./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 940f009ebef4e6f688860c69fe317a06471b0d96e24220f1e9007ff15bc7124f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:41:11,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:41:11,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:41:11,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:41:11,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:41:11,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:41:11,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:41:11,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:41:11,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:41:11,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:41:11,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:41:11,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:41:11,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:41:11,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:41:11,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:41:11,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:41:12,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:41:12,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:41:12,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:41:12,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:41:12,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:41:12,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:41:12,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:41:12,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:41:12,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:41:12,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:41:12,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:41:12,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:41:12,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:41:12,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:41:12,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:41:12,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:41:12,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:41:12,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:41:12,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:41:12,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:41:12,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:41:12,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:41:12,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:41:12,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:41:12,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:41:12,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:41:12,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:41:12,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:41:12,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:41:12,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:41:12,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:41:12,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:41:12,129 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:41:12,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:41:12,130 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:41:12,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:41:12,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:41:12,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:41:12,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:41:12,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:41:12,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:41:12,133 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:41:12,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:41:12,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:41:12,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:41:12,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:41:12,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:41:12,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:41:12,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:41:12,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:41:12,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:41:12,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:41:12,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:41:12,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:41:12,137 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:41:12,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:41:12,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:41:12,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:41:12,140 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_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 940f009ebef4e6f688860c69fe317a06471b0d96e24220f1e9007ff15bc7124f [2021-10-28 08:41:12,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:41:12,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:41:12,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:41:12,486 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:41:12,487 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:41:12,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/eca-rers2012/Problem03_label02.c [2021-10-28 08:41:12,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/data/9c21d6f10/1c6761364d6b4314936a20368a887dbf/FLAGe0715e7c8 [2021-10-28 08:41:13,347 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:41:13,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/sv-benchmarks/c/eca-rers2012/Problem03_label02.c [2021-10-28 08:41:13,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/data/9c21d6f10/1c6761364d6b4314936a20368a887dbf/FLAGe0715e7c8 [2021-10-28 08:41:13,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/data/9c21d6f10/1c6761364d6b4314936a20368a887dbf [2021-10-28 08:41:13,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:41:13,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:41:13,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:41:13,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:41:13,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:41:13,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:41:13" (1/1) ... [2021-10-28 08:41:13,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33df657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:13, skipping insertion in model container [2021-10-28 08:41:13,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:41:13" (1/1) ... [2021-10-28 08:41:13,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:41:13,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:41:14,245 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_16976e82-8f70-45c3-8a14-697f3e06461a/sv-benchmarks/c/eca-rers2012/Problem03_label02.c[61770,61783] [2021-10-28 08:41:14,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:41:14,292 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:41:14,603 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_16976e82-8f70-45c3-8a14-697f3e06461a/sv-benchmarks/c/eca-rers2012/Problem03_label02.c[61770,61783] [2021-10-28 08:41:14,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:41:14,631 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:41:14,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14 WrapperNode [2021-10-28 08:41:14,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:41:14,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:41:14,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:41:14,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:41:14,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:14,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:14,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:41:14,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:41:14,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:41:14,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:41:14,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:14,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:14,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:14,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:14,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:14,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:14,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:15,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:41:15,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:41:15,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:41:15,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:41:15,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (1/1) ... [2021-10-28 08:41:15,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:41:15,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:15,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:41:15,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:41:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:41:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:41:17,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:41:17,532 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 08:41:17,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:17 BoogieIcfgContainer [2021-10-28 08:41:17,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:41:17,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:41:17,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:41:17,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:41:17,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:41:13" (1/3) ... [2021-10-28 08:41:17,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4289ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:41:17, skipping insertion in model container [2021-10-28 08:41:17,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:41:14" (2/3) ... [2021-10-28 08:41:17,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4289ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:41:17, skipping insertion in model container [2021-10-28 08:41:17,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:17" (3/3) ... [2021-10-28 08:41:17,550 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label02.c [2021-10-28 08:41:17,561 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:41:17,561 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:41:17,623 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:41:17,631 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:41:17,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:41:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-10-28 08:41:17,694 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:17,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:17,696 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:17,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:17,703 INFO L85 PathProgramCache]: Analyzing trace with hash -635106638, now seen corresponding path program 1 times [2021-10-28 08:41:17,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:17,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264444145] [2021-10-28 08:41:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:17,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:18,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:18,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264444145] [2021-10-28 08:41:18,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264444145] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:18,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:18,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:41:18,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304319238] [2021-10-28 08:41:18,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:18,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:18,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:18,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:18,663 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:20,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:20,290 INFO L93 Difference]: Finished difference Result 855 states and 1496 transitions. [2021-10-28 08:41:20,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:20,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 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 204 [2021-10-28 08:41:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:20,316 INFO L225 Difference]: With dead ends: 855 [2021-10-28 08:41:20,317 INFO L226 Difference]: Without dead ends: 460 [2021-10-28 08:41:20,323 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:20,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-10-28 08:41:20,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2021-10-28 08:41:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.5502183406113537) internal successors, (710), 458 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 710 transitions. [2021-10-28 08:41:20,419 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 710 transitions. Word has length 204 [2021-10-28 08:41:20,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:20,428 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 710 transitions. [2021-10-28 08:41:20,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 710 transitions. [2021-10-28 08:41:20,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-10-28 08:41:20,439 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:20,439 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:20,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:41:20,440 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:20,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:20,441 INFO L85 PathProgramCache]: Analyzing trace with hash 237984642, now seen corresponding path program 1 times [2021-10-28 08:41:20,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:20,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633515473] [2021-10-28 08:41:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:20,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:20,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:20,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633515473] [2021-10-28 08:41:20,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633515473] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:20,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:20,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:41:20,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314204118] [2021-10-28 08:41:20,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:20,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:20,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:20,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:20,581 INFO L87 Difference]: Start difference. First operand 459 states and 710 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:21,539 INFO L93 Difference]: Finished difference Result 1340 states and 2081 transitions. [2021-10-28 08:41:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:21,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2021-10-28 08:41:21,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:21,546 INFO L225 Difference]: With dead ends: 1340 [2021-10-28 08:41:21,546 INFO L226 Difference]: Without dead ends: 883 [2021-10-28 08:41:21,549 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-10-28 08:41:21,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 880. [2021-10-28 08:41:21,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 1.4675767918088738) internal successors, (1290), 879 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:21,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1290 transitions. [2021-10-28 08:41:21,614 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1290 transitions. Word has length 209 [2021-10-28 08:41:21,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:21,615 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 1290 transitions. [2021-10-28 08:41:21,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:21,615 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1290 transitions. [2021-10-28 08:41:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-10-28 08:41:21,624 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:21,625 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:21,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:41:21,626 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:21,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash 317780433, now seen corresponding path program 1 times [2021-10-28 08:41:21,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:21,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566335457] [2021-10-28 08:41:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:21,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:21,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:21,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566335457] [2021-10-28 08:41:21,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566335457] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:21,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:21,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:41:21,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142794094] [2021-10-28 08:41:21,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:21,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:21,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:21,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:21,763 INFO L87 Difference]: Start difference. First operand 880 states and 1290 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:22,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:22,740 INFO L93 Difference]: Finished difference Result 2594 states and 3819 transitions. [2021-10-28 08:41:22,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:22,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2021-10-28 08:41:22,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:22,752 INFO L225 Difference]: With dead ends: 2594 [2021-10-28 08:41:22,753 INFO L226 Difference]: Without dead ends: 1716 [2021-10-28 08:41:22,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:22,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2021-10-28 08:41:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1696. [2021-10-28 08:41:22,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.4377581120943952) internal successors, (2437), 1695 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:22,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2437 transitions. [2021-10-28 08:41:22,812 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2437 transitions. Word has length 212 [2021-10-28 08:41:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:22,812 INFO L470 AbstractCegarLoop]: Abstraction has 1696 states and 2437 transitions. [2021-10-28 08:41:22,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2437 transitions. [2021-10-28 08:41:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-10-28 08:41:22,820 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:22,820 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:22,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:41:22,821 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:22,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:22,825 INFO L85 PathProgramCache]: Analyzing trace with hash -73934984, now seen corresponding path program 1 times [2021-10-28 08:41:22,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:22,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767129549] [2021-10-28 08:41:22,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:22,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:22,931 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:41:22,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:22,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767129549] [2021-10-28 08:41:22,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767129549] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:22,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:22,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:22,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531589540] [2021-10-28 08:41:22,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:22,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:22,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:22,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:22,941 INFO L87 Difference]: Start difference. First operand 1696 states and 2437 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:23,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:23,924 INFO L93 Difference]: Finished difference Result 5017 states and 7218 transitions. [2021-10-28 08:41:23,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:23,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 224 [2021-10-28 08:41:23,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:23,944 INFO L225 Difference]: With dead ends: 5017 [2021-10-28 08:41:23,944 INFO L226 Difference]: Without dead ends: 3323 [2021-10-28 08:41:23,948 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:23,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states. [2021-10-28 08:41:24,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3320. [2021-10-28 08:41:24,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 1.2847243145525762) internal successors, (4264), 3319 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:24,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4264 transitions. [2021-10-28 08:41:24,041 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4264 transitions. Word has length 224 [2021-10-28 08:41:24,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:24,042 INFO L470 AbstractCegarLoop]: Abstraction has 3320 states and 4264 transitions. [2021-10-28 08:41:24,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:24,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4264 transitions. [2021-10-28 08:41:24,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-10-28 08:41:24,053 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:24,053 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:24,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:41:24,054 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:24,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:24,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1912274208, now seen corresponding path program 1 times [2021-10-28 08:41:24,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:24,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651690689] [2021-10-28 08:41:24,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:24,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:41:24,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:24,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651690689] [2021-10-28 08:41:24,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651690689] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:24,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:24,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:24,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582966545] [2021-10-28 08:41:24,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:24,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:24,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:24,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:24,241 INFO L87 Difference]: Start difference. First operand 3320 states and 4264 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:25,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:25,310 INFO L93 Difference]: Finished difference Result 9900 states and 12717 transitions. [2021-10-28 08:41:25,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:25,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 239 [2021-10-28 08:41:25,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:25,349 INFO L225 Difference]: With dead ends: 9900 [2021-10-28 08:41:25,350 INFO L226 Difference]: Without dead ends: 6582 [2021-10-28 08:41:25,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:25,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2021-10-28 08:41:25,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 6577. [2021-10-28 08:41:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6577 states, 6576 states have (on average 1.2244525547445255) internal successors, (8052), 6576 states have internal predecessors, (8052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6577 states to 6577 states and 8052 transitions. [2021-10-28 08:41:25,607 INFO L78 Accepts]: Start accepts. Automaton has 6577 states and 8052 transitions. Word has length 239 [2021-10-28 08:41:25,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:25,610 INFO L470 AbstractCegarLoop]: Abstraction has 6577 states and 8052 transitions. [2021-10-28 08:41:25,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6577 states and 8052 transitions. [2021-10-28 08:41:25,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-10-28 08:41:25,627 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:25,627 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:25,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:41:25,628 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:25,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:25,629 INFO L85 PathProgramCache]: Analyzing trace with hash -177417023, now seen corresponding path program 1 times [2021-10-28 08:41:25,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:25,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959129905] [2021-10-28 08:41:25,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:25,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:25,762 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:25,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:25,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959129905] [2021-10-28 08:41:25,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959129905] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:25,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:25,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:41:25,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821230787] [2021-10-28 08:41:25,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:25,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:25,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:25,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:25,772 INFO L87 Difference]: Start difference. First operand 6577 states and 8052 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 2 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) [2021-10-28 08:41:26,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:26,823 INFO L93 Difference]: Finished difference Result 16027 states and 19627 transitions. [2021-10-28 08:41:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:26,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 2 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 245 [2021-10-28 08:41:26,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:26,876 INFO L225 Difference]: With dead ends: 16027 [2021-10-28 08:41:26,876 INFO L226 Difference]: Without dead ends: 9452 [2021-10-28 08:41:26,885 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:26,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2021-10-28 08:41:27,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 9439. [2021-10-28 08:41:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9438 states have (on average 1.2134986225895317) internal successors, (11453), 9438 states have internal predecessors, (11453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:27,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 11453 transitions. [2021-10-28 08:41:27,130 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 11453 transitions. Word has length 245 [2021-10-28 08:41:27,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:27,131 INFO L470 AbstractCegarLoop]: Abstraction has 9439 states and 11453 transitions. [2021-10-28 08:41:27,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 2 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) [2021-10-28 08:41:27,131 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 11453 transitions. [2021-10-28 08:41:27,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-10-28 08:41:27,184 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:27,184 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:27,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:41:27,185 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:27,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:27,186 INFO L85 PathProgramCache]: Analyzing trace with hash -285299978, now seen corresponding path program 1 times [2021-10-28 08:41:27,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:27,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314579301] [2021-10-28 08:41:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:27,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:27,330 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:27,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:27,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314579301] [2021-10-28 08:41:27,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314579301] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:41:27,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789792734] [2021-10-28 08:41:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:27,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:41:27,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:27,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:41:27,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:41:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:27,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:27,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:41:28,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789792734] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:28,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:41:28,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 08:41:28,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316157880] [2021-10-28 08:41:28,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:28,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:28,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:28,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:41:28,535 INFO L87 Difference]: Start difference. First operand 9439 states and 11453 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:29,538 INFO L93 Difference]: Finished difference Result 18879 states and 22909 transitions. [2021-10-28 08:41:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:29,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 252 [2021-10-28 08:41:29,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:29,598 INFO L225 Difference]: With dead ends: 18879 [2021-10-28 08:41:29,599 INFO L226 Difference]: Without dead ends: 9442 [2021-10-28 08:41:29,611 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:41:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9442 states. [2021-10-28 08:41:29,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9442 to 9439. [2021-10-28 08:41:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9438 states have (on average 1.205657978385251) internal successors, (11379), 9438 states have internal predecessors, (11379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 11379 transitions. [2021-10-28 08:41:29,872 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 11379 transitions. Word has length 252 [2021-10-28 08:41:29,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:29,873 INFO L470 AbstractCegarLoop]: Abstraction has 9439 states and 11379 transitions. [2021-10-28 08:41:29,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:29,874 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 11379 transitions. [2021-10-28 08:41:29,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-10-28 08:41:29,904 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:29,904 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:29,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 08:41:30,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:41:30,130 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:30,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:30,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2021713360, now seen corresponding path program 1 times [2021-10-28 08:41:30,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:30,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604168837] [2021-10-28 08:41:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:30,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:30,271 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-28 08:41:30,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:30,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604168837] [2021-10-28 08:41:30,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604168837] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:30,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:30,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:30,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437571140] [2021-10-28 08:41:30,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:30,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:30,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:30,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:30,275 INFO L87 Difference]: Start difference. First operand 9439 states and 11379 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:31,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:31,420 INFO L93 Difference]: Finished difference Result 22141 states and 26799 transitions. [2021-10-28 08:41:31,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:31,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 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 306 [2021-10-28 08:41:31,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:31,457 INFO L225 Difference]: With dead ends: 22141 [2021-10-28 08:41:31,457 INFO L226 Difference]: Without dead ends: 12704 [2021-10-28 08:41:31,470 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12704 states. [2021-10-28 08:41:31,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12704 to 11873. [2021-10-28 08:41:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11873 states, 11872 states have (on average 1.1861522911051212) internal successors, (14082), 11872 states have internal predecessors, (14082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:31,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11873 states to 11873 states and 14082 transitions. [2021-10-28 08:41:31,789 INFO L78 Accepts]: Start accepts. Automaton has 11873 states and 14082 transitions. Word has length 306 [2021-10-28 08:41:31,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:31,790 INFO L470 AbstractCegarLoop]: Abstraction has 11873 states and 14082 transitions. [2021-10-28 08:41:31,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:31,790 INFO L276 IsEmpty]: Start isEmpty. Operand 11873 states and 14082 transitions. [2021-10-28 08:41:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-10-28 08:41:31,821 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:31,822 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:31,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:41:31,822 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:31,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:31,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1904547740, now seen corresponding path program 1 times [2021-10-28 08:41:31,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:31,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076615093] [2021-10-28 08:41:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:31,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 94 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-28 08:41:32,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:32,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076615093] [2021-10-28 08:41:32,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076615093] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:41:32,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305659265] [2021-10-28 08:41:32,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:32,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:41:32,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:32,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:41:32,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:41:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:32,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:41:32,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:41:33,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305659265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:33,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:41:33,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 08:41:33,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874217170] [2021-10-28 08:41:33,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:33,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:33,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:33,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:41:33,192 INFO L87 Difference]: Start difference. First operand 11873 states and 14082 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:34,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:34,178 INFO L93 Difference]: Finished difference Result 28416 states and 34174 transitions. [2021-10-28 08:41:34,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:34,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 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 313 [2021-10-28 08:41:34,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:34,215 INFO L225 Difference]: With dead ends: 28416 [2021-10-28 08:41:34,215 INFO L226 Difference]: Without dead ends: 16748 [2021-10-28 08:41:34,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:41:34,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16748 states. [2021-10-28 08:41:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16748 to 16339. [2021-10-28 08:41:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16339 states, 16338 states have (on average 1.1618925205043458) internal successors, (18983), 16338 states have internal predecessors, (18983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16339 states to 16339 states and 18983 transitions. [2021-10-28 08:41:34,649 INFO L78 Accepts]: Start accepts. Automaton has 16339 states and 18983 transitions. Word has length 313 [2021-10-28 08:41:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:34,649 INFO L470 AbstractCegarLoop]: Abstraction has 16339 states and 18983 transitions. [2021-10-28 08:41:34,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:34,650 INFO L276 IsEmpty]: Start isEmpty. Operand 16339 states and 18983 transitions. [2021-10-28 08:41:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-10-28 08:41:34,694 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:34,694 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:34,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:34,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:41:34,910 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:34,911 INFO L85 PathProgramCache]: Analyzing trace with hash 450065035, now seen corresponding path program 1 times [2021-10-28 08:41:34,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:34,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556652668] [2021-10-28 08:41:34,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:34,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-10-28 08:41:35,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:35,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556652668] [2021-10-28 08:41:35,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556652668] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:35,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:35,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:35,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449798954] [2021-10-28 08:41:35,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:41:35,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:35,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:41:35,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:35,141 INFO L87 Difference]: Start difference. First operand 16339 states and 18983 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:36,652 INFO L93 Difference]: Finished difference Result 32298 states and 37578 transitions. [2021-10-28 08:41:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:41:36,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 322 [2021-10-28 08:41:36,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:36,688 INFO L225 Difference]: With dead ends: 32298 [2021-10-28 08:41:36,688 INFO L226 Difference]: Without dead ends: 16164 [2021-10-28 08:41:36,706 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:36,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16164 states. [2021-10-28 08:41:37,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16164 to 15119. [2021-10-28 08:41:37,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15119 states, 15118 states have (on average 1.1647704722846937) internal successors, (17609), 15118 states have internal predecessors, (17609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15119 states to 15119 states and 17609 transitions. [2021-10-28 08:41:37,063 INFO L78 Accepts]: Start accepts. Automaton has 15119 states and 17609 transitions. Word has length 322 [2021-10-28 08:41:37,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:37,064 INFO L470 AbstractCegarLoop]: Abstraction has 15119 states and 17609 transitions. [2021-10-28 08:41:37,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 15119 states and 17609 transitions. [2021-10-28 08:41:37,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-10-28 08:41:37,096 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:37,097 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:37,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 08:41:37,097 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:37,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:37,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1147355766, now seen corresponding path program 1 times [2021-10-28 08:41:37,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:37,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976687450] [2021-10-28 08:41:37,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:37,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 93 proven. 6 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-28 08:41:37,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:37,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976687450] [2021-10-28 08:41:37,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976687450] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:41:37,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873940509] [2021-10-28 08:41:37,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:37,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:41:37,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:41:37,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:41:37,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 08:41:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:37,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:41:37,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:41:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 180 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:41:38,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873940509] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:41:38,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:41:38,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2021-10-28 08:41:38,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799134422] [2021-10-28 08:41:38,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:41:38,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:38,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:41:38,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:41:38,700 INFO L87 Difference]: Start difference. First operand 15119 states and 17609 transitions. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:43,544 INFO L93 Difference]: Finished difference Result 66146 states and 76828 transitions. [2021-10-28 08:41:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:41:43,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 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 329 [2021-10-28 08:41:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:43,646 INFO L225 Difference]: With dead ends: 66146 [2021-10-28 08:41:43,647 INFO L226 Difference]: Without dead ends: 51230 [2021-10-28 08:41:43,663 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:41:43,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51230 states. [2021-10-28 08:41:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51230 to 50785. [2021-10-28 08:41:44,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50785 states, 50784 states have (on average 1.1255316635160681) internal successors, (57159), 50784 states have internal predecessors, (57159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50785 states to 50785 states and 57159 transitions. [2021-10-28 08:41:44,867 INFO L78 Accepts]: Start accepts. Automaton has 50785 states and 57159 transitions. Word has length 329 [2021-10-28 08:41:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:44,867 INFO L470 AbstractCegarLoop]: Abstraction has 50785 states and 57159 transitions. [2021-10-28 08:41:44,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 50785 states and 57159 transitions. [2021-10-28 08:41:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-10-28 08:41:44,914 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:44,914 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:44,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:41:45,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 08:41:45,131 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 898638909, now seen corresponding path program 1 times [2021-10-28 08:41:45,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:45,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817953789] [2021-10-28 08:41:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:45,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:45,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:45,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817953789] [2021-10-28 08:41:45,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817953789] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:45,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:45,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:41:45,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217593615] [2021-10-28 08:41:45,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:45,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:45,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:45,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:45,507 INFO L87 Difference]: Start difference. First operand 50785 states and 57159 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:47,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:47,011 INFO L93 Difference]: Finished difference Result 107675 states and 121085 transitions. [2021-10-28 08:41:47,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:47,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-10-28 08:41:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:47,304 INFO L225 Difference]: With dead ends: 107675 [2021-10-28 08:41:47,305 INFO L226 Difference]: Without dead ends: 57095 [2021-10-28 08:41:47,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:47,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57095 states. [2021-10-28 08:41:48,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57095 to 57093. [2021-10-28 08:41:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57093 states, 57092 states have (on average 1.123047011840538) internal successors, (64117), 57092 states have internal predecessors, (64117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:48,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57093 states to 57093 states and 64117 transitions. [2021-10-28 08:41:48,521 INFO L78 Accepts]: Start accepts. Automaton has 57093 states and 64117 transitions. Word has length 330 [2021-10-28 08:41:48,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:48,522 INFO L470 AbstractCegarLoop]: Abstraction has 57093 states and 64117 transitions. [2021-10-28 08:41:48,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 2 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand 57093 states and 64117 transitions. [2021-10-28 08:41:48,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-10-28 08:41:48,588 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:48,589 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:48,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 08:41:48,590 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:48,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:48,591 INFO L85 PathProgramCache]: Analyzing trace with hash -793585368, now seen corresponding path program 1 times [2021-10-28 08:41:48,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:48,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104385859] [2021-10-28 08:41:48,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:48,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:41:48,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:48,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104385859] [2021-10-28 08:41:48,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104385859] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:48,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:48,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:48,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423926329] [2021-10-28 08:41:48,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:41:48,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:48,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:41:48,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:48,875 INFO L87 Difference]: Start difference. First operand 57093 states and 64117 transitions. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:50,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:50,507 INFO L93 Difference]: Finished difference Result 124767 states and 139463 transitions. [2021-10-28 08:41:50,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:41:50,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 337 [2021-10-28 08:41:50,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:50,826 INFO L225 Difference]: With dead ends: 124767 [2021-10-28 08:41:50,826 INFO L226 Difference]: Without dead ends: 67879 [2021-10-28 08:41:50,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67879 states. [2021-10-28 08:41:51,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67879 to 60755. [2021-10-28 08:41:51,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60755 states, 60754 states have (on average 1.1116634295684236) internal successors, (67538), 60754 states have internal predecessors, (67538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:51,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60755 states to 60755 states and 67538 transitions. [2021-10-28 08:41:51,989 INFO L78 Accepts]: Start accepts. Automaton has 60755 states and 67538 transitions. Word has length 337 [2021-10-28 08:41:51,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:51,990 INFO L470 AbstractCegarLoop]: Abstraction has 60755 states and 67538 transitions. [2021-10-28 08:41:51,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:51,990 INFO L276 IsEmpty]: Start isEmpty. Operand 60755 states and 67538 transitions. [2021-10-28 08:41:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-10-28 08:41:52,056 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:52,057 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:52,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 08:41:52,058 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:52,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1387466489, now seen corresponding path program 1 times [2021-10-28 08:41:52,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:52,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925150207] [2021-10-28 08:41:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:52,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:41:52,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:52,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925150207] [2021-10-28 08:41:52,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925150207] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:52,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:52,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:52,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826524448] [2021-10-28 08:41:52,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:41:52,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:52,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:41:52,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:52,354 INFO L87 Difference]: Start difference. First operand 60755 states and 67538 transitions. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:53,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:53,622 INFO L93 Difference]: Finished difference Result 110441 states and 123077 transitions. [2021-10-28 08:41:53,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:41:53,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 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 345 [2021-10-28 08:41:53,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:53,936 INFO L225 Difference]: With dead ends: 110441 [2021-10-28 08:41:53,936 INFO L226 Difference]: Without dead ends: 45222 [2021-10-28 08:41:53,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:54,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45222 states. [2021-10-28 08:41:54,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45222 to 38301. [2021-10-28 08:41:54,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38301 states, 38300 states have (on average 1.0746475195822454) internal successors, (41159), 38300 states have internal predecessors, (41159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38301 states to 38301 states and 41159 transitions. [2021-10-28 08:41:54,739 INFO L78 Accepts]: Start accepts. Automaton has 38301 states and 41159 transitions. Word has length 345 [2021-10-28 08:41:54,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:54,757 INFO L470 AbstractCegarLoop]: Abstraction has 38301 states and 41159 transitions. [2021-10-28 08:41:54,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 38301 states and 41159 transitions. [2021-10-28 08:41:54,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2021-10-28 08:41:54,801 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:54,802 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:54,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 08:41:54,803 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:54,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:54,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2135097864, now seen corresponding path program 1 times [2021-10-28 08:41:54,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:54,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040186426] [2021-10-28 08:41:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:54,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2021-10-28 08:41:54,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:54,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040186426] [2021-10-28 08:41:55,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040186426] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:55,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:55,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:41:55,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49399597] [2021-10-28 08:41:55,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:41:55,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:55,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:41:55,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:55,002 INFO L87 Difference]: Start difference. First operand 38301 states and 41159 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:55,872 INFO L93 Difference]: Finished difference Result 83538 states and 90031 transitions. [2021-10-28 08:41:55,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:41:55,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 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 422 [2021-10-28 08:41:55,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:55,914 INFO L225 Difference]: With dead ends: 83538 [2021-10-28 08:41:55,915 INFO L226 Difference]: Without dead ends: 45442 [2021-10-28 08:41:55,933 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:41:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45442 states. [2021-10-28 08:41:56,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45442 to 43989. [2021-10-28 08:41:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43989 states, 43988 states have (on average 1.0796580885696099) internal successors, (47492), 43988 states have internal predecessors, (47492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:56,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43989 states to 43989 states and 47492 transitions. [2021-10-28 08:41:56,669 INFO L78 Accepts]: Start accepts. Automaton has 43989 states and 47492 transitions. Word has length 422 [2021-10-28 08:41:56,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:56,670 INFO L470 AbstractCegarLoop]: Abstraction has 43989 states and 47492 transitions. [2021-10-28 08:41:56,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:56,670 INFO L276 IsEmpty]: Start isEmpty. Operand 43989 states and 47492 transitions. [2021-10-28 08:41:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2021-10-28 08:41:56,690 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:56,690 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:56,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 08:41:56,691 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:56,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:56,692 INFO L85 PathProgramCache]: Analyzing trace with hash -364376088, now seen corresponding path program 1 times [2021-10-28 08:41:56,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:56,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387771407] [2021-10-28 08:41:56,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:56,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:57,212 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-10-28 08:41:57,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:57,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387771407] [2021-10-28 08:41:57,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387771407] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:57,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:57,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:57,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850952428] [2021-10-28 08:41:57,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:41:57,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:57,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:41:57,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:57,217 INFO L87 Difference]: Start difference. First operand 43989 states and 47492 transitions. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:41:58,629 INFO L93 Difference]: Finished difference Result 94507 states and 102303 transitions. [2021-10-28 08:41:58,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:41:58,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 443 [2021-10-28 08:41:58,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:41:58,705 INFO L225 Difference]: With dead ends: 94507 [2021-10-28 08:41:58,705 INFO L226 Difference]: Without dead ends: 49505 [2021-10-28 08:41:58,732 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:58,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49505 states. [2021-10-28 08:41:59,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49505 to 47854. [2021-10-28 08:41:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47854 states, 47853 states have (on average 1.0772783315570602) internal successors, (51551), 47853 states have internal predecessors, (51551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47854 states to 47854 states and 51551 transitions. [2021-10-28 08:41:59,637 INFO L78 Accepts]: Start accepts. Automaton has 47854 states and 51551 transitions. Word has length 443 [2021-10-28 08:41:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:41:59,637 INFO L470 AbstractCegarLoop]: Abstraction has 47854 states and 51551 transitions. [2021-10-28 08:41:59,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:41:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand 47854 states and 51551 transitions. [2021-10-28 08:41:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-10-28 08:41:59,662 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:41:59,663 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:41:59,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 08:41:59,663 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:41:59,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:41:59,664 INFO L85 PathProgramCache]: Analyzing trace with hash 293678199, now seen corresponding path program 1 times [2021-10-28 08:41:59,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:41:59,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154708197] [2021-10-28 08:41:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:41:59,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:41:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:41:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-10-28 08:41:59,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:41:59,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154708197] [2021-10-28 08:41:59,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154708197] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:41:59,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:41:59,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:41:59,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4154322] [2021-10-28 08:41:59,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:41:59,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:41:59,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:41:59,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:41:59,889 INFO L87 Difference]: Start difference. First operand 47854 states and 51551 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:42:01,011 INFO L93 Difference]: Finished difference Result 100818 states and 108560 transitions. [2021-10-28 08:42:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:42:01,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 461 [2021-10-28 08:42:01,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:42:01,072 INFO L225 Difference]: With dead ends: 100818 [2021-10-28 08:42:01,072 INFO L226 Difference]: Without dead ends: 53169 [2021-10-28 08:42:01,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:42:01,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53169 states. [2021-10-28 08:42:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53169 to 46429. [2021-10-28 08:42:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46429 states, 46428 states have (on average 1.0721762729387438) internal successors, (49779), 46428 states have internal predecessors, (49779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:01,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46429 states to 46429 states and 49779 transitions. [2021-10-28 08:42:01,978 INFO L78 Accepts]: Start accepts. Automaton has 46429 states and 49779 transitions. Word has length 461 [2021-10-28 08:42:01,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:42:01,979 INFO L470 AbstractCegarLoop]: Abstraction has 46429 states and 49779 transitions. [2021-10-28 08:42:01,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:01,979 INFO L276 IsEmpty]: Start isEmpty. Operand 46429 states and 49779 transitions. [2021-10-28 08:42:02,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-10-28 08:42:02,005 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:42:02,006 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:02,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 08:42:02,007 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:42:02,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:02,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1466435766, now seen corresponding path program 1 times [2021-10-28 08:42:02,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:02,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178185067] [2021-10-28 08:42:02,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:02,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2021-10-28 08:42:02,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:42:02,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178185067] [2021-10-28 08:42:02,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178185067] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:42:02,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:42:02,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:42:02,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422419837] [2021-10-28 08:42:02,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:42:02,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:42:02,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:42:02,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:42:02,568 INFO L87 Difference]: Start difference. First operand 46429 states and 49779 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:42:03,364 INFO L93 Difference]: Finished difference Result 93466 states and 100179 transitions. [2021-10-28 08:42:03,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:42:03,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 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 505 [2021-10-28 08:42:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:42:03,408 INFO L225 Difference]: With dead ends: 93466 [2021-10-28 08:42:03,409 INFO L226 Difference]: Without dead ends: 47242 [2021-10-28 08:42:03,428 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:42:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47242 states. [2021-10-28 08:42:04,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47242 to 46835. [2021-10-28 08:42:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46835 states, 46834 states have (on average 1.0718281590297647) internal successors, (50198), 46834 states have internal predecessors, (50198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46835 states to 46835 states and 50198 transitions. [2021-10-28 08:42:04,280 INFO L78 Accepts]: Start accepts. Automaton has 46835 states and 50198 transitions. Word has length 505 [2021-10-28 08:42:04,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:42:04,280 INFO L470 AbstractCegarLoop]: Abstraction has 46835 states and 50198 transitions. [2021-10-28 08:42:04,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 2 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:04,281 INFO L276 IsEmpty]: Start isEmpty. Operand 46835 states and 50198 transitions. [2021-10-28 08:42:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2021-10-28 08:42:04,318 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:42:04,319 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:04,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 08:42:04,319 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:42:04,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:04,320 INFO L85 PathProgramCache]: Analyzing trace with hash -344733684, now seen corresponding path program 1 times [2021-10-28 08:42:04,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:04,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851490420] [2021-10-28 08:42:04,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:04,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 324 proven. 9 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-10-28 08:42:04,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:42:04,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851490420] [2021-10-28 08:42:04,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851490420] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:42:04,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920797462] [2021-10-28 08:42:04,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:04,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:42:04,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:04,629 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:42:04,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 08:42:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:05,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:42:05,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:06,646 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-10-28 08:42:06,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920797462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:42:06,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:42:06,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-28 08:42:06,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904397447] [2021-10-28 08:42:06,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:42:06,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:42:06,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:42:06,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:42:06,651 INFO L87 Difference]: Start difference. First operand 46835 states and 50198 transitions. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:08,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:42:08,072 INFO L93 Difference]: Finished difference Result 110558 states and 118807 transitions. [2021-10-28 08:42:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:42:08,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 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 509 [2021-10-28 08:42:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:42:08,074 INFO L225 Difference]: With dead ends: 110558 [2021-10-28 08:42:08,089 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:42:08,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:42:08,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:42:08,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:42:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:42:08,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 509 [2021-10-28 08:42:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:42:08,127 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:08,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:42:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:42:08,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:42:08,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:42:08,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:08,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:42:08,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:42:08,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:42:09,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:42:09,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:42:12,349 INFO L857 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,350 INFO L857 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-10-28 08:42:12,351 INFO L857 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,352 INFO L857 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-10-28 08:42:12,353 INFO L857 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-10-28 08:42:12,353 INFO L857 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-10-28 08:42:12,353 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,353 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,353 INFO L857 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,353 INFO L857 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,353 INFO L857 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,353 INFO L857 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,354 INFO L857 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-10-28 08:42:12,354 INFO L857 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-10-28 08:42:12,354 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,354 INFO L857 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-10-28 08:42:12,354 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,354 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-10-28 08:42:12,354 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-10-28 08:42:12,354 INFO L857 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,355 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,355 INFO L857 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,355 INFO L857 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,355 INFO L857 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,355 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,355 INFO L857 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,355 INFO L857 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-10-28 08:42:12,356 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,356 INFO L857 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-10-28 08:42:12,356 INFO L857 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-10-28 08:42:12,356 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,357 INFO L857 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,357 INFO L857 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,357 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,357 INFO L857 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-10-28 08:42:12,357 INFO L857 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-10-28 08:42:12,358 INFO L857 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,358 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,358 INFO L857 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,358 INFO L857 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,358 INFO L857 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,359 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,359 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,359 INFO L857 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,359 INFO L857 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,359 INFO L857 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,360 INFO L857 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-10-28 08:42:12,360 INFO L857 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-10-28 08:42:12,360 INFO L857 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-10-28 08:42:12,360 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,360 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,360 INFO L857 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,360 INFO L857 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,360 INFO L857 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,361 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,361 INFO L857 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-10-28 08:42:12,361 INFO L857 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-10-28 08:42:12,361 INFO L857 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-10-28 08:42:12,361 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,362 INFO L857 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,362 INFO L857 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,362 INFO L857 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,362 INFO L857 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,362 INFO L857 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,363 INFO L857 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-10-28 08:42:12,363 INFO L857 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-10-28 08:42:12,363 INFO L857 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-10-28 08:42:12,363 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,363 INFO L857 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,364 INFO L857 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,364 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-10-28 08:42:12,364 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,364 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-10-28 08:42:12,364 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:42:12,365 INFO L857 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,365 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,365 INFO L857 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-10-28 08:42:12,365 INFO L857 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-10-28 08:42:12,365 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,365 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,366 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,366 INFO L857 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,366 INFO L857 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,366 INFO L857 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,366 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,367 INFO L857 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-10-28 08:42:12,367 INFO L857 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-10-28 08:42:12,367 INFO L857 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-10-28 08:42:12,367 INFO L857 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-10-28 08:42:12,367 INFO L857 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-10-28 08:42:12,368 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,368 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,368 INFO L857 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,368 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,368 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,369 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,369 INFO L857 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,369 INFO L857 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,369 INFO L857 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,369 INFO L857 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,370 INFO L857 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-10-28 08:42:12,370 INFO L857 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-10-28 08:42:12,370 INFO L857 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-10-28 08:42:12,370 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,370 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,371 INFO L857 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,371 INFO L857 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,371 INFO L857 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,371 INFO L857 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,371 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,372 INFO L857 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,372 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,372 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:42:12,372 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1657) no Hoare annotation was computed. [2021-10-28 08:42:12,372 INFO L857 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-10-28 08:42:12,373 INFO L857 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-10-28 08:42:12,373 INFO L857 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-10-28 08:42:12,373 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-10-28 08:42:12,373 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-10-28 08:42:12,373 INFO L857 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,374 INFO L857 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,374 INFO L857 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,374 INFO L857 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,374 INFO L857 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,375 INFO L857 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,375 INFO L857 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,375 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,375 INFO L857 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-10-28 08:42:12,375 INFO L857 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-10-28 08:42:12,375 INFO L857 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-10-28 08:42:12,376 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,376 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,376 INFO L857 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,376 INFO L857 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-10-28 08:42:12,376 INFO L857 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-10-28 08:42:12,377 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,377 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,377 INFO L857 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,377 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-10-28 08:42:12,377 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,378 INFO L857 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-10-28 08:42:12,378 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,378 INFO L857 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-10-28 08:42:12,378 INFO L857 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,378 INFO L857 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,379 INFO L857 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-10-28 08:42:12,379 INFO L857 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-10-28 08:42:12,379 INFO L857 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-10-28 08:42:12,379 INFO L857 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-10-28 08:42:12,379 INFO L857 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-10-28 08:42:12,380 INFO L857 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-10-28 08:42:12,380 INFO L857 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-10-28 08:42:12,380 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,380 INFO L857 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,380 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,381 INFO L853 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse6 (<= ~a3~0 1)) (.cse9 (= ~a12~0 1)) (.cse7 (<= 1 ~a3~0)) (.cse10 (= ~a11~0 1)) (.cse3 (<= ~a12~0 0)) (.cse5 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse1 (= ~a16~0 1)) (.cse2 (= ~a11~0 0)) (.cse8 (= ~a27~0 1)) (.cse4 (= ~a3~0 0))) (or (and .cse0 .cse1 (<= ~a26~0 0) .cse2 .cse3 .cse4 (<= ~a6~0 0)) (and .cse5 .cse0 .cse6 .cse7 .cse2 .cse8) (and .cse0 .cse9 .cse1 .cse10 .cse8 .cse4) (and .cse5 .cse0 .cse1 .cse10 .cse8 .cse4) (and .cse0 (not (= ~a7~0 1)) .cse2 .cse4) (and .cse5 .cse0 .cse9 .cse10 .cse8 .cse4) (and .cse5 .cse0 .cse9 .cse1 .cse2 .cse4) (and .cse5 .cse0 .cse9 .cse2 .cse8 .cse4) (and .cse5 .cse0 .cse6 .cse7 .cse10 .cse3 .cse8) (and .cse0 .cse7 .cse1 .cse2) (and .cse5 .cse0 .cse9 .cse1 .cse10 .cse4) (and .cse0 .cse7 .cse1 .cse10) (and .cse0 .cse1 .cse10 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse8 .cse4))) [2021-10-28 08:42:12,381 INFO L857 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,381 INFO L857 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,382 INFO L857 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,382 INFO L857 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-10-28 08:42:12,382 INFO L857 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-10-28 08:42:12,382 INFO L857 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,382 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,383 INFO L857 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,383 INFO L860 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-10-28 08:42:12,383 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,383 INFO L857 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,383 INFO L857 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,384 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,384 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,384 INFO L857 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,384 INFO L857 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-10-28 08:42:12,384 INFO L857 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-10-28 08:42:12,384 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,384 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,385 INFO L857 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,385 INFO L857 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,385 INFO L857 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,385 INFO L857 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,385 INFO L857 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,386 INFO L857 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,386 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,386 INFO L857 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-10-28 08:42:12,386 INFO L857 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-10-28 08:42:12,386 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,387 INFO L857 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,387 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-10-28 08:42:12,387 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-10-28 08:42:12,387 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,388 INFO L853 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse6 (<= ~a3~0 1)) (.cse9 (= ~a12~0 1)) (.cse7 (<= 1 ~a3~0)) (.cse10 (= ~a11~0 1)) (.cse3 (<= ~a12~0 0)) (.cse5 (= ~a26~0 1)) (.cse0 (= ~a5~0 1)) (.cse1 (= ~a16~0 1)) (.cse2 (= ~a11~0 0)) (.cse8 (= ~a27~0 1)) (.cse4 (= ~a3~0 0))) (or (and .cse0 .cse1 (<= ~a26~0 0) .cse2 .cse3 .cse4 (<= ~a6~0 0)) (and .cse5 .cse0 .cse6 .cse7 .cse2 .cse8) (and .cse0 .cse9 .cse1 .cse10 .cse8 .cse4) (and .cse5 .cse0 .cse1 .cse10 .cse8 .cse4) (and .cse0 (not (= ~a7~0 1)) .cse2 .cse4) (and .cse5 .cse0 .cse9 .cse10 .cse8 .cse4) (and .cse5 .cse0 .cse9 .cse1 .cse2 .cse4) (and .cse5 .cse0 .cse9 .cse2 .cse8 .cse4) (and .cse5 .cse0 .cse6 .cse7 .cse10 .cse3 .cse8) (and .cse0 .cse7 .cse1 .cse2) (and .cse5 .cse0 .cse9 .cse1 .cse10 .cse4) (and .cse0 .cse7 .cse1 .cse10) (and .cse0 .cse1 .cse10 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse2 .cse8 .cse4))) [2021-10-28 08:42:12,388 INFO L857 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,388 INFO L857 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,388 INFO L857 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,388 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,389 INFO L857 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-10-28 08:42:12,389 INFO L857 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-10-28 08:42:12,389 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,389 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,389 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,389 INFO L857 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,390 INFO L857 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,390 INFO L857 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,390 INFO L857 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,390 INFO L857 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,390 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:42:12,391 INFO L857 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-10-28 08:42:12,391 INFO L857 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-10-28 08:42:12,391 INFO L857 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-10-28 08:42:12,391 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,391 INFO L857 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-10-28 08:42:12,392 INFO L857 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,392 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,392 INFO L857 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-10-28 08:42:12,392 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,392 INFO L857 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,392 INFO L857 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,393 INFO L857 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,393 INFO L857 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,393 INFO L857 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-10-28 08:42:12,393 INFO L857 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,393 INFO L857 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-10-28 08:42:12,394 INFO L857 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-10-28 08:42:12,394 INFO L857 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-10-28 08:42:12,394 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,394 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,394 INFO L857 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,395 INFO L857 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,395 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,395 INFO L857 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,395 INFO L857 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,395 INFO L857 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,395 INFO L857 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-10-28 08:42:12,396 INFO L857 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-10-28 08:42:12,396 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,396 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,396 INFO L857 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-10-28 08:42:12,396 INFO L857 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-10-28 08:42:12,397 INFO L857 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-10-28 08:42:12,397 INFO L857 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,397 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,397 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,397 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,397 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,398 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:42:12,398 INFO L857 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,398 INFO L857 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,398 INFO L857 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,398 INFO L857 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,399 INFO L857 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,399 INFO L857 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,399 INFO L857 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-10-28 08:42:12,399 INFO L857 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-10-28 08:42:12,399 INFO L857 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-10-28 08:42:12,399 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,399 INFO L857 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,399 INFO L857 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,400 INFO L857 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,400 INFO L857 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,400 INFO L857 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,400 INFO L857 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,400 INFO L857 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-10-28 08:42:12,400 INFO L857 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-10-28 08:42:12,400 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,400 INFO L857 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-10-28 08:42:12,401 INFO L857 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,402 INFO L857 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,402 INFO L857 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-10-28 08:42:12,404 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:12,406 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:42:12,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:42:12 BoogieIcfgContainer [2021-10-28 08:42:12,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:42:12,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:42:12,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:42:12,472 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:42:12,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:41:17" (3/4) ... [2021-10-28 08:42:12,476 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:42:12,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-28 08:42:12,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 08:42:12,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:42:12,531 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:42:12,790 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:42:12,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:42:12,793 INFO L168 Benchmark]: Toolchain (without parser) took 59364.89 ms. Allocated memory was 79.7 MB in the beginning and 11.5 GB in the end (delta: 11.4 GB). Free memory was 55.1 MB in the beginning and 9.8 GB in the end (delta: -9.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2021-10-28 08:42:12,793 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:12,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1204.84 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 55.1 MB in the beginning and 50.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:12,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 218.11 ms. Allocated memory is still 96.5 MB. Free memory was 50.9 MB in the beginning and 62.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:12,795 INFO L168 Benchmark]: Boogie Preprocessor took 157.72 ms. Allocated memory is still 96.5 MB. Free memory was 62.4 MB in the beginning and 51.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:12,795 INFO L168 Benchmark]: RCFGBuilder took 2524.63 ms. Allocated memory was 96.5 MB in the beginning and 138.4 MB in the end (delta: 41.9 MB). Free memory was 51.9 MB in the beginning and 85.6 MB in the end (delta: -33.7 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:12,796 INFO L168 Benchmark]: TraceAbstraction took 54918.55 ms. Allocated memory was 138.4 MB in the beginning and 11.5 GB in the end (delta: 11.3 GB). Free memory was 84.7 MB in the beginning and 9.9 GB in the end (delta: -9.8 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.1 GB. [2021-10-28 08:42:12,796 INFO L168 Benchmark]: Witness Printer took 319.71 ms. Allocated memory is still 11.5 GB. Free memory was 9.9 GB in the beginning and 9.8 GB in the end (delta: 36.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:12,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1204.84 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 55.1 MB in the beginning and 50.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 218.11 ms. Allocated memory is still 96.5 MB. Free memory was 50.9 MB in the beginning and 62.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 157.72 ms. Allocated memory is still 96.5 MB. Free memory was 62.4 MB in the beginning and 51.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2524.63 ms. Allocated memory was 96.5 MB in the beginning and 138.4 MB in the end (delta: 41.9 MB). Free memory was 51.9 MB in the beginning and 85.6 MB in the end (delta: -33.7 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 54918.55 ms. Allocated memory was 138.4 MB in the beginning and 11.5 GB in the end (delta: 11.3 GB). Free memory was 84.7 MB in the beginning and 9.9 GB in the end (delta: -9.8 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.1 GB. * Witness Printer took 319.71 ms. Allocated memory is still 11.5 GB. Free memory was 9.9 GB in the beginning and 9.8 GB in the end (delta: 36.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1657]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.7s, OverallIterations: 19, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 28.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2949 SDtfs, 7047 SDslu, 869 SDs, 0 SdLazy, 15753 SolverSat, 2839 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1464 GetRequests, 1423 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60755occurred in iteration=13, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 27076 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 607 NumberOfFragments, 507 HoareAnnotationTreeSize, 3 FomulaSimplifications, 33698 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2244 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 7610 NumberOfCodeBlocks, 7610 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 7587 ConstructedInterpolants, 0 QuantifiedInterpolants, 14931 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2499 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 23 InterpolantComputations, 18 PerfectInterpolantSequences, 4396/4436 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((((((((((((a5 == 1 && a16 == 1) && a26 <= 0) && a11 == 0) && a12 <= 0) && a3 == 0) && a6 <= 0) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && 1 <= a3) && a11 == 0) && a27 == 1)) || (((((a5 == 1 && a12 == 1) && a16 == 1) && a11 == 1) && a27 == 1) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a16 == 1) && a11 == 1) && a27 == 1) && a3 == 0)) || (((a5 == 1 && !(a7 == 1)) && a11 == 0) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 1) && a27 == 1) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a16 == 1) && a11 == 0) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a27 == 1) && a3 == 0)) || ((((((a26 == 1 && a5 == 1) && a3 <= 1) && 1 <= a3) && a11 == 1) && a12 <= 0) && a27 == 1)) || (((a5 == 1 && 1 <= a3) && a16 == 1) && a11 == 0)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a16 == 1) && a11 == 1) && a3 == 0)) || (((a5 == 1 && 1 <= a3) && a16 == 1) && a11 == 1)) || ((((a5 == 1 && a16 == 1) && a11 == 1) && a12 <= 0) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a16 == 1) && a11 == 0) && a27 == 1) && a3 == 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((a5 == 1 && a16 == 1) && a26 <= 0) && a11 == 0) && a12 <= 0) && a3 == 0) && a6 <= 0) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && 1 <= a3) && a11 == 0) && a27 == 1)) || (((((a5 == 1 && a12 == 1) && a16 == 1) && a11 == 1) && a27 == 1) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a16 == 1) && a11 == 1) && a27 == 1) && a3 == 0)) || (((a5 == 1 && !(a7 == 1)) && a11 == 0) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 1) && a27 == 1) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a16 == 1) && a11 == 0) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a27 == 1) && a3 == 0)) || ((((((a26 == 1 && a5 == 1) && a3 <= 1) && 1 <= a3) && a11 == 1) && a12 <= 0) && a27 == 1)) || (((a5 == 1 && 1 <= a3) && a16 == 1) && a11 == 0)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a16 == 1) && a11 == 1) && a3 == 0)) || (((a5 == 1 && 1 <= a3) && a16 == 1) && a11 == 1)) || ((((a5 == 1 && a16 == 1) && a11 == 1) && a12 <= 0) && a3 == 0)) || (((((a26 == 1 && a5 == 1) && a16 == 1) && a11 == 0) && a27 == 1) && a3 == 0) RESULT: Ultimate proved your program to be correct! [2021-10-28 08:42:12,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16976e82-8f70-45c3-8a14-697f3e06461a/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...