./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg --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 db3674d4e110d61289adcfc52216f8004ef1ec49416f84e6bf350103cb2e8879 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:16:25,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:16:25,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:16:25,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:16:25,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:16:25,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:16:25,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:16:25,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:16:25,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:16:25,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:16:25,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:16:25,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:16:25,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:16:25,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:16:25,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:16:25,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:16:25,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:16:25,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:16:25,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:16:25,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:16:25,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:16:25,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:16:25,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:16:25,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:16:25,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:16:25,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:16:25,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:16:25,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:16:25,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:16:25,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:16:25,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:16:25,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:16:25,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:16:25,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:16:25,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:16:25,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:16:25,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:16:25,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:16:25,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:16:25,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:16:25,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:16:25,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:16:25,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:16:25,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:16:25,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:16:25,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:16:25,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:16:25,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:16:25,824 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:16:25,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:16:25,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:16:25,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:16:25,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:16:25,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:16:25,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:16:25,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:16:25,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:16:25,828 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:16:25,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:16:25,829 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:16:25,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:16:25,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:16:25,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:16:25,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:16:25,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:16:25,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:16:25,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:16:25,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:16:25,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:16:25,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:16:25,832 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:16:25,835 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:16:25,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:16:25,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:16:25,836 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_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db3674d4e110d61289adcfc52216f8004ef1ec49416f84e6bf350103cb2e8879 [2021-10-28 09:16:26,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:16:26,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:16:26,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:16:26,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:16:26,268 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:16:26,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/eca-rers2012/Problem02_label23.c [2021-10-28 09:16:26,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/data/776016b5c/24c9d3e90d804aa59e5c572c3368d760/FLAG283cea43b [2021-10-28 09:16:26,949 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:16:26,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/sv-benchmarks/c/eca-rers2012/Problem02_label23.c [2021-10-28 09:16:26,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/data/776016b5c/24c9d3e90d804aa59e5c572c3368d760/FLAG283cea43b [2021-10-28 09:16:27,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/data/776016b5c/24c9d3e90d804aa59e5c572c3368d760 [2021-10-28 09:16:27,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:16:27,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:16:27,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:16:27,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:16:27,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:16:27,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:27,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7000d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27, skipping insertion in model container [2021-10-28 09:16:27,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:27,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:16:27,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:16:27,762 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/sv-benchmarks/c/eca-rers2012/Problem02_label23.c[20538,20551] [2021-10-28 09:16:27,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:16:27,796 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:16:27,924 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/sv-benchmarks/c/eca-rers2012/Problem02_label23.c[20538,20551] [2021-10-28 09:16:27,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:16:27,970 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:16:27,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27 WrapperNode [2021-10-28 09:16:27,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:16:27,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:16:27,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:16:27,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:16:27,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:16:28,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:16:28,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:16:28,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:16:28,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:16:28,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:16:28,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:16:28,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:16:28,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (1/1) ... [2021-10-28 09:16:28,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:16:28,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:16:28,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:16:28,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:16:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:16:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:16:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:16:28,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:16:29,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:16:29,589 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 09:16:29,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:16:29 BoogieIcfgContainer [2021-10-28 09:16:29,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:16:29,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:16:29,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:16:29,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:16:29,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:16:27" (1/3) ... [2021-10-28 09:16:29,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b7ed0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:16:29, skipping insertion in model container [2021-10-28 09:16:29,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:27" (2/3) ... [2021-10-28 09:16:29,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b7ed0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:16:29, skipping insertion in model container [2021-10-28 09:16:29,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:16:29" (3/3) ... [2021-10-28 09:16:29,605 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label23.c [2021-10-28 09:16:29,613 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:16:29,613 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:16:29,716 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:16:29,723 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 [2021-10-28 09:16:29,723 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:16:29,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:29,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-10-28 09:16:29,772 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:29,773 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:29,774 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:29,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:29,782 INFO L85 PathProgramCache]: Analyzing trace with hash 724191355, now seen corresponding path program 1 times [2021-10-28 09:16:29,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:29,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51771767] [2021-10-28 09:16:29,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:29,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:30,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:16:30,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:30,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51771767] [2021-10-28 09:16:30,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51771767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:30,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:30,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:16:30,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998956223] [2021-10-28 09:16:30,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:30,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:30,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:30,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:30,406 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 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 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:31,274 INFO L93 Difference]: Finished difference Result 639 states and 1082 transitions. [2021-10-28 09:16:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:31,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2021-10-28 09:16:31,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:31,305 INFO L225 Difference]: With dead ends: 639 [2021-10-28 09:16:31,305 INFO L226 Difference]: Without dead ends: 318 [2021-10-28 09:16:31,316 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-10-28 09:16:31,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2021-10-28 09:16:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.4711538461538463) internal successors, (459), 312 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2021-10-28 09:16:31,403 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 133 [2021-10-28 09:16:31,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:31,404 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2021-10-28 09:16:31,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:31,405 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2021-10-28 09:16:31,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-10-28 09:16:31,411 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:31,412 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:31,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:16:31,412 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:31,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1132661744, now seen corresponding path program 1 times [2021-10-28 09:16:31,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:31,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499671744] [2021-10-28 09:16:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:31,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:31,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:16:31,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:31,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499671744] [2021-10-28 09:16:31,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499671744] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:31,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:31,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:16:31,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830815288] [2021-10-28 09:16:31,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:16:31,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:31,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:16:31,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:16:31,767 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:32,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:32,722 INFO L93 Difference]: Finished difference Result 989 states and 1492 transitions. [2021-10-28 09:16:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:16:32,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2021-10-28 09:16:32,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:32,728 INFO L225 Difference]: With dead ends: 989 [2021-10-28 09:16:32,728 INFO L226 Difference]: Without dead ends: 595 [2021-10-28 09:16:32,730 INFO L786 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 [2021-10-28 09:16:32,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2021-10-28 09:16:32,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2021-10-28 09:16:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.3383838383838385) internal successors, (795), 594 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 795 transitions. [2021-10-28 09:16:32,771 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 795 transitions. Word has length 137 [2021-10-28 09:16:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:32,772 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 795 transitions. [2021-10-28 09:16:32,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 795 transitions. [2021-10-28 09:16:32,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-10-28 09:16:32,786 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:32,787 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:32,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:16:32,788 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:32,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:32,791 INFO L85 PathProgramCache]: Analyzing trace with hash 822417955, now seen corresponding path program 1 times [2021-10-28 09:16:32,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:32,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57358385] [2021-10-28 09:16:32,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:32,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 09:16:32,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:32,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57358385] [2021-10-28 09:16:32,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57358385] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:32,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:32,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:16:32,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160392182] [2021-10-28 09:16:32,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:32,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:32,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:32,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:32,897 INFO L87 Difference]: Start difference. First operand 595 states and 795 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:33,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:33,578 INFO L93 Difference]: Finished difference Result 1753 states and 2346 transitions. [2021-10-28 09:16:33,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:33,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2021-10-28 09:16:33,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:33,587 INFO L225 Difference]: With dead ends: 1753 [2021-10-28 09:16:33,587 INFO L226 Difference]: Without dead ends: 1160 [2021-10-28 09:16:33,588 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:33,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2021-10-28 09:16:33,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1157. [2021-10-28 09:16:33,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.208477508650519) internal successors, (1397), 1156 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1397 transitions. [2021-10-28 09:16:33,638 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1397 transitions. Word has length 163 [2021-10-28 09:16:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:33,639 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1397 transitions. [2021-10-28 09:16:33,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1397 transitions. [2021-10-28 09:16:33,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-10-28 09:16:33,645 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:33,645 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:33,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:16:33,647 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:33,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:33,648 INFO L85 PathProgramCache]: Analyzing trace with hash -694289663, now seen corresponding path program 1 times [2021-10-28 09:16:33,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:33,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218927477] [2021-10-28 09:16:33,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:33,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:33,733 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-28 09:16:33,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:33,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218927477] [2021-10-28 09:16:33,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218927477] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:33,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:33,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:16:33,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95550976] [2021-10-28 09:16:33,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:33,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:33,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:33,737 INFO L87 Difference]: Start difference. First operand 1157 states and 1397 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:34,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:34,326 INFO L93 Difference]: Finished difference Result 2733 states and 3360 transitions. [2021-10-28 09:16:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:34,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 171 [2021-10-28 09:16:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:34,336 INFO L225 Difference]: With dead ends: 2733 [2021-10-28 09:16:34,337 INFO L226 Difference]: Without dead ends: 1293 [2021-10-28 09:16:34,341 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:34,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2021-10-28 09:16:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1293. [2021-10-28 09:16:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1292 states have (on average 1.1710526315789473) internal successors, (1513), 1292 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1513 transitions. [2021-10-28 09:16:34,392 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1513 transitions. Word has length 171 [2021-10-28 09:16:34,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:34,393 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 1513 transitions. [2021-10-28 09:16:34,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:34,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1513 transitions. [2021-10-28 09:16:34,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-10-28 09:16:34,398 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:34,399 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:34,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:16:34,400 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:34,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1035742500, now seen corresponding path program 1 times [2021-10-28 09:16:34,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:34,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227760093] [2021-10-28 09:16:34,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:34,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-28 09:16:34,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:34,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227760093] [2021-10-28 09:16:34,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227760093] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:34,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:34,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:16:34,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314275767] [2021-10-28 09:16:34,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:34,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:34,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:34,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:34,546 INFO L87 Difference]: Start difference. First operand 1293 states and 1513 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:35,120 INFO L93 Difference]: Finished difference Result 3145 states and 3691 transitions. [2021-10-28 09:16:35,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:35,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 [2021-10-28 09:16:35,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:35,134 INFO L225 Difference]: With dead ends: 3145 [2021-10-28 09:16:35,134 INFO L226 Difference]: Without dead ends: 1854 [2021-10-28 09:16:35,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:35,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2021-10-28 09:16:35,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1713. [2021-10-28 09:16:35,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1712 states have (on average 1.1764018691588785) internal successors, (2014), 1712 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2014 transitions. [2021-10-28 09:16:35,184 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2014 transitions. Word has length 173 [2021-10-28 09:16:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:35,185 INFO L470 AbstractCegarLoop]: Abstraction has 1713 states and 2014 transitions. [2021-10-28 09:16:35,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2014 transitions. [2021-10-28 09:16:35,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-28 09:16:35,191 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:35,191 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:35,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:16:35,192 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:35,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1038540324, now seen corresponding path program 1 times [2021-10-28 09:16:35,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:35,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931357079] [2021-10-28 09:16:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:35,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:16:35,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:35,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931357079] [2021-10-28 09:16:35,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931357079] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:35,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:35,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:16:35,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664992001] [2021-10-28 09:16:35,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:16:35,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:35,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:16:35,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:16:35,312 INFO L87 Difference]: Start difference. First operand 1713 states and 2014 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:36,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:36,426 INFO L93 Difference]: Finished difference Result 3454 states and 4055 transitions. [2021-10-28 09:16:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:16:36,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2021-10-28 09:16:36,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:36,448 INFO L225 Difference]: With dead ends: 3454 [2021-10-28 09:16:36,449 INFO L226 Difference]: Without dead ends: 1743 [2021-10-28 09:16:36,454 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:16:36,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2021-10-28 09:16:36,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1710. [2021-10-28 09:16:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1709 states have (on average 1.1597425394967817) internal successors, (1982), 1709 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:36,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 1982 transitions. [2021-10-28 09:16:36,505 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 1982 transitions. Word has length 174 [2021-10-28 09:16:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:36,507 INFO L470 AbstractCegarLoop]: Abstraction has 1710 states and 1982 transitions. [2021-10-28 09:16:36,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:36,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 1982 transitions. [2021-10-28 09:16:36,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-10-28 09:16:36,513 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:36,513 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:36,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:16:36,514 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:36,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:36,515 INFO L85 PathProgramCache]: Analyzing trace with hash -755945360, now seen corresponding path program 1 times [2021-10-28 09:16:36,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:36,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930300872] [2021-10-28 09:16:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:36,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-28 09:16:36,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:36,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930300872] [2021-10-28 09:16:36,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930300872] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:36,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:36,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:16:36,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3881857] [2021-10-28 09:16:36,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:16:36,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:36,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:16:36,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:16:36,668 INFO L87 Difference]: Start difference. First operand 1710 states and 1982 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:37,709 INFO L93 Difference]: Finished difference Result 3737 states and 4324 transitions. [2021-10-28 09:16:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:16:37,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-10-28 09:16:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:37,725 INFO L225 Difference]: With dead ends: 3737 [2021-10-28 09:16:37,725 INFO L226 Difference]: Without dead ends: 1743 [2021-10-28 09:16:37,728 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:16:37,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2021-10-28 09:16:37,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1710. [2021-10-28 09:16:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1709 states have (on average 1.122878876535986) internal successors, (1919), 1709 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 1919 transitions. [2021-10-28 09:16:37,784 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 1919 transitions. Word has length 191 [2021-10-28 09:16:37,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:37,785 INFO L470 AbstractCegarLoop]: Abstraction has 1710 states and 1919 transitions. [2021-10-28 09:16:37,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 1919 transitions. [2021-10-28 09:16:37,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-10-28 09:16:37,791 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:37,791 INFO L513 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:37,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:16:37,792 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:37,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:37,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1043778938, now seen corresponding path program 1 times [2021-10-28 09:16:37,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:37,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189427984] [2021-10-28 09:16:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:37,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:16:37,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:37,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189427984] [2021-10-28 09:16:37,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189427984] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:37,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:37,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:16:37,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7012514] [2021-10-28 09:16:37,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:37,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:37,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:37,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:37,899 INFO L87 Difference]: Start difference. First operand 1710 states and 1919 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:38,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:38,439 INFO L93 Difference]: Finished difference Result 3981 states and 4500 transitions. [2021-10-28 09:16:38,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:38,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-10-28 09:16:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:38,454 INFO L225 Difference]: With dead ends: 3981 [2021-10-28 09:16:38,454 INFO L226 Difference]: Without dead ends: 2273 [2021-10-28 09:16:38,457 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-10-28 09:16:38,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2132. [2021-10-28 09:16:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 2131 states have (on average 1.1130924448615673) internal successors, (2372), 2131 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2372 transitions. [2021-10-28 09:16:38,517 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2372 transitions. Word has length 195 [2021-10-28 09:16:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:38,518 INFO L470 AbstractCegarLoop]: Abstraction has 2132 states and 2372 transitions. [2021-10-28 09:16:38,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2372 transitions. [2021-10-28 09:16:38,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-10-28 09:16:38,526 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:38,526 INFO L513 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:38,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:16:38,527 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:38,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:38,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1666423825, now seen corresponding path program 1 times [2021-10-28 09:16:38,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:38,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136291917] [2021-10-28 09:16:38,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:38,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-10-28 09:16:38,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:38,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136291917] [2021-10-28 09:16:38,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136291917] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:38,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:38,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:16:38,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671889853] [2021-10-28 09:16:38,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:38,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:38,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:38,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:38,675 INFO L87 Difference]: Start difference. First operand 2132 states and 2372 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:39,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:39,140 INFO L93 Difference]: Finished difference Result 4682 states and 5196 transitions. [2021-10-28 09:16:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:39,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2021-10-28 09:16:39,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:39,158 INFO L225 Difference]: With dead ends: 4682 [2021-10-28 09:16:39,158 INFO L226 Difference]: Without dead ends: 2269 [2021-10-28 09:16:39,161 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:39,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2021-10-28 09:16:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2269. [2021-10-28 09:16:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2269 states, 2268 states have (on average 1.08994708994709) internal successors, (2472), 2268 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:39,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 2472 transitions. [2021-10-28 09:16:39,222 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 2472 transitions. Word has length 218 [2021-10-28 09:16:39,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:39,223 INFO L470 AbstractCegarLoop]: Abstraction has 2269 states and 2472 transitions. [2021-10-28 09:16:39,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:39,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 2472 transitions. [2021-10-28 09:16:39,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-10-28 09:16:39,232 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:39,232 INFO L513 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:39,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:16:39,233 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:39,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash 311285573, now seen corresponding path program 1 times [2021-10-28 09:16:39,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:39,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215108587] [2021-10-28 09:16:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:39,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-28 09:16:39,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:39,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215108587] [2021-10-28 09:16:39,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215108587] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:39,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:39,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:16:39,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851620058] [2021-10-28 09:16:39,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:39,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:39,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:39,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:39,313 INFO L87 Difference]: Start difference. First operand 2269 states and 2472 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) [2021-10-28 09:16:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:39,789 INFO L93 Difference]: Finished difference Result 4950 states and 5382 transitions. [2021-10-28 09:16:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:39,790 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 231 [2021-10-28 09:16:39,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:39,805 INFO L225 Difference]: With dead ends: 4950 [2021-10-28 09:16:39,805 INFO L226 Difference]: Without dead ends: 2683 [2021-10-28 09:16:39,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:39,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2021-10-28 09:16:39,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2123. [2021-10-28 09:16:39,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2122 states have (on average 1.0772855796418472) internal successors, (2286), 2122 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:39,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2286 transitions. [2021-10-28 09:16:39,875 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2286 transitions. Word has length 231 [2021-10-28 09:16:39,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:39,875 INFO L470 AbstractCegarLoop]: Abstraction has 2123 states and 2286 transitions. [2021-10-28 09:16:39,876 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) [2021-10-28 09:16:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2286 transitions. [2021-10-28 09:16:39,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-10-28 09:16:39,882 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:39,883 INFO L513 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:39,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:16:39,884 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:39,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:39,884 INFO L85 PathProgramCache]: Analyzing trace with hash -461205200, now seen corresponding path program 1 times [2021-10-28 09:16:39,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:39,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71529363] [2021-10-28 09:16:39,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:39,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:40,064 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:16:40,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:40,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71529363] [2021-10-28 09:16:40,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71529363] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:16:40,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826905753] [2021-10-28 09:16:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:40,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:16:40,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:16:40,072 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:16:40,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:16:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:40,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:16:40,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:16:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-28 09:16:41,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826905753] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:41,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:16:41,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-28 09:16:41,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222883803] [2021-10-28 09:16:41,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:41,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:41,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:41,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:16:41,152 INFO L87 Difference]: Start difference. First operand 2123 states and 2286 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:41,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:41,642 INFO L93 Difference]: Finished difference Result 4950 states and 5338 transitions. [2021-10-28 09:16:41,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:41,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 231 [2021-10-28 09:16:41,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:41,657 INFO L225 Difference]: With dead ends: 4950 [2021-10-28 09:16:41,657 INFO L226 Difference]: Without dead ends: 2689 [2021-10-28 09:16:41,660 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:16:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2021-10-28 09:16:41,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2549. [2021-10-28 09:16:41,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2548 states have (on average 1.0710361067503924) internal successors, (2729), 2548 states have internal predecessors, (2729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 2729 transitions. [2021-10-28 09:16:41,738 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 2729 transitions. Word has length 231 [2021-10-28 09:16:41,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:41,739 INFO L470 AbstractCegarLoop]: Abstraction has 2549 states and 2729 transitions. [2021-10-28 09:16:41,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:16:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 2729 transitions. [2021-10-28 09:16:41,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-28 09:16:41,751 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:16:41,751 INFO L513 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:41,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 09:16:41,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 09:16:41,967 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:16:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:41,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1543473761, now seen corresponding path program 1 times [2021-10-28 09:16:41,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:41,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632781027] [2021-10-28 09:16:41,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:41,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:16:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-28 09:16:42,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:16:42,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632781027] [2021-10-28 09:16:42,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632781027] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:16:42,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:16:42,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:16:42,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316620088] [2021-10-28 09:16:42,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:16:42,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:16:42,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:16:42,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:42,130 INFO L87 Difference]: Start difference. First operand 2549 states and 2729 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) [2021-10-28 09:16:42,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:16:42,624 INFO L93 Difference]: Finished difference Result 4248 states and 4552 transitions. [2021-10-28 09:16:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:16:42,625 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 234 [2021-10-28 09:16:42,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:16:42,625 INFO L225 Difference]: With dead ends: 4248 [2021-10-28 09:16:42,625 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:16:42,629 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:16:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:16:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:16:42,630 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) [2021-10-28 09:16:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:16:42,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2021-10-28 09:16:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:16:42,631 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:16:42,631 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) [2021-10-28 09:16:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:16:42,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:16:42,634 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:16:42,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:16:42,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:16:42,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:16:42,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:16:42,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:16:43,164 INFO L857 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,164 INFO L857 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,166 INFO L857 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,166 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-10-28 09:16:43,166 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-10-28 09:16:43,166 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-10-28 09:16:43,166 INFO L857 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-10-28 09:16:43,166 INFO L857 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-10-28 09:16:43,166 INFO L857 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-10-28 09:16:43,167 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-10-28 09:16:43,167 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-10-28 09:16:43,167 INFO L857 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,167 INFO L857 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,167 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,167 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-10-28 09:16:43,167 INFO L857 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-10-28 09:16:43,168 INFO L857 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-10-28 09:16:43,168 INFO L857 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-10-28 09:16:43,168 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-10-28 09:16:43,168 INFO L857 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,169 INFO L857 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,169 INFO L857 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,169 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-10-28 09:16:43,170 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-10-28 09:16:43,170 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-10-28 09:16:43,170 INFO L857 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-10-28 09:16:43,170 INFO L857 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-10-28 09:16:43,170 INFO L857 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-10-28 09:16:43,171 INFO L857 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-10-28 09:16:43,171 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-10-28 09:16:43,171 INFO L857 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-10-28 09:16:43,171 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-10-28 09:16:43,171 INFO L857 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,171 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,171 INFO L857 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,171 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-10-28 09:16:43,172 INFO L857 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-10-28 09:16:43,172 INFO L857 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-10-28 09:16:43,172 INFO L857 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-10-28 09:16:43,172 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-10-28 09:16:43,172 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-10-28 09:16:43,172 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-10-28 09:16:43,172 INFO L857 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,172 INFO L857 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,173 INFO L857 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,173 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-10-28 09:16:43,173 INFO L857 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-10-28 09:16:43,173 INFO L857 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-10-28 09:16:43,173 INFO L857 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-10-28 09:16:43,173 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-10-28 09:16:43,173 INFO L857 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-10-28 09:16:43,173 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-10-28 09:16:43,174 INFO L857 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,174 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,174 INFO L857 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,174 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-10-28 09:16:43,177 INFO L857 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-10-28 09:16:43,177 INFO L857 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-10-28 09:16:43,177 INFO L857 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-10-28 09:16:43,177 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-10-28 09:16:43,177 INFO L857 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,178 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,178 INFO L857 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,178 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-10-28 09:16:43,178 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-10-28 09:16:43,178 INFO L857 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-10-28 09:16:43,179 INFO L857 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-10-28 09:16:43,179 INFO L857 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-10-28 09:16:43,180 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-10-28 09:16:43,180 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-10-28 09:16:43,180 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-10-28 09:16:43,180 INFO L857 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,180 INFO L857 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,180 INFO L857 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,180 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-10-28 09:16:43,181 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:16:43,181 INFO L857 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-10-28 09:16:43,181 INFO L857 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-10-28 09:16:43,181 INFO L857 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-10-28 09:16:43,181 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-10-28 09:16:43,181 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-10-28 09:16:43,181 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-10-28 09:16:43,182 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-10-28 09:16:43,182 INFO L857 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,182 INFO L857 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,182 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,182 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-10-28 09:16:43,182 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-10-28 09:16:43,182 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-10-28 09:16:43,183 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-10-28 09:16:43,183 INFO L857 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-10-28 09:16:43,183 INFO L857 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-10-28 09:16:43,183 INFO L857 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-10-28 09:16:43,184 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-10-28 09:16:43,184 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-10-28 09:16:43,185 INFO L857 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,185 INFO L857 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,185 INFO L857 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,185 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-10-28 09:16:43,185 INFO L857 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-10-28 09:16:43,185 INFO L857 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-10-28 09:16:43,185 INFO L857 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-10-28 09:16:43,186 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-10-28 09:16:43,186 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-10-28 09:16:43,186 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:16:43,186 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-10-28 09:16:43,187 INFO L857 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,187 INFO L857 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,188 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,188 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-10-28 09:16:43,188 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-10-28 09:16:43,188 INFO L857 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-10-28 09:16:43,188 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-10-28 09:16:43,188 INFO L857 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-10-28 09:16:43,188 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-10-28 09:16:43,189 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-10-28 09:16:43,189 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-10-28 09:16:43,189 INFO L857 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,189 INFO L857 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,189 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,189 INFO L857 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-10-28 09:16:43,189 INFO L857 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-10-28 09:16:43,190 INFO L857 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-10-28 09:16:43,190 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-10-28 09:16:43,191 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-10-28 09:16:43,191 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,191 INFO L857 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,191 INFO L857 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,191 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-10-28 09:16:43,191 INFO L857 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-10-28 09:16:43,191 INFO L857 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-10-28 09:16:43,192 INFO L857 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-10-28 09:16:43,192 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-10-28 09:16:43,192 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-10-28 09:16:43,192 INFO L857 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-10-28 09:16:43,192 INFO L857 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-10-28 09:16:43,192 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-10-28 09:16:43,192 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-10-28 09:16:43,193 INFO L857 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-10-28 09:16:43,193 INFO L857 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,193 INFO L857 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,193 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-10-28 09:16:43,193 INFO L857 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-10-28 09:16:43,193 INFO L857 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-10-28 09:16:43,193 INFO L857 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-10-28 09:16:43,194 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-10-28 09:16:43,194 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-10-28 09:16:43,194 INFO L857 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-10-28 09:16:43,194 INFO L857 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-10-28 09:16:43,194 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-10-28 09:16:43,196 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse7 (= ~a25~0 1)) (.cse5 (<= ~a19~0 0)) (.cse4 (not (= ~a11~0 1))) (.cse6 (= ~a17~0 8)) (.cse8 (= ~a21~0 1)) (.cse3 (<= ~a28~0 10)) (.cse9 (= ~a19~0 1)) (.cse1 (<= ~a25~0 0)) (.cse2 (<= 10 ~a28~0)) (.cse0 (<= ~a17~0 7))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5) (and (<= ~a28~0 8) .cse4) (and .cse6 .cse7 (not (= 3 ULTIMATE.start_calculate_output_~input)) (= ~a28~0 11) .cse8 .cse9 .cse4) (and .cse2 .cse6 .cse8 .cse3 .cse9) (and .cse6 .cse7 .cse8 .cse9 (= ~a28~0 9)) (and .cse2 .cse4 .cse1 .cse5) (and .cse0 .cse5) (and .cse6 .cse8 .cse3 .cse9 .cse4) (and .cse6 (<= 9 ~a28~0) .cse8 .cse3 .cse9 .cse1) (and .cse2 .cse0) (<= ~a28~0 7))) [2021-10-28 09:16:43,196 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,196 INFO L857 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,199 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-10-28 09:16:43,199 INFO L857 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-10-28 09:16:43,200 INFO L857 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-10-28 09:16:43,200 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-10-28 09:16:43,200 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-10-28 09:16:43,200 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-10-28 09:16:43,200 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-10-28 09:16:43,200 INFO L857 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,201 INFO L857 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,201 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-10-28 09:16:43,201 INFO L857 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-10-28 09:16:43,201 INFO L857 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-10-28 09:16:43,201 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-10-28 09:16:43,201 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-10-28 09:16:43,201 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-10-28 09:16:43,201 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-10-28 09:16:43,202 INFO L857 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-10-28 09:16:43,202 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-10-28 09:16:43,202 INFO L857 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,202 INFO L857 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,202 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-10-28 09:16:43,202 INFO L857 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-10-28 09:16:43,202 INFO L857 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-10-28 09:16:43,203 INFO L857 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-10-28 09:16:43,203 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:16:43,203 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-10-28 09:16:43,203 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-10-28 09:16:43,203 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse7 (= ~a25~0 1)) (.cse5 (<= ~a19~0 0)) (.cse4 (not (= ~a11~0 1))) (.cse6 (= ~a17~0 8)) (.cse8 (= ~a21~0 1)) (.cse3 (<= ~a28~0 10)) (.cse9 (= ~a19~0 1)) (.cse1 (<= ~a25~0 0)) (.cse2 (<= 10 ~a28~0)) (.cse0 (<= ~a17~0 7))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5) (and (<= ~a28~0 8) .cse4) (and .cse6 .cse7 (not (= 3 ULTIMATE.start_calculate_output_~input)) (= ~a28~0 11) .cse8 .cse9 .cse4) (and .cse2 .cse6 .cse8 .cse3 .cse9) (and .cse6 .cse7 .cse8 .cse9 (= ~a28~0 9)) (and .cse2 .cse4 .cse1 .cse5) (and .cse0 .cse5) (and .cse6 .cse8 .cse3 .cse9 .cse4) (and .cse6 (<= 9 ~a28~0) .cse8 .cse3 .cse9 .cse1) (and .cse2 .cse0) (<= ~a28~0 7))) [2021-10-28 09:16:43,203 INFO L857 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,204 INFO L857 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,204 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-10-28 09:16:43,204 INFO L857 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-10-28 09:16:43,204 INFO L857 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-10-28 09:16:43,204 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-10-28 09:16:43,204 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-10-28 09:16:43,204 INFO L857 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,205 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,205 INFO L857 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-10-28 09:16:43,205 INFO L857 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-10-28 09:16:43,205 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-10-28 09:16:43,205 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-10-28 09:16:43,205 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-10-28 09:16:43,205 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-10-28 09:16:43,205 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-10-28 09:16:43,206 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-28 09:16:43,206 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-10-28 09:16:43,206 INFO L857 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,206 INFO L857 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,206 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-10-28 09:16:43,206 INFO L857 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,206 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:16:43,207 INFO L857 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-10-28 09:16:43,207 INFO L857 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-10-28 09:16:43,207 INFO L857 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-10-28 09:16:43,207 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-10-28 09:16:43,207 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-10-28 09:16:43,207 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-10-28 09:16:43,207 INFO L857 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,208 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,208 INFO L857 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,208 INFO L857 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-10-28 09:16:43,208 INFO L857 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-10-28 09:16:43,208 INFO L857 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-10-28 09:16:43,208 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-10-28 09:16:43,208 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-10-28 09:16:43,208 INFO L857 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,209 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,209 INFO L857 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-10-28 09:16:43,209 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-10-28 09:16:43,210 INFO L857 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-10-28 09:16:43,210 INFO L857 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-10-28 09:16:43,210 INFO L857 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-10-28 09:16:43,210 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-10-28 09:16:43,210 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-10-28 09:16:43,214 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:16:43,216 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:16:43,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:16:43 BoogieIcfgContainer [2021-10-28 09:16:43,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:16:43,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:16:43,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:16:43,262 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:16:43,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:16:29" (3/4) ... [2021-10-28 09:16:43,266 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:16:43,302 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 09:16:43,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:16:43,305 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:16:43,307 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:16:43,491 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:16:43,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:16:43,493 INFO L168 Benchmark]: Toolchain (without parser) took 16250.86 ms. Allocated memory was 111.1 MB in the beginning and 220.2 MB in the end (delta: 109.1 MB). Free memory was 89.8 MB in the beginning and 106.4 MB in the end (delta: -16.6 MB). Peak memory consumption was 90.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:43,494 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 86.0 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:16:43,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.71 ms. Allocated memory is still 111.1 MB. Free memory was 89.6 MB in the beginning and 65.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:43,495 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.88 ms. Allocated memory is still 111.1 MB. Free memory was 65.5 MB in the beginning and 59.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:43,495 INFO L168 Benchmark]: Boogie Preprocessor took 94.58 ms. Allocated memory is still 111.1 MB. Free memory was 59.9 MB in the beginning and 55.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:43,496 INFO L168 Benchmark]: RCFGBuilder took 1411.18 ms. Allocated memory is still 111.1 MB. Free memory was 55.7 MB in the beginning and 36.2 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:43,496 INFO L168 Benchmark]: TraceAbstraction took 13666.63 ms. Allocated memory was 111.1 MB in the beginning and 220.2 MB in the end (delta: 109.1 MB). Free memory was 35.5 MB in the beginning and 121.1 MB in the end (delta: -85.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:43,497 INFO L168 Benchmark]: Witness Printer took 229.53 ms. Allocated memory is still 220.2 MB. Free memory was 121.1 MB in the beginning and 106.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:43,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 86.0 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 728.71 ms. Allocated memory is still 111.1 MB. Free memory was 89.6 MB in the beginning and 65.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.88 ms. Allocated memory is still 111.1 MB. Free memory was 65.5 MB in the beginning and 59.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.58 ms. Allocated memory is still 111.1 MB. Free memory was 59.9 MB in the beginning and 55.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1411.18 ms. Allocated memory is still 111.1 MB. Free memory was 55.7 MB in the beginning and 36.2 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13666.63 ms. Allocated memory was 111.1 MB in the beginning and 220.2 MB in the end (delta: 109.1 MB). Free memory was 35.5 MB in the beginning and 121.1 MB in the end (delta: -85.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * Witness Printer took 229.53 ms. Allocated memory is still 220.2 MB. Free memory was 121.1 MB in the beginning and 106.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 581]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.5s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1416 SDtfs, 1857 SDslu, 269 SDs, 0 SdLazy, 5525 SolverSat, 929 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2549occurred in iteration=11, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1056 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 307 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3018 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 142 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 2482 NumberOfCodeBlocks, 2482 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2469 ConstructedInterpolants, 0 QuantifiedInterpolants, 7968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 371 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 1011/1069 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: 616]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 7 && a25 <= 0) || (((10 <= a28 && a28 <= 10) && !(a11 == 1)) && a19 <= 0)) || (a28 <= 8 && !(a11 == 1))) || ((((((a17 == 8 && a25 == 1) && !(3 == input)) && a28 == 11) && a21 == 1) && a19 == 1) && !(a11 == 1))) || ((((10 <= a28 && a17 == 8) && a21 == 1) && a28 <= 10) && a19 == 1)) || ((((a17 == 8 && a25 == 1) && a21 == 1) && a19 == 1) && a28 == 9)) || (((10 <= a28 && !(a11 == 1)) && a25 <= 0) && a19 <= 0)) || (a17 <= 7 && a19 <= 0)) || ((((a17 == 8 && a21 == 1) && a28 <= 10) && a19 == 1) && !(a11 == 1))) || (((((a17 == 8 && 9 <= a28) && a21 == 1) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (10 <= a28 && a17 <= 7)) || a28 <= 7 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 7 && a25 <= 0) || (((10 <= a28 && a28 <= 10) && !(a11 == 1)) && a19 <= 0)) || (a28 <= 8 && !(a11 == 1))) || ((((((a17 == 8 && a25 == 1) && !(3 == input)) && a28 == 11) && a21 == 1) && a19 == 1) && !(a11 == 1))) || ((((10 <= a28 && a17 == 8) && a21 == 1) && a28 <= 10) && a19 == 1)) || ((((a17 == 8 && a25 == 1) && a21 == 1) && a19 == 1) && a28 == 9)) || (((10 <= a28 && !(a11 == 1)) && a25 <= 0) && a19 <= 0)) || (a17 <= 7 && a19 <= 0)) || ((((a17 == 8 && a21 == 1) && a28 <= 10) && a19 == 1) && !(a11 == 1))) || (((((a17 == 8 && 9 <= a28) && a21 == 1) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (10 <= a28 && a17 <= 7)) || a28 <= 7 RESULT: Ultimate proved your program to be correct! [2021-10-28 09:16:43,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_affcba0c-43b1-4aa7-93d9-93e0fa12964c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...