./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label08.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_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/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_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/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_6703a318-970a-4db6-99eb-80d2b692e602/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 83ba8dc0b26e7572bb3969c6f3d087c218a7cd98d221b81c07246f42fbf2250b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:40:54,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:40:54,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:40:54,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:40:54,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:40:54,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:40:54,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:40:54,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:40:54,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:40:54,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:40:54,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:40:54,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:40:54,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:40:54,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:40:54,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:40:54,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:40:54,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:40:54,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:40:54,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:40:54,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:40:54,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:40:54,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:40:54,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:40:54,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:40:54,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:40:54,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:40:54,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:40:54,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:40:54,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:40:54,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:40:54,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:40:54,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:40:54,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:40:54,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:40:54,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:40:54,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:40:54,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:40:54,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:40:54,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:40:54,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:40:54,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:40:54,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:40:54,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:40:54,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:40:54,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:40:54,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:40:54,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:40:54,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:40:54,858 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:40:54,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:40:54,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:40:54,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:40:54,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:40:54,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:40:54,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:40:54,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:40:54,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:40:54,861 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:40:54,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:40:54,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:40:54,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:40:54,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:40:54,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:40:54,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:40:54,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:40:54,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:40:54,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:40:54,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:40:54,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:40:54,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:40:54,864 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:40:54,864 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:40:54,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:40:54,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:40:54,865 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_6703a318-970a-4db6-99eb-80d2b692e602/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83ba8dc0b26e7572bb3969c6f3d087c218a7cd98d221b81c07246f42fbf2250b [2021-10-28 09:40:55,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:40:55,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:40:55,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:40:55,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:40:55,137 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:40:55,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/eca-rers2012/Problem10_label08.c [2021-10-28 09:40:55,203 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/data/c7e422274/50ea34640f994382b19dfa2e6d392b06/FLAGd0de5162c [2021-10-28 09:40:55,804 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:40:55,804 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/sv-benchmarks/c/eca-rers2012/Problem10_label08.c [2021-10-28 09:40:55,833 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/data/c7e422274/50ea34640f994382b19dfa2e6d392b06/FLAGd0de5162c [2021-10-28 09:40:56,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/data/c7e422274/50ea34640f994382b19dfa2e6d392b06 [2021-10-28 09:40:56,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:40:56,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:40:56,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:40:56,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:40:56,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:40:56,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717b088a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56, skipping insertion in model container [2021-10-28 09:40:56,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:40:56,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:40:56,403 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_6703a318-970a-4db6-99eb-80d2b692e602/sv-benchmarks/c/eca-rers2012/Problem10_label08.c[4672,4685] [2021-10-28 09:40:56,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:40:56,622 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:40:56,661 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_6703a318-970a-4db6-99eb-80d2b692e602/sv-benchmarks/c/eca-rers2012/Problem10_label08.c[4672,4685] [2021-10-28 09:40:56,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:40:56,789 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:40:56,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56 WrapperNode [2021-10-28 09:40:56,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:40:56,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:40:56,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:40:56,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:40:56,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:40:56,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:40:56,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:40:56,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:40:56,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:40:56,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:40:56,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:40:56,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:40:56,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (1/1) ... [2021-10-28 09:40:56,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:40:56,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:40:57,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:40:57,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:40:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:40:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:40:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:40:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:40:58,453 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:40:58,454 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 09:40:58,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:58 BoogieIcfgContainer [2021-10-28 09:40:58,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:40:58,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:40:58,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:40:58,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:40:58,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:40:56" (1/3) ... [2021-10-28 09:40:58,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8be7370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:40:58, skipping insertion in model container [2021-10-28 09:40:58,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:56" (2/3) ... [2021-10-28 09:40:58,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8be7370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:40:58, skipping insertion in model container [2021-10-28 09:40:58,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:58" (3/3) ... [2021-10-28 09:40:58,467 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label08.c [2021-10-28 09:40:58,477 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:40:58,477 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:40:58,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:40:58,532 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 09:40:58,532 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:40:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 09:40:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 09:40:58,561 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:58,562 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] [2021-10-28 09:40:58,562 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:40:58,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:58,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2102454322, now seen corresponding path program 1 times [2021-10-28 09:40:58,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:58,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928525168] [2021-10-28 09:40:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:58,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:58,894 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 09:40:58,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:40:58,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928525168] [2021-10-28 09:40:58,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928525168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:58,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:58,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:40:58,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754611819] [2021-10-28 09:40:58,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:40:58,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:40:58,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:40:58,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:40:58,937 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 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 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 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 09:40:59,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:59,831 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-10-28 09:40:59,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:40:59,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2021-10-28 09:40:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:59,855 INFO L225 Difference]: With dead ends: 552 [2021-10-28 09:40:59,856 INFO L226 Difference]: Without dead ends: 282 [2021-10-28 09:40:59,863 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 09:40:59,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-28 09:40:59,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-10-28 09:40:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 0 states have call successors, (0), 0 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 09:40:59,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2021-10-28 09:40:59,920 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 40 [2021-10-28 09:40:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:59,921 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2021-10-28 09:40:59,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 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 09:40:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2021-10-28 09:40:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-10-28 09:40:59,926 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:59,926 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:40:59,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:40:59,927 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:40:59,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:59,928 INFO L85 PathProgramCache]: Analyzing trace with hash -130085954, now seen corresponding path program 1 times [2021-10-28 09:40:59,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:40:59,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839375606] [2021-10-28 09:40:59,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:59,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:40:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:00,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:00,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839375606] [2021-10-28 09:41:00,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839375606] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:41:00,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369434027] [2021-10-28 09:41:00,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:00,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:41:00,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:00,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:41:00,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:41:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:00,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:41:00,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-28 09:41:00,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369434027] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:00,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:41:00,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-28 09:41:00,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243307526] [2021-10-28 09:41:00,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:00,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:00,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:00,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:00,737 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 09:41:01,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:01,277 INFO L93 Difference]: Finished difference Result 562 states and 752 transitions. [2021-10-28 09:41:01,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:01,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 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 106 [2021-10-28 09:41:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:01,282 INFO L225 Difference]: With dead ends: 562 [2021-10-28 09:41:01,282 INFO L226 Difference]: Without dead ends: 560 [2021-10-28 09:41:01,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:41:01,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-28 09:41:01,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 421. [2021-10-28 09:41:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4071428571428573) internal successors, (591), 420 states have internal predecessors, (591), 0 states have call successors, (0), 0 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 09:41:01,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 591 transitions. [2021-10-28 09:41:01,309 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 591 transitions. Word has length 106 [2021-10-28 09:41:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:01,310 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 591 transitions. [2021-10-28 09:41:01,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 09:41:01,311 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 591 transitions. [2021-10-28 09:41:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-28 09:41:01,325 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:01,326 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:01,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:01,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:41:01,541 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:01,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:01,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1546461733, now seen corresponding path program 1 times [2021-10-28 09:41:01,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:01,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234846517] [2021-10-28 09:41:01,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:01,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:01,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:01,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234846517] [2021-10-28 09:41:01,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234846517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:01,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:01,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:01,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208599020] [2021-10-28 09:41:01,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:01,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:01,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:01,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:01,706 INFO L87 Difference]: Start difference. First operand 421 states and 591 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:02,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:02,206 INFO L93 Difference]: Finished difference Result 979 states and 1339 transitions. [2021-10-28 09:41:02,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:02,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-10-28 09:41:02,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:02,211 INFO L225 Difference]: With dead ends: 979 [2021-10-28 09:41:02,212 INFO L226 Difference]: Without dead ends: 560 [2021-10-28 09:41:02,213 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 09:41:02,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-28 09:41:02,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-10-28 09:41:02,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3237924865831843) internal successors, (740), 559 states have internal predecessors, (740), 0 states have call successors, (0), 0 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 09:41:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 740 transitions. [2021-10-28 09:41:02,237 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 740 transitions. Word has length 109 [2021-10-28 09:41:02,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:02,238 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 740 transitions. [2021-10-28 09:41:02,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 740 transitions. [2021-10-28 09:41:02,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-10-28 09:41:02,244 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:02,245 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:02,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:41:02,245 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:02,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:02,246 INFO L85 PathProgramCache]: Analyzing trace with hash 254054476, now seen corresponding path program 1 times [2021-10-28 09:41:02,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:02,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756729980] [2021-10-28 09:41:02,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:02,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:02,317 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:02,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:02,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756729980] [2021-10-28 09:41:02,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756729980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:02,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:02,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:02,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637951630] [2021-10-28 09:41:02,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:02,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:02,322 INFO L87 Difference]: Start difference. First operand 560 states and 740 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 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 09:41:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:02,894 INFO L93 Difference]: Finished difference Result 1257 states and 1758 transitions. [2021-10-28 09:41:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:02,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-10-28 09:41:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:02,900 INFO L225 Difference]: With dead ends: 1257 [2021-10-28 09:41:02,900 INFO L226 Difference]: Without dead ends: 838 [2021-10-28 09:41:02,901 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 09:41:02,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2021-10-28 09:41:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 699. [2021-10-28 09:41:02,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.3094555873925502) internal successors, (914), 698 states have internal predecessors, (914), 0 states have call successors, (0), 0 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 09:41:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 914 transitions. [2021-10-28 09:41:02,920 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 914 transitions. Word has length 115 [2021-10-28 09:41:02,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:02,921 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 914 transitions. [2021-10-28 09:41:02,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 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 09:41:02,921 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 914 transitions. [2021-10-28 09:41:02,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-10-28 09:41:02,924 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:02,925 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, 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] [2021-10-28 09:41:02,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:41:02,925 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:02,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:02,926 INFO L85 PathProgramCache]: Analyzing trace with hash 93286863, now seen corresponding path program 1 times [2021-10-28 09:41:02,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:02,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889123259] [2021-10-28 09:41:02,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:02,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:03,012 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-28 09:41:03,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:03,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889123259] [2021-10-28 09:41:03,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889123259] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:03,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:03,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:41:03,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249002369] [2021-10-28 09:41:03,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:03,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:03,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:03,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:03,015 INFO L87 Difference]: Start difference. First operand 699 states and 914 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:03,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:03,490 INFO L93 Difference]: Finished difference Result 1535 states and 2010 transitions. [2021-10-28 09:41:03,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:03,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-10-28 09:41:03,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:03,501 INFO L225 Difference]: With dead ends: 1535 [2021-10-28 09:41:03,501 INFO L226 Difference]: Without dead ends: 977 [2021-10-28 09:41:03,502 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 09:41:03,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-28 09:41:03,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-10-28 09:41:03,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.1905737704918034) internal successors, (1162), 976 states have internal predecessors, (1162), 0 states have call successors, (0), 0 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 09:41:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1162 transitions. [2021-10-28 09:41:03,527 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1162 transitions. Word has length 175 [2021-10-28 09:41:03,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:03,528 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1162 transitions. [2021-10-28 09:41:03,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1162 transitions. [2021-10-28 09:41:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-10-28 09:41:03,531 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:03,531 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, 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] [2021-10-28 09:41:03,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:41:03,531 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:03,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:03,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1258741848, now seen corresponding path program 1 times [2021-10-28 09:41:03,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:03,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710263531] [2021-10-28 09:41:03,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:03,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:03,646 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:03,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:03,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710263531] [2021-10-28 09:41:03,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710263531] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:03,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:03,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:03,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242599884] [2021-10-28 09:41:03,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:03,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:03,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:03,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:03,649 INFO L87 Difference]: Start difference. First operand 977 states and 1162 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 09:41:04,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:04,131 INFO L93 Difference]: Finished difference Result 2091 states and 2557 transitions. [2021-10-28 09:41:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:04,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 192 [2021-10-28 09:41:04,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:04,139 INFO L225 Difference]: With dead ends: 2091 [2021-10-28 09:41:04,139 INFO L226 Difference]: Without dead ends: 1255 [2021-10-28 09:41:04,141 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 09:41:04,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-10-28 09:41:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2021-10-28 09:41:04,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.1650717703349283) internal successors, (1461), 1254 states have internal predecessors, (1461), 0 states have call successors, (0), 0 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 09:41:04,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1461 transitions. [2021-10-28 09:41:04,173 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1461 transitions. Word has length 192 [2021-10-28 09:41:04,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:04,174 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1461 transitions. [2021-10-28 09:41:04,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 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 09:41:04,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1461 transitions. [2021-10-28 09:41:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-10-28 09:41:04,179 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:04,180 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:04,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:41:04,180 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:04,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash 576836307, now seen corresponding path program 1 times [2021-10-28 09:41:04,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:04,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063048092] [2021-10-28 09:41:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:04,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:04,470 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:04,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:04,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063048092] [2021-10-28 09:41:04,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063048092] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:04,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:04,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:41:04,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422917852] [2021-10-28 09:41:04,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:41:04,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:04,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:41:04,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:04,475 INFO L87 Difference]: Start difference. First operand 1255 states and 1461 transitions. Second operand has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 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 09:41:04,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:04,996 INFO L93 Difference]: Finished difference Result 2424 states and 2831 transitions. [2021-10-28 09:41:04,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:41:04,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 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 247 [2021-10-28 09:41:04,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:05,004 INFO L225 Difference]: With dead ends: 2424 [2021-10-28 09:41:05,004 INFO L226 Difference]: Without dead ends: 1255 [2021-10-28 09:41:05,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:05,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-10-28 09:41:05,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2021-10-28 09:41:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.161084529505582) internal successors, (1456), 1254 states have internal predecessors, (1456), 0 states have call successors, (0), 0 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 09:41:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1456 transitions. [2021-10-28 09:41:05,038 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1456 transitions. Word has length 247 [2021-10-28 09:41:05,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:05,039 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1456 transitions. [2021-10-28 09:41:05,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.285714285714285) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 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 09:41:05,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1456 transitions. [2021-10-28 09:41:05,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-10-28 09:41:05,044 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:05,045 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:05,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:41:05,045 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:05,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:05,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1922462329, now seen corresponding path program 1 times [2021-10-28 09:41:05,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:05,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662250856] [2021-10-28 09:41:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:05,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-28 09:41:05,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:05,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662250856] [2021-10-28 09:41:05,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662250856] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:05,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:05,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:05,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086729116] [2021-10-28 09:41:05,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:05,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:05,189 INFO L87 Difference]: Start difference. First operand 1255 states and 1456 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 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 09:41:05,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:05,705 INFO L93 Difference]: Finished difference Result 1813 states and 2098 transitions. [2021-10-28 09:41:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:05,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 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 283 [2021-10-28 09:41:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:05,717 INFO L225 Difference]: With dead ends: 1813 [2021-10-28 09:41:05,717 INFO L226 Difference]: Without dead ends: 1811 [2021-10-28 09:41:05,718 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 09:41:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2021-10-28 09:41:05,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1255. [2021-10-28 09:41:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.161084529505582) internal successors, (1456), 1254 states have internal predecessors, (1456), 0 states have call successors, (0), 0 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 09:41:05,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1456 transitions. [2021-10-28 09:41:05,760 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1456 transitions. Word has length 283 [2021-10-28 09:41:05,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:05,761 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1456 transitions. [2021-10-28 09:41:05,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 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 09:41:05,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1456 transitions. [2021-10-28 09:41:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-10-28 09:41:05,769 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:05,769 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-28 09:41:05,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:41:05,770 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:05,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1345034793, now seen corresponding path program 1 times [2021-10-28 09:41:05,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:05,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014396095] [2021-10-28 09:41:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:05,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2021-10-28 09:41:05,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:05,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014396095] [2021-10-28 09:41:05,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014396095] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:05,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:05,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:05,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332411630] [2021-10-28 09:41:05,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:05,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:05,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:05,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:05,986 INFO L87 Difference]: Start difference. First operand 1255 states and 1456 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:06,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:06,482 INFO L93 Difference]: Finished difference Result 1396 states and 1605 transitions. [2021-10-28 09:41:06,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:06,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318 [2021-10-28 09:41:06,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:06,494 INFO L225 Difference]: With dead ends: 1396 [2021-10-28 09:41:06,494 INFO L226 Difference]: Without dead ends: 1394 [2021-10-28 09:41:06,495 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 09:41:06,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-28 09:41:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1116. [2021-10-28 09:41:06,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1713004484304932) internal successors, (1306), 1115 states have internal predecessors, (1306), 0 states have call successors, (0), 0 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 09:41:06,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1306 transitions. [2021-10-28 09:41:06,525 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1306 transitions. Word has length 318 [2021-10-28 09:41:06,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:06,526 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1306 transitions. [2021-10-28 09:41:06,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:41:06,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1306 transitions. [2021-10-28 09:41:06,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-10-28 09:41:06,533 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:06,533 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-28 09:41:06,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:41:06,534 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:06,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:06,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1863423575, now seen corresponding path program 1 times [2021-10-28 09:41:06,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:06,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412903685] [2021-10-28 09:41:06,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:06,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:06,702 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-28 09:41:06,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:06,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412903685] [2021-10-28 09:41:06,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412903685] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:06,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:06,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:06,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186272260] [2021-10-28 09:41:06,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:06,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:06,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:06,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:06,708 INFO L87 Difference]: Start difference. First operand 1116 states and 1306 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 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 09:41:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:07,205 INFO L93 Difference]: Finished difference Result 2369 states and 2844 transitions. [2021-10-28 09:41:07,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:07,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 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 339 [2021-10-28 09:41:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:07,214 INFO L225 Difference]: With dead ends: 2369 [2021-10-28 09:41:07,214 INFO L226 Difference]: Without dead ends: 1394 [2021-10-28 09:41:07,218 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 09:41:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-28 09:41:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2021-10-28 09:41:07,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.164274322169059) internal successors, (1460), 1254 states have internal predecessors, (1460), 0 states have call successors, (0), 0 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 09:41:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1460 transitions. [2021-10-28 09:41:07,250 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1460 transitions. Word has length 339 [2021-10-28 09:41:07,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:07,250 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1460 transitions. [2021-10-28 09:41:07,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 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 09:41:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1460 transitions. [2021-10-28 09:41:07,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-10-28 09:41:07,257 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:07,258 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:07,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:41:07,259 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:07,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1058902866, now seen corresponding path program 1 times [2021-10-28 09:41:07,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:07,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476413195] [2021-10-28 09:41:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:07,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:07,492 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 313 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:07,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:07,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476413195] [2021-10-28 09:41:07,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476413195] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:41:07,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474418767] [2021-10-28 09:41:07,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:07,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:41:07,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:07,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:41:07,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:41:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:07,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:41:07,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-10-28 09:41:08,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474418767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:08,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:41:08,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-28 09:41:08,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592556516] [2021-10-28 09:41:08,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:08,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:08,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:08,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:08,539 INFO L87 Difference]: Start difference. First operand 1255 states and 1460 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 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 09:41:09,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:09,043 INFO L93 Difference]: Finished difference Result 3203 states and 3742 transitions. [2021-10-28 09:41:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:09,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 340 [2021-10-28 09:41:09,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:09,055 INFO L225 Difference]: With dead ends: 3203 [2021-10-28 09:41:09,055 INFO L226 Difference]: Without dead ends: 2089 [2021-10-28 09:41:09,057 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:41:09,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-10-28 09:41:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2021-10-28 09:41:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2088 states have (on average 1.1345785440613028) internal successors, (2369), 2088 states have internal predecessors, (2369), 0 states have call successors, (0), 0 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 09:41:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2369 transitions. [2021-10-28 09:41:09,128 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2369 transitions. Word has length 340 [2021-10-28 09:41:09,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:09,129 INFO L470 AbstractCegarLoop]: Abstraction has 2089 states and 2369 transitions. [2021-10-28 09:41:09,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 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 09:41:09,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2369 transitions. [2021-10-28 09:41:09,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-10-28 09:41:09,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:41:09,139 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:09,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:09,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:41:09,354 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:41:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:41:09,354 INFO L85 PathProgramCache]: Analyzing trace with hash 539129582, now seen corresponding path program 1 times [2021-10-28 09:41:09,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:41:09,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665060125] [2021-10-28 09:41:09,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:09,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:41:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-10-28 09:41:09,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:41:09,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665060125] [2021-10-28 09:41:09,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665060125] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:41:09,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:09,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:41:09,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362478679] [2021-10-28 09:41:09,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:41:09,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:41:09,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:41:09,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:41:09,498 INFO L87 Difference]: Start difference. First operand 2089 states and 2369 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 09:41:09,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:41:09,984 INFO L93 Difference]: Finished difference Result 4035 states and 4592 transitions. [2021-10-28 09:41:09,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:41:09,985 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 353 [2021-10-28 09:41:09,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:41:09,986 INFO L225 Difference]: With dead ends: 4035 [2021-10-28 09:41:09,986 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:41:09,990 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 09:41:09,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:41:09,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:41:09,990 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 09:41:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:41:09,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 353 [2021-10-28 09:41:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:41:09,991 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:41:09,991 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 09:41:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:41:09,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:41:09,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:41:09,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:41:09,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:41:10,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:10,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:10,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:41:10,254 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-28 09:41:10,254 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-28 09:41:10,254 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-28 09:41:10,254 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-28 09:41:10,254 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-28 09:41:10,255 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-28 09:41:10,256 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-28 09:41:10,257 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-28 09:41:10,258 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-28 09:41:10,259 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-28 09:41:10,260 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-28 09:41:10,261 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,261 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,261 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,261 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,261 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,261 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,261 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-28 09:41:10,261 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-28 09:41:10,265 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-28 09:41:10,265 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-28 09:41:10,265 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-28 09:41:10,265 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-28 09:41:10,265 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-28 09:41:10,265 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-28 09:41:10,266 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-28 09:41:10,266 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-28 09:41:10,266 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-28 09:41:10,266 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,266 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,266 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,267 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,267 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,267 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-28 09:41:10,268 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-28 09:41:10,268 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-28 09:41:10,268 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-28 09:41:10,268 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-28 09:41:10,269 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-28 09:41:10,269 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-28 09:41:10,269 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-28 09:41:10,269 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-28 09:41:10,269 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-28 09:41:10,270 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-28 09:41:10,270 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-28 09:41:10,270 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-28 09:41:10,270 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-28 09:41:10,270 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,270 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,270 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,271 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,271 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,271 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-28 09:41:10,271 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:41:10,271 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-28 09:41:10,271 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-28 09:41:10,272 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-28 09:41:10,272 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-28 09:41:10,272 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-28 09:41:10,272 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse3 (<= 7 ~a19~0)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 4) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 .cse3 .cse1 (= ~a10~0 2) .cse2) (and .cse0 (= ~a10~0 3) .cse1 .cse2) (and .cse3 (= ~a10~0 1) .cse1 .cse2))) [2021-10-28 09:41:10,272 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-28 09:41:10,273 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-28 09:41:10,273 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-28 09:41:10,283 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-28 09:41:10,284 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,284 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,284 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,284 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,284 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,285 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-28 09:41:10,285 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-28 09:41:10,285 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-28 09:41:10,285 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-28 09:41:10,285 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-28 09:41:10,285 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-28 09:41:10,285 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-28 09:41:10,286 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-28 09:41:10,286 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-28 09:41:10,286 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-28 09:41:10,286 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-28 09:41:10,286 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-28 09:41:10,286 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-28 09:41:10,287 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-28 09:41:10,287 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:41:10,287 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,288 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,288 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,288 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,288 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,288 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-28 09:41:10,288 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-28 09:41:10,289 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-28 09:41:10,289 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-28 09:41:10,289 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-28 09:41:10,289 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-28 09:41:10,289 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-28 09:41:10,292 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-28 09:41:10,292 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-28 09:41:10,292 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,292 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,292 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,292 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,293 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:41:10,293 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,294 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-28 09:41:10,294 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-28 09:41:10,294 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-28 09:41:10,294 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-28 09:41:10,294 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-28 09:41:10,294 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-28 09:41:10,295 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-28 09:41:10,295 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-28 09:41:10,295 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-28 09:41:10,295 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-28 09:41:10,295 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-28 09:41:10,295 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-28 09:41:10,296 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse3 (<= 7 ~a19~0)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 4) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 .cse3 .cse1 (= ~a10~0 2) .cse2) (and .cse0 (= ~a10~0 3) .cse1 .cse2) (and .cse3 (= ~a10~0 1) .cse1 .cse2))) [2021-10-28 09:41:10,296 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-28 09:41:10,296 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,296 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,296 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,296 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,298 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-28 09:41:10,299 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,299 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,299 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-28 09:41:10,299 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-28 09:41:10,299 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-28 09:41:10,299 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-28 09:41:10,300 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-28 09:41:10,300 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-28 09:41:10,300 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-28 09:41:10,300 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-28 09:41:10,300 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-28 09:41:10,300 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:41:10,301 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 134) no Hoare annotation was computed. [2021-10-28 09:41:10,301 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-28 09:41:10,301 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-28 09:41:10,301 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-28 09:41:10,301 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-28 09:41:10,301 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,302 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,302 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,302 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,302 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,302 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-28 09:41:10,302 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-28 09:41:10,302 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-28 09:41:10,303 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-28 09:41:10,303 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-28 09:41:10,303 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-28 09:41:10,303 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-28 09:41:10,303 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-28 09:41:10,303 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-28 09:41:10,303 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-28 09:41:10,307 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:10,308 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:41:10,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:41:10 BoogieIcfgContainer [2021-10-28 09:41:10,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:41:10,345 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:41:10,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:41:10,345 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:41:10,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:58" (3/4) ... [2021-10-28 09:41:10,349 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:41:10,376 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 09:41:10,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:41:10,378 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:41:10,379 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:41:10,508 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:41:10,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:41:10,510 INFO L168 Benchmark]: Toolchain (without parser) took 14458.93 ms. Allocated memory was 104.9 MB in the beginning and 207.6 MB in the end (delta: 102.8 MB). Free memory was 73.5 MB in the beginning and 155.6 MB in the end (delta: -82.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:10,511 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:41:10,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.44 ms. Allocated memory is still 104.9 MB. Free memory was 73.5 MB in the beginning and 64.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:10,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.79 ms. Allocated memory is still 104.9 MB. Free memory was 64.1 MB in the beginning and 56.2 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:10,512 INFO L168 Benchmark]: Boogie Preprocessor took 91.76 ms. Allocated memory is still 104.9 MB. Free memory was 56.2 MB in the beginning and 51.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:10,512 INFO L168 Benchmark]: RCFGBuilder took 1481.28 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 51.2 MB in the beginning and 55.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:10,513 INFO L168 Benchmark]: TraceAbstraction took 11885.23 ms. Allocated memory was 125.8 MB in the beginning and 207.6 MB in the end (delta: 81.8 MB). Free memory was 54.9 MB in the beginning and 170.3 MB in the end (delta: -115.4 MB). Peak memory consumption was 85.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:10,513 INFO L168 Benchmark]: Witness Printer took 164.28 ms. Allocated memory is still 207.6 MB. Free memory was 170.3 MB in the beginning and 155.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:10,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 738.44 ms. Allocated memory is still 104.9 MB. Free memory was 73.5 MB in the beginning and 64.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.79 ms. Allocated memory is still 104.9 MB. Free memory was 64.1 MB in the beginning and 56.2 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.76 ms. Allocated memory is still 104.9 MB. Free memory was 56.2 MB in the beginning and 51.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1481.28 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 51.2 MB in the beginning and 55.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11885.23 ms. Allocated memory was 125.8 MB in the beginning and 207.6 MB in the end (delta: 81.8 MB). Free memory was 54.9 MB in the beginning and 170.3 MB in the end (delta: -115.4 MB). Peak memory consumption was 85.5 MB. Max. memory is 16.1 GB. * Witness Printer took 164.28 ms. Allocated memory is still 207.6 MB. Free memory was 170.3 MB in the beginning and 155.6 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: 134]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1295 SDtfs, 1298 SDslu, 63 SDs, 0 SdLazy, 4526 SolverSat, 697 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 482 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred in iteration=11, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1251 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 133 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1050 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 3063 NumberOfCodeBlocks, 3063 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3049 ConstructedInterpolants, 0 QuantifiedInterpolants, 9436 SizeOfPredicates, 0 NumberOfNonLiveVariables, 685 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 2499/2581 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: 592]: Loop Invariant Derived loop invariant: ((((((a19 <= 9 && a10 == 4) && 14 == a4) && a12 == 0) || ((a10 == 0 && 14 == a4) && a12 == 0)) || ((((a19 <= 9 && 7 <= a19) && 14 == a4) && a10 == 2) && a12 == 0)) || (((a19 <= 9 && a10 == 3) && 14 == a4) && a12 == 0)) || (((7 <= a19 && a10 == 1) && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a19 <= 9 && a10 == 4) && 14 == a4) && a12 == 0) || ((a10 == 0 && 14 == a4) && a12 == 0)) || ((((a19 <= 9 && 7 <= a19) && 14 == a4) && a10 == 2) && a12 == 0)) || (((a19 <= 9 && a10 == 3) && 14 == a4) && a12 == 0)) || (((7 <= a19 && a10 == 1) && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 09:41:10,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6703a318-970a-4db6-99eb-80d2b692e602/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...