 05:57:20,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 05:57:20,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 05:57:20,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:57:20,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:57:20,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:00:58,505 WARN L227 SmtUtils]: Spent 3.64m on a formula simplification. DAG size of input: 596 DAG size of output: 589 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-20 06:04:42,674 WARN L227 SmtUtils]: Spent 3.74m on a formula simplification. DAG size of input: 595 DAG size of output: 589 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-20 06:04:50,123 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-11-20 06:04:50,123 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,123 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-11-20 06:04:50,123 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,123 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,123 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,123 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,123 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,124 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,125 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,126 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,126 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-20 06:04:50,126 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-11-20 06:04:50,126 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-11-20 06:04:50,126 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,126 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,126 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,126 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse25 (+ ~a23~0 43))) (let ((.cse9 (<= .cse25 0)) (.cse20 (<= (+ 28470 ~a29~0) 0)) (.cse2 (<= ~a25~0 10)) (.cse21 (<= ~a25~0 9)) (.cse23 (<= 261 ~a29~0)) (.cse18 (<= ~a29~0 245)) (.cse8 (<= 130 ~a29~0)) (.cse19 (<= 13 ~a25~0)) (.cse10 (= ~a25~0 12)) (.cse24 (<= ~a29~0 140)) (.cse6 (<= ~a23~0 138)) (.cse4 (= ~a4~0 1))) (let ((.cse7 (<= 0 (+ 41 ~a23~0))) (.cse0 (<= ~a23~0 600000)) (.cse17 (< 0 .cse25)) (.cse16 (or (and .cse2 .cse6 .cse4) (and .cse9 .cse20 .cse21) (and .cse24 .cse2 .cse4 (<= ~a23~0 312) .cse21) (and .cse23 (<= (+ ~a23~0 599772) 0) .cse4 .cse19) (and .cse18 .cse6 .cse4 .cse8 .cse19) (and .cse10 .cse24 .cse6 .cse4))) (.cse1 (<= 10 ~a25~0)) (.cse14 (<= ~a4~0 0)) (.cse15 (< 140 ~a29~0)) (.cse11 (<= ~a29~0 274)) (.cse12 (<= ~a8~0 15)) (.cse3 (= ~a3~0 1)) (.cse13 (not .cse4)) (.cse5 (= ~a8~0 15)) (.cse22 (<= 247 ~a29~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse4 .cse8) (and .cse9 (<= (+ ~a23~0 55) 0) .cse10 .cse11 .cse12 .cse3 .cse13 .cse5 .cse14 .cse8) (and .cse15 (<= ~a29~0 234) .cse2 (= ~a25~0 9) .cse3 .cse4 .cse5) (and .cse10 (<= ~a23~0 306) .cse3 .cse4 .cse5) (and .cse16 .cse3 .cse5) (and .cse0 .cse15 .cse3 .cse7 .cse4 .cse5) (and .cse17 .cse18 .cse6 .cse4 .cse8) (and .cse0 .cse3 .cse4 .cse5 .cse19) (and .cse10 .cse17 .cse20 .cse6 .cse4) (and .cse17 .cse2 .cse6 .cse4) (and .cse16 .cse4 .cse21 .cse5) (and (or (and (<= (+ 284336 ~a23~0) 0) .cse11 .cse5 .cse22 .cse19) (and .cse9 .cse23 .cse21 .cse5)) .cse3) (and .cse9 .cse1 .cse24 .cse3 .cse13 .cse5) (and .cse3 .cse5 (or (and .cse10 .cse11 .cse22 .cse14) (and (<= ~a29~0 275) .cse10 .cse23 .cse14))) (and (not (= |ULTIMATE.start_calculate_output_~input#1| 5)) .cse15 .cse18 .cse3 .cse4 .cse5 (= ~a25~0 10)) (and .cse9 .cse10 .cse11 .cse12 .cse3 .cse13 .cse5 .cse22 .cse8))))) [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-11-20 06:04:50,127 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-11-20 06:04:50,128 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,129 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-20 06:04:50,130 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-11-20 06:04:50,130 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-11-20 06:04:50,130 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,130 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse25 (+ ~a23~0 43))) (let ((.cse9 (<= .cse25 0)) (.cse20 (<= (+ 28470 ~a29~0) 0)) (.cse2 (<= ~a25~0 10)) (.cse21 (<= ~a25~0 9)) (.cse23 (<= 261 ~a29~0)) (.cse18 (<= ~a29~0 245)) (.cse8 (<= 130 ~a29~0)) (.cse19 (<= 13 ~a25~0)) (.cse10 (= ~a25~0 12)) (.cse24 (<= ~a29~0 140)) (.cse6 (<= ~a23~0 138)) (.cse4 (= ~a4~0 1))) (let ((.cse7 (<= 0 (+ 41 ~a23~0))) (.cse0 (<= ~a23~0 600000)) (.cse17 (< 0 .cse25)) (.cse16 (or (and .cse2 .cse6 .cse4) (and .cse9 .cse20 .cse21) (and .cse24 .cse2 .cse4 (<= ~a23~0 312) .cse21) (and .cse23 (<= (+ ~a23~0 599772) 0) .cse4 .cse19) (and .cse18 .cse6 .cse4 .cse8 .cse19) (and .cse10 .cse24 .cse6 .cse4))) (.cse1 (<= 10 ~a25~0)) (.cse14 (<= ~a4~0 0)) (.cse15 (< 140 ~a29~0)) (.cse11 (<= ~a29~0 274)) (.cse12 (<= ~a8~0 15)) (.cse3 (= ~a3~0 1)) (.cse13 (not .cse4)) (.cse5 (= ~a8~0 15)) (.cse22 (<= 247 ~a29~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse4 .cse8) (and .cse9 (<= (+ ~a23~0 55) 0) .cse10 .cse11 .cse12 .cse3 .cse13 .cse5 .cse14 .cse8) (and .cse15 (<= ~a29~0 234) .cse2 (= ~a25~0 9) .cse3 .cse4 .cse5) (and .cse10 (<= ~a23~0 306) .cse3 .cse4 .cse5) (and .cse16 .cse3 .cse5) (and .cse0 .cse15 .cse3 .cse7 .cse4 .cse5) (and .cse17 .cse18 .cse6 .cse4 .cse8) (and .cse0 .cse3 .cse4 .cse5 .cse19) (and .cse10 .cse17 .cse20 .cse6 .cse4) (and .cse17 .cse2 .cse6 .cse4) (and .cse16 .cse4 .cse21 .cse5) (and (or (and (<= (+ 284336 ~a23~0) 0) .cse11 .cse5 .cse22 .cse19) (and .cse9 .cse23 .cse21 .cse5)) .cse3) (and .cse9 .cse1 .cse24 .cse3 .cse13 .cse5) (and .cse3 .cse5 (or (and .cse10 .cse11 .cse22 .cse14) (and (<= ~a29~0 275) .cse10 .cse23 .cse14))) (and (not (= |ULTIMATE.start_calculate_output_~input#1| 5)) .cse15 .cse18 .cse3 .cse4 .cse5 (= ~a25~0 10)) (and .cse9 .cse10 .cse11 .cse12 .cse3 .cse13 .cse5 .cse22 .cse8))))) [2021-11-20 06:04:50,130 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,130 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,130 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-11-20 06:04:50,131 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-11-20 06:04:50,132 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-11-20 06:04:50,132 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-11-20 06:04:50,132 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,132 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,132 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,132 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,133 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,133 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,133 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,133 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,133 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,133 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,134 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:04:50,134 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-20 06:04:50,134 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-11-20 06:04:50,134 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-11-20 06:04:50,134 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-11-20 06:04:50,135 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,135 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,135 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,135 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,135 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,135 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-11-20 06:04:50,136 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-11-20 06:04:50,136 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-11-20 06:04:50,136 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,136 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,136 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,136 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,137 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-11-20 06:04:50,137 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-11-20 06:04:50,137 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,137 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,137 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,137 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,138 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,138 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,138 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-11-20 06:04:50,138 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-11-20 06:04:50,138 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,138 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,139 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-20 06:04:50,139 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-11-20 06:04:50,139 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-11-20 06:04:50,139 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:04:50,139 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 199) no Hoare annotation was computed. [2021-11-20 06:04:50,140 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,140 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,140 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,140 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,140 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,140 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,141 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,141 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-20 06:04:50,141 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-11-20 06:04:50,141 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-11-20 06:04:50,141 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-11-20 06:04:50,141 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-11-20 06:04:50,142 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-11-20 06:04:50,142 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-11-20 06:04:50,142 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,142 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,142 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-11-20 06:04:50,142 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-11-20 06:04:50,143 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,143 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,143 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,143 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,143 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,143 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-11-20 06:04:50,144 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-11-20 06:04:50,144 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-11-20 06:04:50,144 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,144 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,144 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,144 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,145 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,145 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,145 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-11-20 06:04:50,145 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-11-20 06:04:50,145 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-20 06:04:50,145 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,146 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,146 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,146 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,146 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,146 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,146 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,147 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,147 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-11-20 06:04:50,147 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-11-20 06:04:50,147 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-11-20 06:04:50,147 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,147 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,148 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,148 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,148 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,148 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,148 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,149 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,149 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,149 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,149 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,149 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-11-20 06:04:50,150 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-11-20 06:04:50,150 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-20 06:04:50,150 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-20 06:04:50,150 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-11-20 06:04:50,150 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,150 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,151 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,151 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,151 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,151 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,151 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,151 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-11-20 06:04:50,152 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-11-20 06:04:50,152 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-11-20 06:04:50,152 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,152 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,152 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,152 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-11-20 06:04:50,153 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-11-20 06:04:50,153 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,153 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,153 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,153 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,154 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,154 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-11-20 06:04:50,154 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-11-20 06:04:50,154 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,154 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,154 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-11-20 06:04:50,155 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-11-20 06:04:50,155 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,155 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:04:50,155 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,155 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,156 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,156 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,156 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,156 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-11-20 06:04:50,156 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-11-20 06:04:50,156 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-11-20 06:04:50,157 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-11-20 06:04:50,157 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,157 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,157 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,157 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,157 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,158 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,158 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,158 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,158 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-11-20 06:04:50,158 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-11-20 06:04:50,158 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-11-20 06:04:50,159 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-11-20 06:04:50,159 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-11-20 06:04:50,159 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-11-20 06:04:50,159 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,159 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,160 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,160 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,160 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,160 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,160 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,161 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-20 06:04:50,161 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-11-20 06:04:50,161 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:04:50,161 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,161 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,161 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,162 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,162 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,162 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,162 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-11-20 06:04:50,162 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-11-20 06:04:50,162 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,163 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,163 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,163 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,163 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,163 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,163 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,164 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-11-20 06:04:50,164 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-11-20 06:04:50,164 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,164 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,164 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-20 06:04:50,164 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-11-20 06:04:50,165 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-11-20 06:04:50,165 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-11-20 06:04:50,169 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, 1, 1, 1, 1, 1] [2021-11-20 06:04:50,171 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:04:50,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:04:50 BoogieIcfgContainer [2021-11-20 06:04:50,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:04:50,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:04:50,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:04:50,219 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:04:50,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:56:00" (3/4) ... [2021-11-20 06:04:50,223 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:04:50,255 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:04:50,258 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:04:50,260 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:04:50,263 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:04:50,439 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:04:50,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:04:50,441 INFO L158 Benchmark]: Toolchain (without parser) took 533107.82ms. Allocated memory was 109.1MB in the beginning and 3.4GB in the end (delta: 3.3GB). Free memory was 74.7MB in the beginning and 2.9GB in the end (delta: -2.9GB). Peak memory consumption was 477.7MB. Max. memory is 16.1GB. [2021-11-20 06:04:50,441 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:04:50,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.35ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 74.6MB in the beginning and 99.0MB in the end (delta: -24.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2021-11-20 06:04:50,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.97ms. Allocated memory is still 144.7MB. Free memory was 98.4MB in the beginning and 81.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 06:04:50,446 INFO L158 Benchmark]: Boogie Preprocessor took 124.48ms. Allocated memory is still 144.7MB. Free memory was 81.6MB in the beginning and 72.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:04:50,451 INFO L158 Benchmark]: RCFGBuilder took 1680.68ms. Allocated memory was 144.7MB in the beginning and 249.6MB in the end (delta: 104.9MB). Free memory was 72.2MB in the beginning and 201.2MB in the end (delta: -129.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-11-20 06:04:50,452 INFO L158 Benchmark]: TraceAbstraction took 530102.72ms. Allocated memory was 249.6MB in the beginning and 3.4GB in the end (delta: 3.2GB). Free memory was 201.2MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2021-11-20 06:04:50,453 INFO L158 Benchmark]: Witness Printer took 221.38ms. Allocated memory is still 3.4GB. Free memory was 3.0GB in the beginning and 2.9GB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-20 06:04:50,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.35ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 74.6MB in the beginning and 99.0MB in the end (delta: -24.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.97ms. Allocated memory is still 144.7MB. Free memory was 98.4MB in the beginning and 81.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.48ms. Allocated memory is still 144.7MB. Free memory was 81.6MB in the beginning and 72.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1680.68ms. Allocated memory was 144.7MB in the beginning and 249.6MB in the end (delta: 104.9MB). Free memory was 72.2MB in the beginning and 201.2MB in the end (delta: -129.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 530102.72ms. Allocated memory was 249.6MB in the beginning and 3.4GB in the end (delta: 3.2GB). Free memory was 201.2MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 221.38ms. Allocated memory is still 3.4GB. Free memory was 3.0GB in the beginning and 2.9GB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. 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: 199]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 530.0s, OverallIterations: 31, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 33.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 449.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6672 SdHoareTripleChecker+Valid, 29.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6672 mSDsluCounter, 6058 SdHoareTripleChecker+Invalid, 24.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 833 mSDsCounter, 3435 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28536 IncrementalHoareTripleChecker+Invalid, 31971 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3435 mSolverCounterUnsat, 5225 mSDtfsCounter, 28536 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9292 GetRequests, 9191 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19052occurred in iteration=13, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.9s AutomataMinimizationTime, 31 MinimizatonAttempts, 37901 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 216 NumberOfFragments, 1069 HoareAnnotationTreeSize, 3 FomulaSimplifications, 509904 FormulaSimplificationTreeSizeReduction, 442.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 3385944 FormulaSimplificationTreeSizeReductionInter, 7.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 32.8s InterpolantComputationTime, 26343 NumberOfCodeBlocks, 26343 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 27743 ConstructedInterpolants, 0 QuantifiedInterpolants, 89334 SizeOfPredicates, 15 NumberOfNonLiveVariables, 10006 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 41 InterpolantComputations, 30 PerfectInterpolantSequences, 76590/79798 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: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a23 <= 600000 && 10 <= a25) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) || (((a23 <= 138 && 0 <= 41 + a23) && a4 == 1) && 130 <= a29)) || (((((((((a23 + 43 <= 0 && a23 + 55 <= 0) && a25 == 12) && a29 <= 274) && a8 <= 15) && a3 == 1) && !(a4 == 1)) && a8 == 15) && a4 <= 0) && 130 <= a29)) || ((((((140 < a29 && a29 <= 234) && a25 <= 10) && a25 == 9) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 12 && a23 <= 306) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((((a25 <= 10 && a23 <= 138) && a4 == 1) || ((a23 + 43 <= 0 && 28470 + a29 <= 0) && a25 <= 9)) || ((((a29 <= 140 && a25 <= 10) && a4 == 1) && a23 <= 312) && a25 <= 9)) || (((261 <= a29 && a23 + 599772 <= 0) && a4 == 1) && 13 <= a25)) || ((((a29 <= 245 && a23 <= 138) && a4 == 1) && 130 <= a29) && 13 <= a25)) || (((a25 == 12 && a29 <= 140) && a23 <= 138) && a4 == 1)) && a3 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a3 == 1) && 0 <= 41 + a23) && a4 == 1) && a8 == 15)) || ((((0 < a23 + 43 && a29 <= 245) && a23 <= 138) && a4 == 1) && 130 <= a29)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && 13 <= a25)) || ((((a25 == 12 && 0 < a23 + 43) && 28470 + a29 <= 0) && a23 <= 138) && a4 == 1)) || (((0 < a23 + 43 && a25 <= 10) && a23 <= 138) && a4 == 1)) || ((((((((((a25 <= 10 && a23 <= 138) && a4 == 1) || ((a23 + 43 <= 0 && 28470 + a29 <= 0) && a25 <= 9)) || ((((a29 <= 140 && a25 <= 10) && a4 == 1) && a23 <= 312) && a25 <= 9)) || (((261 <= a29 && a23 + 599772 <= 0) && a4 == 1) && 13 <= a25)) || ((((a29 <= 245 && a23 <= 138) && a4 == 1) && 130 <= a29) && 13 <= a25)) || (((a25 == 12 && a29 <= 140) && a23 <= 138) && a4 == 1)) && a4 == 1) && a25 <= 9) && a8 == 15)) || ((((((284336 + a23 <= 0 && a29 <= 274) && a8 == 15) && 247 <= a29) && 13 <= a25) || (((a23 + 43 <= 0 && 261 <= a29) && a25 <= 9) && a8 == 15)) && a3 == 1)) || (((((a23 + 43 <= 0 && 10 <= a25) && a29 <= 140) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || ((a3 == 1 && a8 == 15) && ((((a25 == 12 && a29 <= 274) && 247 <= a29) && a4 <= 0) || (((a29 <= 275 && a25 == 12) && 261 <= a29) && a4 <= 0)))) || ((((((!(input == 5) && 140 < a29) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10)) || ((((((((a23 + 43 <= 0 && a25 == 12) && a29 <= 274) && a8 <= 15) && a3 == 1) && !(a4 == 1)) && a8 == 15) && 247 <= a29) && 130 <= a29) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a23 <= 600000 && 10 <= a25) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) || (((a23 <= 138 && 0 <= 41 + a23) && a4 == 1) && 130 <= a29)) || (((((((((a23 + 43 <= 0 && a23 + 55 <= 0) && a25 == 12) && a29 <= 274) && a8 <= 15) && a3 == 1) && !(a4 == 1)) && a8 == 15) && a4 <= 0) && 130 <= a29)) || ((((((140 < a29 && a29 <= 234) && a25 <= 10) && a25 == 9) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 12 && a23 <= 306) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((((a25 <= 10 && a23 <= 138) && a4 == 1) || ((a23 + 43 <= 0 && 28470 + a29 <= 0) && a25 <= 9)) || ((((a29 <= 140 && a25 <= 10) && a4 == 1) && a23 <= 312) && a25 <= 9)) || (((261 <= a29 && a23 + 599772 <= 0) && a4 == 1) && 13 <= a25)) || ((((a29 <= 245 && a23 <= 138) && a4 == 1) && 130 <= a29) && 13 <= a25)) || (((a25 == 12 && a29 <= 140) && a23 <= 138) && a4 == 1)) && a3 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a3 == 1) && 0 <= 41 + a23) && a4 == 1) && a8 == 15)) || ((((0 < a23 + 43 && a29 <= 245) && a23 <= 138) && a4 == 1) && 130 <= a29)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && 13 <= a25)) || ((((a25 == 12 && 0 < a23 + 43) && 28470 + a29 <= 0) && a23 <= 138) && a4 == 1)) || (((0 < a23 + 43 && a25 <= 10) && a23 <= 138) && a4 == 1)) || ((((((((((a25 <= 10 && a23 <= 138) && a4 == 1) || ((a23 + 43 <= 0 && 28470 + a29 <= 0) && a25 <= 9)) || ((((a29 <= 140 && a25 <= 10) && a4 == 1) && a23 <= 312) && a25 <= 9)) || (((261 <= a29 && a23 + 599772 <= 0) && a4 == 1) && 13 <= a25)) || ((((a29 <= 245 && a23 <= 138) && a4 == 1) && 130 <= a29) && 13 <= a25)) || (((a25 == 12 && a29 <= 140) && a23 <= 138) && a4 == 1)) && a4 == 1) && a25 <= 9) && a8 == 15)) || ((((((284336 + a23 <= 0 && a29 <= 274) && a8 == 15) && 247 <= a29) && 13 <= a25) || (((a23 + 43 <= 0 && 261 <= a29) && a25 <= 9) && a8 == 15)) && a3 == 1)) || (((((a23 + 43 <= 0 && 10 <= a25) && a29 <= 140) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || ((a3 == 1 && a8 == 15) && ((((a25 == 12 && a29 <= 274) && 247 <= a29) && a4 <= 0) || (((a29 <= 275 && a25 == 12) && 261 <= a29) && a4 <= 0)))) || ((((((!(input == 5) && 140 < a29) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10)) || ((((((((a23 + 43 <= 0 && a25 == 12) && a29 <= 274) && a8 <= 15) && a3 == 1) && !(a4 == 1)) && a8 == 15) && 247 <= a29) && 130 <= a29) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 06:04:50,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601c9dc5-ed29-4184-9ccc-91d2ca348193/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE