./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label33.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label33.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt --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 ab2f82b3a20098c3c150387b3445f37093d89f89 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:20:08,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:20:08,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:20:08,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:20:08,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:20:08,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:20:08,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:20:08,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:20:08,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:20:08,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:20:08,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:20:08,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:20:08,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:20:08,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:20:08,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:20:08,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:20:08,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:20:08,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:20:08,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:20:08,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:20:08,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:20:08,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:20:08,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:20:08,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:20:08,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:20:08,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:20:08,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:20:08,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:20:08,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:20:08,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:20:08,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:20:08,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:20:08,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:20:08,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:20:08,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:20:08,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:20:08,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:20:08,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:20:08,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:20:08,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:20:08,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:20:08,782 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:20:08,809 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:20:08,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:20:08,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:20:08,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:20:08,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:20:08,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:20:08,811 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:20:08,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:20:08,811 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:20:08,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:20:08,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:20:08,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:20:08,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:20:08,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:20:08,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:20:08,813 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:20:08,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:20:08,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:20:08,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:20:08,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:20:08,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:20:08,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:20:08,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:20:08,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:20:08,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:20:08,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:20:08,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:20:08,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:20:08,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:20:08,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:20:08,816 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_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab2f82b3a20098c3c150387b3445f37093d89f89 [2021-10-13 01:20:09,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:20:09,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:20:09,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:20:09,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:20:09,188 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:20:09,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem14_label33.c [2021-10-13 01:20:09,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/data/540694101/d8ea642d025c4935ab2438613fd7abe8/FLAGc5fb1450f [2021-10-13 01:20:09,885 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:20:09,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/sv-benchmarks/c/eca-rers2012/Problem14_label33.c [2021-10-13 01:20:09,902 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/data/540694101/d8ea642d025c4935ab2438613fd7abe8/FLAGc5fb1450f [2021-10-13 01:20:10,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/data/540694101/d8ea642d025c4935ab2438613fd7abe8 [2021-10-13 01:20:10,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:20:10,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:20:10,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:20:10,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:20:10,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:20:10,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:10,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc0bf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10, skipping insertion in model container [2021-10-13 01:20:10,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:10,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:20:10,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:20:10,483 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_e9b1fa8e-372c-4f60-8007-200a27f6936c/sv-benchmarks/c/eca-rers2012/Problem14_label33.c[5937,5950] [2021-10-13 01:20:10,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:20:10,715 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:20:10,756 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_e9b1fa8e-372c-4f60-8007-200a27f6936c/sv-benchmarks/c/eca-rers2012/Problem14_label33.c[5937,5950] [2021-10-13 01:20:10,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:20:10,870 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:20:10,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10 WrapperNode [2021-10-13 01:20:10,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:20:10,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:20:10,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:20:10,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:20:10,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:10,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:20:11,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:20:11,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:20:11,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:20:11,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:20:11,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:20:11,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:20:11,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:20:11,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (1/1) ... [2021-10-13 01:20:11,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:20:11,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:11,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:20:11,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:20:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:20:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:20:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:20:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:20:12,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:20:12,667 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 01:20:12,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:12 BoogieIcfgContainer [2021-10-13 01:20:12,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:20:12,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:20:12,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:20:12,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:20:12,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:20:10" (1/3) ... [2021-10-13 01:20:12,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c330d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:20:12, skipping insertion in model container [2021-10-13 01:20:12,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:10" (2/3) ... [2021-10-13 01:20:12,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c330d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:20:12, skipping insertion in model container [2021-10-13 01:20:12,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:12" (3/3) ... [2021-10-13 01:20:12,681 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label33.c [2021-10-13 01:20:12,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:20:12,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:20:12,774 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:20:12,783 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 01:20:12,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:20:12,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:12,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 01:20:12,823 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:12,824 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:12,824 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:12,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:12,830 INFO L82 PathProgramCache]: Analyzing trace with hash -2074400678, now seen corresponding path program 1 times [2021-10-13 01:20:12,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:12,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952792194] [2021-10-13 01:20:12,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:12,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:13,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:20:13,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:13,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952792194] [2021-10-13 01:20:13,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952792194] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:13,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:13,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:20:13,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596902606] [2021-10-13 01:20:13,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:13,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:13,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:13,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:13,223 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:14,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:14,279 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-10-13 01:20:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:14,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-10-13 01:20:14,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:14,295 INFO L225 Difference]: With dead ends: 669 [2021-10-13 01:20:14,295 INFO L226 Difference]: Without dead ends: 360 [2021-10-13 01:20:14,299 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:14,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-13 01:20:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-13 01:20:14,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2021-10-13 01:20:14,396 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 58 [2021-10-13 01:20:14,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:14,398 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2021-10-13 01:20:14,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:14,400 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2021-10-13 01:20:14,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-10-13 01:20:14,412 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:14,413 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:14,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:20:14,414 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:14,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:14,418 INFO L82 PathProgramCache]: Analyzing trace with hash 729196247, now seen corresponding path program 1 times [2021-10-13 01:20:14,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:14,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516104945] [2021-10-13 01:20:14,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:14,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:20:14,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:14,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516104945] [2021-10-13 01:20:14,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516104945] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:14,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:14,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:20:14,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523967020] [2021-10-13 01:20:14,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:14,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:14,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:14,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:14,639 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:15,392 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2021-10-13 01:20:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:15,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-10-13 01:20:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:15,398 INFO L225 Difference]: With dead ends: 1074 [2021-10-13 01:20:15,399 INFO L226 Difference]: Without dead ends: 716 [2021-10-13 01:20:15,400 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-13 01:20:15,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-13 01:20:15,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:15,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-10-13 01:20:15,461 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 133 [2021-10-13 01:20:15,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:15,465 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-10-13 01:20:15,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:15,466 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-10-13 01:20:15,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-10-13 01:20:15,471 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:15,472 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:15,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:20:15,472 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:15,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:15,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1708937139, now seen corresponding path program 1 times [2021-10-13 01:20:15,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:15,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907131303] [2021-10-13 01:20:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:15,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:20:15,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:15,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907131303] [2021-10-13 01:20:15,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907131303] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:15,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:15,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:15,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612183223] [2021-10-13 01:20:15,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:20:15,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:15,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:20:15,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:15,694 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:16,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:16,776 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2021-10-13 01:20:16,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:20:16,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-10-13 01:20:16,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:16,785 INFO L225 Difference]: With dead ends: 1964 [2021-10-13 01:20:16,785 INFO L226 Difference]: Without dead ends: 1250 [2021-10-13 01:20:16,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:16,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-13 01:20:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-10-13 01:20:16,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2361889511609288) internal successors, (1544), 1249 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2021-10-13 01:20:16,832 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 137 [2021-10-13 01:20:16,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:16,833 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2021-10-13 01:20:16,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:16,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2021-10-13 01:20:16,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-10-13 01:20:16,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:16,837 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-13 01:20:16,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 01:20:16,838 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:16,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:16,838 INFO L82 PathProgramCache]: Analyzing trace with hash -916192095, now seen corresponding path program 1 times [2021-10-13 01:20:16,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:16,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177481253] [2021-10-13 01:20:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:16,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-13 01:20:17,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:17,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177481253] [2021-10-13 01:20:17,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177481253] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:17,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:17,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:17,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354290969] [2021-10-13 01:20:17,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:20:17,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:17,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:20:17,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:17,021 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:17,774 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2021-10-13 01:20:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:20:17,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2021-10-13 01:20:17,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:17,784 INFO L225 Difference]: With dead ends: 2705 [2021-10-13 01:20:17,784 INFO L226 Difference]: Without dead ends: 1606 [2021-10-13 01:20:17,786 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:17,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-10-13 01:20:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-10-13 01:20:17,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1221183800623054) internal successors, (1801), 1605 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2021-10-13 01:20:17,830 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 217 [2021-10-13 01:20:17,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:17,831 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2021-10-13 01:20:17,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2021-10-13 01:20:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-10-13 01:20:17,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:17,838 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-10-13 01:20:17,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 01:20:17,838 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:17,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1467709680, now seen corresponding path program 1 times [2021-10-13 01:20:17,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:17,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051009651] [2021-10-13 01:20:17,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:17,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 215 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-13 01:20:18,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:18,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051009651] [2021-10-13 01:20:18,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051009651] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:18,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512614164] [2021-10-13 01:20:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:18,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:18,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:18,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:18,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 01:20:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:18,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:18,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-10-13 01:20:19,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512614164] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:19,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:19,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 01:20:19,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368657787] [2021-10-13 01:20:19,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:19,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:19,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:19,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:20:19,239 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:19,858 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2021-10-13 01:20:19,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:19,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2021-10-13 01:20:19,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:19,883 INFO L225 Difference]: With dead ends: 3388 [2021-10-13 01:20:19,884 INFO L226 Difference]: Without dead ends: 1962 [2021-10-13 01:20:19,886 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.5ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:20:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-10-13 01:20:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-10-13 01:20:19,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1320754716981132) internal successors, (2220), 1961 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:19,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2220 transitions. [2021-10-13 01:20:19,935 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2220 transitions. Word has length 344 [2021-10-13 01:20:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:19,936 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2220 transitions. [2021-10-13 01:20:19,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:19,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2220 transitions. [2021-10-13 01:20:19,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-10-13 01:20:19,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:19,943 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:19,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:20,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:20,159 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:20,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:20,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1261449754, now seen corresponding path program 1 times [2021-10-13 01:20:20,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:20,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611686787] [2021-10-13 01:20:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:20,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-13 01:20:20,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:20,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611686787] [2021-10-13 01:20:20,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611686787] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:20,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:20,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:20,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139496968] [2021-10-13 01:20:20,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:20,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:20,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:20,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:20,378 INFO L87 Difference]: Start difference. First operand 1962 states and 2220 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:20,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:20,930 INFO L93 Difference]: Finished difference Result 4100 states and 4689 transitions. [2021-10-13 01:20:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:20,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 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 348 [2021-10-13 01:20:20,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:20,942 INFO L225 Difference]: With dead ends: 4100 [2021-10-13 01:20:20,942 INFO L226 Difference]: Without dead ends: 2318 [2021-10-13 01:20:20,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:20,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-10-13 01:20:20,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2021-10-13 01:20:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.127751402675874) internal successors, (2613), 2317 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:20,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2613 transitions. [2021-10-13 01:20:20,999 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2613 transitions. Word has length 348 [2021-10-13 01:20:20,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:20,999 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2613 transitions. [2021-10-13 01:20:21,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:21,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2613 transitions. [2021-10-13 01:20:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-10-13 01:20:21,003 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:21,004 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:21,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 01:20:21,004 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:21,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:21,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1867847128, now seen corresponding path program 1 times [2021-10-13 01:20:21,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:21,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516824887] [2021-10-13 01:20:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:21,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 222 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-13 01:20:21,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:21,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516824887] [2021-10-13 01:20:21,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516824887] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:21,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200544807] [2021-10-13 01:20:21,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:21,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:21,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:21,239 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:21,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 01:20:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:21,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:21,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:22,393 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-10-13 01:20:22,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200544807] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:22,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:22,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-13 01:20:22,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519945968] [2021-10-13 01:20:22,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:22,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:22,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:22,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:20:22,404 INFO L87 Difference]: Start difference. First operand 2318 states and 2613 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:23,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:23,036 INFO L93 Difference]: Finished difference Result 4990 states and 5718 transitions. [2021-10-13 01:20:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:23,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 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 351 [2021-10-13 01:20:23,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:23,051 INFO L225 Difference]: With dead ends: 4990 [2021-10-13 01:20:23,051 INFO L226 Difference]: Without dead ends: 2852 [2021-10-13 01:20:23,055 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:20:23,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-10-13 01:20:23,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2021-10-13 01:20:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1126075570520015) internal successors, (2974), 2673 states have internal predecessors, (2974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:23,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2974 transitions. [2021-10-13 01:20:23,119 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2974 transitions. Word has length 351 [2021-10-13 01:20:23,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:23,120 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2974 transitions. [2021-10-13 01:20:23,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:23,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2974 transitions. [2021-10-13 01:20:23,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-10-13 01:20:23,123 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:23,124 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 01:20:23,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:23,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:23,338 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:23,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:23,339 INFO L82 PathProgramCache]: Analyzing trace with hash -814875796, now seen corresponding path program 1 times [2021-10-13 01:20:23,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:23,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700512133] [2021-10-13 01:20:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:23,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-10-13 01:20:23,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:23,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700512133] [2021-10-13 01:20:23,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700512133] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:23,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154101887] [2021-10-13 01:20:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:23,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:23,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:23,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:23,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 01:20:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:23,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:23,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:20:24,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154101887] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:24,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:24,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 01:20:24,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941786038] [2021-10-13 01:20:24,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:24,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:24,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:24,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:24,763 INFO L87 Difference]: Start difference. First operand 2674 states and 2974 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:25,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:25,390 INFO L93 Difference]: Finished difference Result 5702 states and 6438 transitions. [2021-10-13 01:20:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:25,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 375 [2021-10-13 01:20:25,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:25,406 INFO L225 Difference]: With dead ends: 5702 [2021-10-13 01:20:25,407 INFO L226 Difference]: Without dead ends: 3208 [2021-10-13 01:20:25,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:25,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-13 01:20:25,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-10-13 01:20:25,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.1164503682918274) internal successors, (3183), 2851 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3183 transitions. [2021-10-13 01:20:25,475 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3183 transitions. Word has length 375 [2021-10-13 01:20:25,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:25,476 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3183 transitions. [2021-10-13 01:20:25,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:25,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3183 transitions. [2021-10-13 01:20:25,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-10-13 01:20:25,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:25,480 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:25,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-13 01:20:25,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:25,696 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:25,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:25,697 INFO L82 PathProgramCache]: Analyzing trace with hash 132656657, now seen corresponding path program 1 times [2021-10-13 01:20:25,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:25,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349703885] [2021-10-13 01:20:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:25,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:20:25,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:25,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349703885] [2021-10-13 01:20:25,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349703885] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:25,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:25,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:25,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453740778] [2021-10-13 01:20:25,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:25,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:25,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:25,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:25,851 INFO L87 Difference]: Start difference. First operand 2852 states and 3183 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) [2021-10-13 01:20:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:26,472 INFO L93 Difference]: Finished difference Result 3922 states and 4448 transitions. [2021-10-13 01:20:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:26,473 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 382 [2021-10-13 01:20:26,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:26,491 INFO L225 Difference]: With dead ends: 3922 [2021-10-13 01:20:26,491 INFO L226 Difference]: Without dead ends: 3920 [2021-10-13 01:20:26,492 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:26,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-10-13 01:20:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3208. [2021-10-13 01:20:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.13844714686623) internal successors, (3651), 3207 states have internal predecessors, (3651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3651 transitions. [2021-10-13 01:20:26,564 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3651 transitions. Word has length 382 [2021-10-13 01:20:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:26,565 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3651 transitions. [2021-10-13 01:20:26,565 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) [2021-10-13 01:20:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3651 transitions. [2021-10-13 01:20:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2021-10-13 01:20:26,569 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:26,570 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 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] [2021-10-13 01:20:26,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 01:20:26,570 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:26,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1823307718, now seen corresponding path program 1 times [2021-10-13 01:20:26,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:26,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892306538] [2021-10-13 01:20:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:26,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 432 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2021-10-13 01:20:26,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:26,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892306538] [2021-10-13 01:20:26,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892306538] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:26,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:26,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:26,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079119843] [2021-10-13 01:20:26,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:20:26,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:26,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:20:26,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:26,751 INFO L87 Difference]: Start difference. First operand 3208 states and 3651 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:27,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:27,460 INFO L93 Difference]: Finished difference Result 6443 states and 7346 transitions. [2021-10-13 01:20:27,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:20:27,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 428 [2021-10-13 01:20:27,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:27,476 INFO L225 Difference]: With dead ends: 6443 [2021-10-13 01:20:27,477 INFO L226 Difference]: Without dead ends: 3386 [2021-10-13 01:20:27,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:20:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-10-13 01:20:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2021-10-13 01:20:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0994699095728095) internal successors, (3526), 3207 states have internal predecessors, (3526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3526 transitions. [2021-10-13 01:20:27,547 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3526 transitions. Word has length 428 [2021-10-13 01:20:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:27,548 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3526 transitions. [2021-10-13 01:20:27,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3526 transitions. [2021-10-13 01:20:27,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-10-13 01:20:27,553 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:27,553 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:27,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 01:20:27,554 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:27,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:27,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1357227771, now seen corresponding path program 2 times [2021-10-13 01:20:27,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:27,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6743493] [2021-10-13 01:20:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:27,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 473 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-13 01:20:27,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:27,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6743493] [2021-10-13 01:20:27,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6743493] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:27,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293196241] [2021-10-13 01:20:27,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 01:20:27,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:27,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:27,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:27,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 01:20:28,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 01:20:28,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:20:28,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 01:20:28,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:30,142 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-13 01:20:30,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293196241] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:30,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:30,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-10-13 01:20:30,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57286966] [2021-10-13 01:20:30,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:20:30,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:30,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:20:30,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:20:30,145 INFO L87 Difference]: Start difference. First operand 3208 states and 3526 transitions. Second operand has 5 states, 5 states have (on average 49.2) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:30,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:30,902 INFO L93 Difference]: Finished difference Result 6621 states and 7278 transitions. [2021-10-13 01:20:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:20:30,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.2) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 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 454 [2021-10-13 01:20:30,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:30,927 INFO L225 Difference]: With dead ends: 6621 [2021-10-13 01:20:30,927 INFO L226 Difference]: Without dead ends: 3593 [2021-10-13 01:20:30,931 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 38.8ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:20:30,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2021-10-13 01:20:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3386. [2021-10-13 01:20:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0921713441654357) internal successors, (3697), 3385 states have internal predecessors, (3697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:31,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3697 transitions. [2021-10-13 01:20:31,005 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3697 transitions. Word has length 454 [2021-10-13 01:20:31,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:31,006 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3697 transitions. [2021-10-13 01:20:31,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.2) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3697 transitions. [2021-10-13 01:20:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2021-10-13 01:20:31,011 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:31,011 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:31,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:31,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-13 01:20:31,230 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:31,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:31,230 INFO L82 PathProgramCache]: Analyzing trace with hash -252441285, now seen corresponding path program 1 times [2021-10-13 01:20:31,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:31,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867836333] [2021-10-13 01:20:31,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:31,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2021-10-13 01:20:31,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:31,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867836333] [2021-10-13 01:20:31,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867836333] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:31,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758899508] [2021-10-13 01:20:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:31,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:31,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:31,448 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:31,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 01:20:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:32,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:32,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 397 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-10-13 01:20:33,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758899508] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:33,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:33,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 01:20:33,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111561708] [2021-10-13 01:20:33,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:33,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:33,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:33,219 INFO L87 Difference]: Start difference. First operand 3386 states and 3697 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:33,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:33,727 INFO L93 Difference]: Finished difference Result 7482 states and 8228 transitions. [2021-10-13 01:20:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:33,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 459 [2021-10-13 01:20:33,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:33,748 INFO L225 Difference]: With dead ends: 7482 [2021-10-13 01:20:33,748 INFO L226 Difference]: Without dead ends: 4276 [2021-10-13 01:20:33,752 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:33,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-10-13 01:20:33,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3920. [2021-10-13 01:20:33,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0791018116866549) internal successors, (4229), 3919 states have internal predecessors, (4229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:33,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4229 transitions. [2021-10-13 01:20:33,832 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4229 transitions. Word has length 459 [2021-10-13 01:20:33,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:33,832 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 4229 transitions. [2021-10-13 01:20:33,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:33,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4229 transitions. [2021-10-13 01:20:33,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2021-10-13 01:20:33,840 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:33,840 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:33,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:34,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:34,059 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:34,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:34,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1413719166, now seen corresponding path program 1 times [2021-10-13 01:20:34,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:34,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493763886] [2021-10-13 01:20:34,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:34,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:34,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 868 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-10-13 01:20:34,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:34,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493763886] [2021-10-13 01:20:34,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493763886] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:34,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:34,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:34,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267712230] [2021-10-13 01:20:34,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:34,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:34,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:34,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:34,380 INFO L87 Difference]: Start difference. First operand 3920 states and 4229 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:34,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:34,913 INFO L93 Difference]: Finished difference Result 9262 states and 10083 transitions. [2021-10-13 01:20:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:34,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 572 [2021-10-13 01:20:34,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:34,929 INFO L225 Difference]: With dead ends: 9262 [2021-10-13 01:20:34,929 INFO L226 Difference]: Without dead ends: 5522 [2021-10-13 01:20:34,934 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:34,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2021-10-13 01:20:35,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5522. [2021-10-13 01:20:35,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0724506429994567) internal successors, (5921), 5521 states have internal predecessors, (5921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5921 transitions. [2021-10-13 01:20:35,027 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5921 transitions. Word has length 572 [2021-10-13 01:20:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:35,028 INFO L470 AbstractCegarLoop]: Abstraction has 5522 states and 5921 transitions. [2021-10-13 01:20:35,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5921 transitions. [2021-10-13 01:20:35,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2021-10-13 01:20:35,037 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:35,037 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:35,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 01:20:35,038 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:35,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:35,038 INFO L82 PathProgramCache]: Analyzing trace with hash 478828072, now seen corresponding path program 1 times [2021-10-13 01:20:35,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:35,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617255678] [2021-10-13 01:20:35,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:35,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1678 backedges. 1204 proven. 104 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-10-13 01:20:35,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:35,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617255678] [2021-10-13 01:20:35,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617255678] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:35,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421320897] [2021-10-13 01:20:35,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:35,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:35,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:35,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:35,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 01:20:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:36,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:36,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1678 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2021-10-13 01:20:37,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421320897] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:37,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:37,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 01:20:37,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359166163] [2021-10-13 01:20:37,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:37,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:37,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:37,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:20:37,445 INFO L87 Difference]: Start difference. First operand 5522 states and 5921 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:37,934 INFO L93 Difference]: Finished difference Result 7126 states and 7612 transitions. [2021-10-13 01:20:37,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:37,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 649 [2021-10-13 01:20:37,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:37,948 INFO L225 Difference]: With dead ends: 7126 [2021-10-13 01:20:37,948 INFO L226 Difference]: Without dead ends: 7124 [2021-10-13 01:20:37,950 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 24.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:20:37,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2021-10-13 01:20:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 5522. [2021-10-13 01:20:38,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0724506429994567) internal successors, (5921), 5521 states have internal predecessors, (5921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5921 transitions. [2021-10-13 01:20:38,071 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5921 transitions. Word has length 649 [2021-10-13 01:20:38,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:38,072 INFO L470 AbstractCegarLoop]: Abstraction has 5522 states and 5921 transitions. [2021-10-13 01:20:38,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:38,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5921 transitions. [2021-10-13 01:20:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2021-10-13 01:20:38,086 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:20:38,087 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:38,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:38,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:38,304 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:20:38,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:38,304 INFO L82 PathProgramCache]: Analyzing trace with hash -2000356807, now seen corresponding path program 1 times [2021-10-13 01:20:38,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:38,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568545788] [2021-10-13 01:20:38,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:38,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 1424 proven. 155 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-10-13 01:20:38,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:38,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568545788] [2021-10-13 01:20:38,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568545788] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:20:38,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924419209] [2021-10-13 01:20:38,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:38,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:20:38,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:38,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:20:38,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 01:20:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:39,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:20:39,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:20:41,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2021-10-13 01:20:41,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924419209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:41,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:20:41,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 01:20:41,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454720385] [2021-10-13 01:20:41,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:20:41,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:41,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:41,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:41,364 INFO L87 Difference]: Start difference. First operand 5522 states and 5921 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:41,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:41,826 INFO L93 Difference]: Finished difference Result 11752 states and 12597 transitions. [2021-10-13 01:20:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:41,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 812 [2021-10-13 01:20:41,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:20:41,827 INFO L225 Difference]: With dead ends: 11752 [2021-10-13 01:20:41,827 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:20:41,838 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:20:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:20:41,838 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) [2021-10-13 01:20:41,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:20:41,839 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 812 [2021-10-13 01:20:41,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:20:41,839 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:20:41,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:41,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:20:41,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:20:41,842 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:20:41,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:20:42,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-13 01:20:42,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:20:42,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:20:42,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:20:42,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:20:42,317 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 01:20:42,317 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 01:20:42,317 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 01:20:42,317 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 01:20:42,317 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 01:20:42,317 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 01:20:42,318 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 01:20:42,319 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 01:20:42,320 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 01:20:42,321 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,322 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,322 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,322 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 01:20:42,322 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 01:20:42,326 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 01:20:42,326 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 01:20:42,326 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 01:20:42,326 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 01:20:42,327 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 01:20:42,327 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 01:20:42,327 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,327 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,327 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,327 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 01:20:42,327 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 01:20:42,327 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 01:20:42,328 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 01:20:42,328 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 01:20:42,328 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 01:20:42,328 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 01:20:42,328 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 01:20:42,328 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 01:20:42,328 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,329 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,329 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,329 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 01:20:42,330 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 01:20:42,330 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 01:20:42,330 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 01:20:42,330 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 01:20:42,330 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 01:20:42,330 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 01:20:42,331 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:20:42,331 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,331 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,331 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,331 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 01:20:42,331 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 01:20:42,331 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 01:20:42,332 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 01:20:42,332 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 01:20:42,332 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 01:20:42,332 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 01:20:42,332 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 01:20:42,332 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 01:20:42,332 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,333 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,333 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,333 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 01:20:42,333 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 01:20:42,333 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 01:20:42,333 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 01:20:42,335 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 01:20:42,335 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 01:20:42,336 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 01:20:42,336 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 01:20:42,336 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,336 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,336 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,336 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 01:20:42,336 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 01:20:42,337 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 01:20:42,337 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:20:42,337 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 01:20:42,337 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2021-10-13 01:20:42,337 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 01:20:42,337 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 01:20:42,338 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 01:20:42,338 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 01:20:42,338 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,339 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,339 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,339 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 01:20:42,339 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 01:20:42,339 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 01:20:42,339 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 01:20:42,340 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 01:20:42,340 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 01:20:42,340 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 01:20:42,340 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 01:20:42,340 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,340 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,340 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,341 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 01:20:42,341 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 01:20:42,341 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 01:20:42,341 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 01:20:42,341 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 01:20:42,341 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 01:20:42,341 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 01:20:42,342 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 01:20:42,342 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,342 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,342 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,342 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 01:20:42,342 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 01:20:42,342 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 01:20:42,343 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 01:20:42,343 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 01:20:42,343 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 01:20:42,343 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 01:20:42,343 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 01:20:42,344 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,344 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,344 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,344 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 01:20:42,344 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 01:20:42,344 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 01:20:42,345 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 01:20:42,345 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 01:20:42,345 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 01:20:42,345 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 01:20:42,345 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 01:20:42,345 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,345 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,346 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,346 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 01:20:42,354 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 01:20:42,354 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 01:20:42,354 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 01:20:42,354 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 01:20:42,354 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 01:20:42,355 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 01:20:42,355 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 01:20:42,355 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,355 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,355 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 01:20:42,355 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 01:20:42,356 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 01:20:42,356 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 01:20:42,356 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 01:20:42,356 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 01:20:42,356 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 01:20:42,357 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 01:20:42,357 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,357 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,357 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 01:20:42,357 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:20:42,357 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 01:20:42,357 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 01:20:42,358 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 01:20:42,358 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 01:20:42,358 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 01:20:42,358 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,358 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,359 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse1 (= ~a24~0 1))) (or (and (<= (+ ~a12~0 43) 0) (<= ~a21~0 7) .cse0) (and .cse1 (< 80 ~a12~0)) (and (<= ~a21~0 9) .cse1) (and (<= 7 ~a15~0) .cse1 (<= ~a15~0 8)) (and .cse1 .cse0) (and (<= ~a12~0 11) .cse1))) [2021-10-13 01:20:42,359 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 01:20:42,359 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 01:20:42,359 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 01:20:42,359 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 01:20:42,359 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 01:20:42,360 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 01:20:42,360 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 01:20:42,360 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 01:20:42,360 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,360 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,360 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 01:20:42,360 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 01:20:42,361 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 01:20:42,361 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 01:20:42,361 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 01:20:42,361 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 01:20:42,361 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 01:20:42,361 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 01:20:42,361 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,362 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,362 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:20:42,362 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 01:20:42,362 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 01:20:42,362 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 01:20:42,362 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 01:20:42,362 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 01:20:42,363 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 01:20:42,363 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,363 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,363 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 01:20:42,363 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,363 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 01:20:42,364 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse1 (= ~a24~0 1))) (or (and (<= (+ ~a12~0 43) 0) (<= ~a21~0 7) .cse0) (and .cse1 (< 80 ~a12~0)) (and (<= ~a21~0 9) .cse1) (and (<= 7 ~a15~0) .cse1 (<= ~a15~0 8)) (and .cse1 .cse0) (and (<= ~a12~0 11) .cse1))) [2021-10-13 01:20:42,364 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 01:20:42,364 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 01:20:42,364 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 01:20:42,364 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 01:20:42,364 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 01:20:42,364 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 01:20:42,365 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 01:20:42,365 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 01:20:42,365 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 01:20:42,365 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,365 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,365 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 01:20:42,365 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 01:20:42,366 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 01:20:42,366 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 01:20:42,366 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 01:20:42,370 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:20:42,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:20:42 BoogieIcfgContainer [2021-10-13 01:20:42,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:20:42,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:20:42,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:20:42,393 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:20:42,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:12" (3/4) ... [2021-10-13 01:20:42,396 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:20:42,427 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 01:20:42,429 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 01:20:42,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:20:42,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:20:42,568 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:20:42,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:20:42,570 INFO L168 Benchmark]: Toolchain (without parser) took 32414.04 ms. Allocated memory was 90.2 MB in the beginning and 415.2 MB in the end (delta: 325.1 MB). Free memory was 57.6 MB in the beginning and 222.6 MB in the end (delta: -165.0 MB). Peak memory consumption was 160.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:42,570 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 46.6 MB in the beginning and 46.5 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:20:42,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.87 ms. Allocated memory is still 90.2 MB. Free memory was 57.4 MB in the beginning and 45.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:42,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 167.30 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 45.0 MB in the beginning and 80.5 MB in the end (delta: -35.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:42,571 INFO L168 Benchmark]: Boogie Preprocessor took 123.43 ms. Allocated memory is still 109.1 MB. Free memory was 80.5 MB in the beginning and 75.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:42,572 INFO L168 Benchmark]: RCFGBuilder took 1506.98 ms. Allocated memory is still 109.1 MB. Free memory was 74.9 MB in the beginning and 44.7 MB in the end (delta: 30.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:42,572 INFO L168 Benchmark]: TraceAbstraction took 29719.39 ms. Allocated memory was 109.1 MB in the beginning and 415.2 MB in the end (delta: 306.2 MB). Free memory was 43.8 MB in the beginning and 241.5 MB in the end (delta: -197.7 MB). Peak memory consumption was 242.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:42,572 INFO L168 Benchmark]: Witness Printer took 175.91 ms. Allocated memory is still 415.2 MB. Free memory was 241.5 MB in the beginning and 222.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:20:42,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 46.6 MB in the beginning and 46.5 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 712.87 ms. Allocated memory is still 90.2 MB. Free memory was 57.4 MB in the beginning and 45.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 167.30 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 45.0 MB in the beginning and 80.5 MB in the end (delta: -35.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 123.43 ms. Allocated memory is still 109.1 MB. Free memory was 80.5 MB in the beginning and 75.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1506.98 ms. Allocated memory is still 109.1 MB. Free memory was 74.9 MB in the beginning and 44.7 MB in the end (delta: 30.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29719.39 ms. Allocated memory was 109.1 MB in the beginning and 415.2 MB in the end (delta: 306.2 MB). Free memory was 43.8 MB in the beginning and 241.5 MB in the end (delta: -197.7 MB). Peak memory consumption was 242.3 MB. Max. memory is 16.1 GB. * Witness Printer took 175.91 ms. Allocated memory is still 415.2 MB. Free memory was 241.5 MB in the beginning and 222.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 188]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29598.0ms, OverallIterations: 15, TraceHistogramMax: 7, EmptinessCheckTime: 103.6ms, AutomataDifference: 10478.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 273.9ms, InitialAbstractionConstructionTime: 21.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1345 SDtfs, 2423 SDslu, 85 SDs, 0 SdLazy, 7834 SolverSat, 1157 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7474.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3488 GetRequests, 3447 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 174.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5522occurred in iteration=13, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 969.3ms AutomataMinimizationTime, 15 MinimizatonAttempts, 3589 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 81 NumberOfFragments, 103 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3680 FormulaSimplificationTreeSizeReduction, 128.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 196 FormulaSimplificationTreeSizeReductionInter, 137.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 408.9ms SsaConstructionTime, 1466.7ms SatisfiabilityAnalysisTime, 11025.6ms InterpolantComputationTime, 9163 NumberOfCodeBlocks, 9163 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 9141 ConstructedInterpolants, 0 QuantifiedInterpolants, 30823 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4559 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 15063/16172 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: 30]: Loop Invariant Derived loop invariant: ((((((a12 + 43 <= 0 && a21 <= 7) && a15 <= 5) || (a24 == 1 && 80 < a12)) || (a21 <= 9 && a24 == 1)) || ((7 <= a15 && a24 == 1) && a15 <= 8)) || (a24 == 1 && a15 <= 5)) || (a12 <= 11 && a24 == 1) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((a12 + 43 <= 0 && a21 <= 7) && a15 <= 5) || (a24 == 1 && 80 < a12)) || (a21 <= 9 && a24 == 1)) || ((7 <= a15 && a24 == 1) && a15 <= 8)) || (a24 == 1 && a15 <= 5)) || (a12 <= 11 && a24 == 1) RESULT: Ultimate proved your program to be correct! [2021-10-13 01:20:42,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9b1fa8e-372c-4f60-8007-200a27f6936c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...