./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db3674d4e110d61289adcfc52216f8004ef1ec49416f84e6bf350103cb2e8879 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:44:11,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:44:11,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:44:11,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:44:11,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:44:11,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:44:11,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:44:11,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:44:11,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:44:11,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:44:11,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:44:11,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:44:11,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:44:11,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:44:11,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:44:11,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:44:11,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:44:11,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:44:11,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:44:11,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:44:11,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:44:11,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:44:11,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:44:11,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:44:11,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:44:11,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:44:11,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:44:11,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:44:11,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:44:11,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:44:11,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:44:11,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:44:11,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:44:11,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:44:11,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:44:11,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:44:11,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:44:11,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:44:11,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:44:11,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:44:11,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:44:11,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:44:11,714 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:44:11,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:44:11,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:44:11,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:44:11,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:44:11,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:44:11,723 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:44:11,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:44:11,724 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:44:11,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:44:11,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:44:11,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:44:11,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:44:11,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:44:11,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:44:11,725 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:44:11,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:44:11,726 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:44:11,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:44:11,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:44:11,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:44:11,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:44:11,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:44:11,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:44:11,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:44:11,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:44:11,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:44:11,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:44:11,728 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:44:11,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:44:11,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:44:11,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:44:11,729 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_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db3674d4e110d61289adcfc52216f8004ef1ec49416f84e6bf350103cb2e8879 [2021-11-07 08:44:12,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:44:12,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:44:12,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:44:12,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:44:12,046 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:44:12,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/eca-rers2012/Problem02_label23.c [2021-11-07 08:44:12,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/data/7cf9d1a28/321c7a98de1c4d709fcaeebda2710071/FLAG91a8f46df [2021-11-07 08:44:12,678 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:44:12,679 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/sv-benchmarks/c/eca-rers2012/Problem02_label23.c [2021-11-07 08:44:12,711 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/data/7cf9d1a28/321c7a98de1c4d709fcaeebda2710071/FLAG91a8f46df [2021-11-07 08:44:12,955 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/data/7cf9d1a28/321c7a98de1c4d709fcaeebda2710071 [2021-11-07 08:44:12,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:44:12,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:44:12,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:44:12,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:44:12,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:44:12,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:44:12" (1/1) ... [2021-11-07 08:44:12,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762613d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:12, skipping insertion in model container [2021-11-07 08:44:12,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:44:12" (1/1) ... [2021-11-07 08:44:12,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:44:13,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:44:13,410 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_5efd5920-d406-418e-aeed-e99f600d9e0f/sv-benchmarks/c/eca-rers2012/Problem02_label23.c[20538,20551] [2021-11-07 08:44:13,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:44:13,456 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:44:13,610 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_5efd5920-d406-418e-aeed-e99f600d9e0f/sv-benchmarks/c/eca-rers2012/Problem02_label23.c[20538,20551] [2021-11-07 08:44:13,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:44:13,643 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:44:13,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13 WrapperNode [2021-11-07 08:44:13,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:44:13,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:44:13,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:44:13,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:44:13,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:44:13,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:44:13,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:44:13,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:44:13,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:44:13,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:44:13,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:44:13,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:44:13,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (1/1) ... [2021-11-07 08:44:13,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:44:13,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:44:13,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:44:13,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:44:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:44:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:44:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:44:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:44:15,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:44:15,137 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 08:44:15,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:44:15 BoogieIcfgContainer [2021-11-07 08:44:15,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:44:15,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:44:15,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:44:15,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:44:15,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:44:12" (1/3) ... [2021-11-07 08:44:15,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8a1b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:44:15, skipping insertion in model container [2021-11-07 08:44:15,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:44:13" (2/3) ... [2021-11-07 08:44:15,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8a1b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:44:15, skipping insertion in model container [2021-11-07 08:44:15,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:44:15" (3/3) ... [2021-11-07 08:44:15,150 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label23.c [2021-11-07 08:44:15,158 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:44:15,159 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:44:15,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:44:15,217 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 08:44:15,217 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:44:15,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:15,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-07 08:44:15,252 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:15,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:15,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:15,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:15,259 INFO L85 PathProgramCache]: Analyzing trace with hash 724191355, now seen corresponding path program 1 times [2021-11-07 08:44:15,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:15,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686784871] [2021-11-07 08:44:15,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:15,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:15,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:15,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686784871] [2021-11-07 08:44:15,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686784871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:15,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:15,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:44:15,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748566198] [2021-11-07 08:44:15,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:15,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:15,686 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:16,500 INFO L93 Difference]: Finished difference Result 639 states and 1082 transitions. [2021-11-07 08:44:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:16,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-11-07 08:44:16,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:16,515 INFO L225 Difference]: With dead ends: 639 [2021-11-07 08:44:16,515 INFO L226 Difference]: Without dead ends: 318 [2021-11-07 08:44:16,520 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 [2021-11-07 08:44:16,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-11-07 08:44:16,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2021-11-07 08:44:16,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.4711538461538463) internal successors, (459), 312 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:16,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2021-11-07 08:44:16,578 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 133 [2021-11-07 08:44:16,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:16,579 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2021-11-07 08:44:16,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2021-11-07 08:44:16,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-07 08:44:16,584 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:16,584 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:16,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:44:16,585 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:16,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1132661744, now seen corresponding path program 1 times [2021-11-07 08:44:16,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:16,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866147992] [2021-11-07 08:44:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:16,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:16,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:16,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866147992] [2021-11-07 08:44:16,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866147992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:16,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:16,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:16,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127145527] [2021-11-07 08:44:16,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:44:16,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:16,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:44:16,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:44:16,828 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:17,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:17,615 INFO L93 Difference]: Finished difference Result 989 states and 1492 transitions. [2021-11-07 08:44:17,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:44:17,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-11-07 08:44:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:17,621 INFO L225 Difference]: With dead ends: 989 [2021-11-07 08:44:17,621 INFO L226 Difference]: Without dead ends: 595 [2021-11-07 08:44:17,623 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 [2021-11-07 08:44:17,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2021-11-07 08:44:17,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2021-11-07 08:44:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.3383838383838385) internal successors, (795), 594 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 795 transitions. [2021-11-07 08:44:17,683 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 795 transitions. Word has length 137 [2021-11-07 08:44:17,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:17,685 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 795 transitions. [2021-11-07 08:44:17,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:17,686 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 795 transitions. [2021-11-07 08:44:17,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-07 08:44:17,695 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:17,696 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:17,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:44:17,697 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:17,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:17,699 INFO L85 PathProgramCache]: Analyzing trace with hash 822417955, now seen corresponding path program 1 times [2021-11-07 08:44:17,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:17,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206114210] [2021-11-07 08:44:17,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:17,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 08:44:17,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:17,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206114210] [2021-11-07 08:44:17,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206114210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:17,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:17,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:44:17,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192971150] [2021-11-07 08:44:17,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:17,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:17,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:17,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:17,824 INFO L87 Difference]: Start difference. First operand 595 states and 795 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:18,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:18,441 INFO L93 Difference]: Finished difference Result 1753 states and 2346 transitions. [2021-11-07 08:44:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:18,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2021-11-07 08:44:18,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:18,449 INFO L225 Difference]: With dead ends: 1753 [2021-11-07 08:44:18,449 INFO L226 Difference]: Without dead ends: 1160 [2021-11-07 08:44:18,452 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 [2021-11-07 08:44:18,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2021-11-07 08:44:18,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1157. [2021-11-07 08:44:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.208477508650519) internal successors, (1397), 1156 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:18,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1397 transitions. [2021-11-07 08:44:18,504 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1397 transitions. Word has length 163 [2021-11-07 08:44:18,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:18,505 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1397 transitions. [2021-11-07 08:44:18,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1397 transitions. [2021-11-07 08:44:18,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-07 08:44:18,513 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:18,513 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:18,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:44:18,514 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash -694289663, now seen corresponding path program 1 times [2021-11-07 08:44:18,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:18,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555238577] [2021-11-07 08:44:18,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:18,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 08:44:18,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:18,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555238577] [2021-11-07 08:44:18,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555238577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:18,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:18,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:18,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699560235] [2021-11-07 08:44:18,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:18,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:18,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:18,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:18,651 INFO L87 Difference]: Start difference. First operand 1157 states and 1397 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:19,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:19,161 INFO L93 Difference]: Finished difference Result 2733 states and 3360 transitions. [2021-11-07 08:44:19,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:19,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-07 08:44:19,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:19,171 INFO L225 Difference]: With dead ends: 2733 [2021-11-07 08:44:19,171 INFO L226 Difference]: Without dead ends: 1293 [2021-11-07 08:44:19,174 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 [2021-11-07 08:44:19,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2021-11-07 08:44:19,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1293. [2021-11-07 08:44:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1292 states have (on average 1.1710526315789473) internal successors, (1513), 1292 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1513 transitions. [2021-11-07 08:44:19,214 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1513 transitions. Word has length 171 [2021-11-07 08:44:19,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:19,215 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 1513 transitions. [2021-11-07 08:44:19,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:19,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1513 transitions. [2021-11-07 08:44:19,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-07 08:44:19,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:19,221 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:19,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:44:19,221 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:19,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:19,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1035742500, now seen corresponding path program 1 times [2021-11-07 08:44:19,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:19,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656380568] [2021-11-07 08:44:19,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:19,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 08:44:19,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:19,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656380568] [2021-11-07 08:44:19,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656380568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:19,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:19,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:19,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427687412] [2021-11-07 08:44:19,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:19,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:19,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:19,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:19,313 INFO L87 Difference]: Start difference. First operand 1293 states and 1513 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:19,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:19,801 INFO L93 Difference]: Finished difference Result 3145 states and 3691 transitions. [2021-11-07 08:44:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:19,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-11-07 08:44:19,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:19,813 INFO L225 Difference]: With dead ends: 3145 [2021-11-07 08:44:19,814 INFO L226 Difference]: Without dead ends: 1854 [2021-11-07 08:44:19,816 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 [2021-11-07 08:44:19,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2021-11-07 08:44:19,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1713. [2021-11-07 08:44:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1712 states have (on average 1.1764018691588785) internal successors, (2014), 1712 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2014 transitions. [2021-11-07 08:44:19,870 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2014 transitions. Word has length 173 [2021-11-07 08:44:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:19,871 INFO L470 AbstractCegarLoop]: Abstraction has 1713 states and 2014 transitions. [2021-11-07 08:44:19,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:19,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2014 transitions. [2021-11-07 08:44:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-07 08:44:19,876 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:19,876 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:19,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 08:44:19,877 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1038540324, now seen corresponding path program 1 times [2021-11-07 08:44:19,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:19,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803543989] [2021-11-07 08:44:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:19,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:19,970 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:19,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:19,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803543989] [2021-11-07 08:44:19,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803543989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:19,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:19,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:44:19,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565036691] [2021-11-07 08:44:19,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:44:19,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:19,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:44:19,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:44:19,973 INFO L87 Difference]: Start difference. First operand 1713 states and 2014 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:20,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:20,829 INFO L93 Difference]: Finished difference Result 3454 states and 4055 transitions. [2021-11-07 08:44:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 08:44:20,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-11-07 08:44:20,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:20,839 INFO L225 Difference]: With dead ends: 3454 [2021-11-07 08:44:20,839 INFO L226 Difference]: Without dead ends: 1743 [2021-11-07 08:44:20,841 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:44:20,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2021-11-07 08:44:20,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1710. [2021-11-07 08:44:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1709 states have (on average 1.1597425394967817) internal successors, (1982), 1709 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:20,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 1982 transitions. [2021-11-07 08:44:20,882 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 1982 transitions. Word has length 174 [2021-11-07 08:44:20,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:20,883 INFO L470 AbstractCegarLoop]: Abstraction has 1710 states and 1982 transitions. [2021-11-07 08:44:20,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:20,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 1982 transitions. [2021-11-07 08:44:20,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-07 08:44:20,888 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:20,889 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:20,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 08:44:20,889 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:20,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:20,890 INFO L85 PathProgramCache]: Analyzing trace with hash -755945360, now seen corresponding path program 1 times [2021-11-07 08:44:20,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:20,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877153161] [2021-11-07 08:44:20,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:20,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:21,003 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 08:44:21,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:21,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877153161] [2021-11-07 08:44:21,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877153161] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:21,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:21,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:44:21,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786136593] [2021-11-07 08:44:21,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:44:21,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:21,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:44:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:44:21,008 INFO L87 Difference]: Start difference. First operand 1710 states and 1982 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:21,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:21,864 INFO L93 Difference]: Finished difference Result 3737 states and 4324 transitions. [2021-11-07 08:44:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 08:44:21,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-07 08:44:21,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:21,875 INFO L225 Difference]: With dead ends: 3737 [2021-11-07 08:44:21,875 INFO L226 Difference]: Without dead ends: 1743 [2021-11-07 08:44:21,879 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:44:21,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2021-11-07 08:44:21,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1710. [2021-11-07 08:44:21,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1709 states have (on average 1.122878876535986) internal successors, (1919), 1709 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 1919 transitions. [2021-11-07 08:44:21,925 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 1919 transitions. Word has length 191 [2021-11-07 08:44:21,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:21,925 INFO L470 AbstractCegarLoop]: Abstraction has 1710 states and 1919 transitions. [2021-11-07 08:44:21,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:21,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 1919 transitions. [2021-11-07 08:44:21,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-07 08:44:21,930 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:21,931 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:21,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 08:44:21,931 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:21,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:21,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1043778938, now seen corresponding path program 1 times [2021-11-07 08:44:21,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:21,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395860654] [2021-11-07 08:44:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:21,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:22,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:22,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395860654] [2021-11-07 08:44:22,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395860654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:22,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:22,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:22,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598102515] [2021-11-07 08:44:22,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:22,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:22,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:22,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:22,019 INFO L87 Difference]: Start difference. First operand 1710 states and 1919 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:22,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:22,466 INFO L93 Difference]: Finished difference Result 3981 states and 4500 transitions. [2021-11-07 08:44:22,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:22,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-11-07 08:44:22,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:22,477 INFO L225 Difference]: With dead ends: 3981 [2021-11-07 08:44:22,477 INFO L226 Difference]: Without dead ends: 2273 [2021-11-07 08:44:22,479 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 [2021-11-07 08:44:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-11-07 08:44:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2132. [2021-11-07 08:44:22,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 2131 states have (on average 1.1130924448615673) internal successors, (2372), 2131 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:22,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2372 transitions. [2021-11-07 08:44:22,528 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2372 transitions. Word has length 195 [2021-11-07 08:44:22,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:22,528 INFO L470 AbstractCegarLoop]: Abstraction has 2132 states and 2372 transitions. [2021-11-07 08:44:22,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:22,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2372 transitions. [2021-11-07 08:44:22,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-07 08:44:22,534 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:22,535 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:22,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 08:44:22,535 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:22,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:22,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1666423825, now seen corresponding path program 1 times [2021-11-07 08:44:22,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:22,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987074182] [2021-11-07 08:44:22,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:22,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-07 08:44:22,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:22,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987074182] [2021-11-07 08:44:22,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987074182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:22,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:22,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:22,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043891379] [2021-11-07 08:44:22,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:22,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:22,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:22,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:22,634 INFO L87 Difference]: Start difference. First operand 2132 states and 2372 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:23,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:23,050 INFO L93 Difference]: Finished difference Result 4682 states and 5196 transitions. [2021-11-07 08:44:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:23,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2021-11-07 08:44:23,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:23,062 INFO L225 Difference]: With dead ends: 4682 [2021-11-07 08:44:23,062 INFO L226 Difference]: Without dead ends: 2269 [2021-11-07 08:44:23,065 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 [2021-11-07 08:44:23,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2021-11-07 08:44:23,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2269. [2021-11-07 08:44:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2269 states, 2268 states have (on average 1.08994708994709) internal successors, (2472), 2268 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:23,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 2472 transitions. [2021-11-07 08:44:23,114 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 2472 transitions. Word has length 218 [2021-11-07 08:44:23,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:23,115 INFO L470 AbstractCegarLoop]: Abstraction has 2269 states and 2472 transitions. [2021-11-07 08:44:23,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:23,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 2472 transitions. [2021-11-07 08:44:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-07 08:44:23,121 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:23,122 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:23,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 08:44:23,122 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:23,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash 311285573, now seen corresponding path program 1 times [2021-11-07 08:44:23,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:23,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945420837] [2021-11-07 08:44:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:23,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:23,196 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 08:44:23,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:23,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945420837] [2021-11-07 08:44:23,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945420837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:23,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:23,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:23,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801886707] [2021-11-07 08:44:23,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:23,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:23,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:23,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:23,199 INFO L87 Difference]: Start difference. First operand 2269 states and 2472 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:23,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:23,601 INFO L93 Difference]: Finished difference Result 4950 states and 5382 transitions. [2021-11-07 08:44:23,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:23,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2021-11-07 08:44:23,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:23,617 INFO L225 Difference]: With dead ends: 4950 [2021-11-07 08:44:23,617 INFO L226 Difference]: Without dead ends: 2683 [2021-11-07 08:44:23,620 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 [2021-11-07 08:44:23,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2021-11-07 08:44:23,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2123. [2021-11-07 08:44:23,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2122 states have (on average 1.0772855796418472) internal successors, (2286), 2122 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:23,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2286 transitions. [2021-11-07 08:44:23,685 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2286 transitions. Word has length 231 [2021-11-07 08:44:23,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:23,685 INFO L470 AbstractCegarLoop]: Abstraction has 2123 states and 2286 transitions. [2021-11-07 08:44:23,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:23,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2286 transitions. [2021-11-07 08:44:23,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-07 08:44:23,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:23,692 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:23,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 08:44:23,692 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:23,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:23,693 INFO L85 PathProgramCache]: Analyzing trace with hash -461205200, now seen corresponding path program 1 times [2021-11-07 08:44:23,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:23,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085146570] [2021-11-07 08:44:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:23,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:23,894 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:23,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:23,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085146570] [2021-11-07 08:44:23,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085146570] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:44:23,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901067873] [2021-11-07 08:44:23,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:23,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:44:23,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:44:23,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:44:23,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:44:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:24,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:44:24,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:44:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-07 08:44:24,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901067873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:24,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 08:44:24,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-07 08:44:24,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805071095] [2021-11-07 08:44:24,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:24,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:24,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:24,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:44:24,802 INFO L87 Difference]: Start difference. First operand 2123 states and 2286 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:25,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:25,204 INFO L93 Difference]: Finished difference Result 4950 states and 5338 transitions. [2021-11-07 08:44:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:25,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2021-11-07 08:44:25,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:25,219 INFO L225 Difference]: With dead ends: 4950 [2021-11-07 08:44:25,219 INFO L226 Difference]: Without dead ends: 2689 [2021-11-07 08:44:25,222 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:44:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2021-11-07 08:44:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2549. [2021-11-07 08:44:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2548 states have (on average 1.0710361067503924) internal successors, (2729), 2548 states have internal predecessors, (2729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:25,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 2729 transitions. [2021-11-07 08:44:25,278 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 2729 transitions. Word has length 231 [2021-11-07 08:44:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:25,279 INFO L470 AbstractCegarLoop]: Abstraction has 2549 states and 2729 transitions. [2021-11-07 08:44:25,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:25,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 2729 transitions. [2021-11-07 08:44:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-07 08:44:25,286 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:25,286 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:25,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:44:25,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:44:25,500 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:44:25,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:25,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1543473761, now seen corresponding path program 1 times [2021-11-07 08:44:25,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:25,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050704083] [2021-11-07 08:44:25,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:25,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-11-07 08:44:25,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:25,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050704083] [2021-11-07 08:44:25,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050704083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:25,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:25,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:25,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703946496] [2021-11-07 08:44:25,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:25,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:25,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:25,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:25,646 INFO L87 Difference]: Start difference. First operand 2549 states and 2729 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:26,027 INFO L93 Difference]: Finished difference Result 4248 states and 4552 transitions. [2021-11-07 08:44:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-11-07 08:44:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:26,029 INFO L225 Difference]: With dead ends: 4248 [2021-11-07 08:44:26,029 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 08:44:26,033 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 [2021-11-07 08:44:26,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 08:44:26,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 08:44:26,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:26,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 08:44:26,034 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2021-11-07 08:44:26,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:26,034 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:44:26,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:44:26,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:44:26,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 08:44:26,037 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:44:26,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 08:44:26,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 08:44:26,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:44:26,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:44:26,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:44:26,527 INFO L857 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,528 INFO L857 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,528 INFO L857 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,528 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-11-07 08:44:26,528 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-11-07 08:44:26,528 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-11-07 08:44:26,528 INFO L857 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-11-07 08:44:26,528 INFO L857 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-11-07 08:44:26,528 INFO L857 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-11-07 08:44:26,529 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-11-07 08:44:26,530 INFO L857 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-11-07 08:44:26,531 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-11-07 08:44:26,531 INFO L857 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-11-07 08:44:26,531 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-11-07 08:44:26,531 INFO L857 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,531 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,531 INFO L857 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,531 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-11-07 08:44:26,531 INFO L857 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-11-07 08:44:26,532 INFO L857 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-11-07 08:44:26,532 INFO L857 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-11-07 08:44:26,533 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-11-07 08:44:26,533 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-11-07 08:44:26,533 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-11-07 08:44:26,533 INFO L857 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,533 INFO L857 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,533 INFO L857 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,533 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-11-07 08:44:26,534 INFO L857 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-11-07 08:44:26,534 INFO L857 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-11-07 08:44:26,534 INFO L857 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-11-07 08:44:26,534 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-11-07 08:44:26,534 INFO L857 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-11-07 08:44:26,534 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-11-07 08:44:26,535 INFO L857 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,535 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,535 INFO L857 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,535 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-11-07 08:44:26,535 INFO L857 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-11-07 08:44:26,535 INFO L857 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-11-07 08:44:26,536 INFO L857 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-11-07 08:44:26,536 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-11-07 08:44:26,536 INFO L857 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,536 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,536 INFO L857 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,536 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-11-07 08:44:26,536 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-11-07 08:44:26,537 INFO L857 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-11-07 08:44:26,537 INFO L857 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-11-07 08:44:26,537 INFO L857 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-11-07 08:44:26,537 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-11-07 08:44:26,537 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-11-07 08:44:26,537 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-11-07 08:44:26,538 INFO L857 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,538 INFO L857 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,538 INFO L857 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,538 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-11-07 08:44:26,538 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 08:44:26,538 INFO L857 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-11-07 08:44:26,539 INFO L857 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-11-07 08:44:26,539 INFO L857 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-11-07 08:44:26,539 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-11-07 08:44:26,539 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-11-07 08:44:26,539 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-11-07 08:44:26,539 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-11-07 08:44:26,539 INFO L857 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,540 INFO L857 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,540 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,540 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-11-07 08:44:26,540 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-11-07 08:44:26,540 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-11-07 08:44:26,540 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-11-07 08:44:26,541 INFO L857 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-11-07 08:44:26,541 INFO L857 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-11-07 08:44:26,541 INFO L857 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-11-07 08:44:26,541 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-11-07 08:44:26,541 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-11-07 08:44:26,541 INFO L857 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,542 INFO L857 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,542 INFO L857 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,542 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-11-07 08:44:26,542 INFO L857 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-11-07 08:44:26,542 INFO L857 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-11-07 08:44:26,542 INFO L857 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-11-07 08:44:26,543 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-11-07 08:44:26,543 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-11-07 08:44:26,543 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 08:44:26,543 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 581) no Hoare annotation was computed. [2021-11-07 08:44:26,543 INFO L857 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,543 INFO L857 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,544 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,544 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-11-07 08:44:26,544 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-11-07 08:44:26,544 INFO L857 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-11-07 08:44:26,544 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-11-07 08:44:26,544 INFO L857 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-11-07 08:44:26,545 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-11-07 08:44:26,545 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-11-07 08:44:26,545 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-11-07 08:44:26,545 INFO L857 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,545 INFO L857 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,545 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,546 INFO L857 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-11-07 08:44:26,546 INFO L857 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-11-07 08:44:26,546 INFO L857 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-11-07 08:44:26,546 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-11-07 08:44:26,546 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-11-07 08:44:26,546 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,547 INFO L857 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,547 INFO L857 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,547 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-11-07 08:44:26,547 INFO L857 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-11-07 08:44:26,547 INFO L857 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-11-07 08:44:26,547 INFO L857 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-11-07 08:44:26,547 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-11-07 08:44:26,548 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-11-07 08:44:26,548 INFO L857 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-11-07 08:44:26,548 INFO L857 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-11-07 08:44:26,548 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-11-07 08:44:26,548 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-11-07 08:44:26,548 INFO L857 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-11-07 08:44:26,549 INFO L857 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,549 INFO L857 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,549 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-11-07 08:44:26,549 INFO L857 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-11-07 08:44:26,549 INFO L857 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-11-07 08:44:26,549 INFO L857 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-11-07 08:44:26,549 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-11-07 08:44:26,550 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-11-07 08:44:26,550 INFO L857 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-11-07 08:44:26,550 INFO L857 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-11-07 08:44:26,550 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-11-07 08:44:26,551 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse7 (= ~a25~0 1)) (.cse5 (<= ~a19~0 0)) (.cse4 (not (= ~a11~0 1))) (.cse6 (= ~a17~0 8)) (.cse8 (= ~a21~0 1)) (.cse3 (<= ~a28~0 10)) (.cse9 (= ~a19~0 1)) (.cse1 (<= ~a25~0 0)) (.cse2 (<= 10 ~a28~0)) (.cse0 (<= ~a17~0 7))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5) (and (<= ~a28~0 8) .cse4) (and .cse6 .cse7 (not (= 3 ULTIMATE.start_calculate_output_~input)) (= ~a28~0 11) .cse8 .cse9 .cse4) (and .cse2 .cse6 .cse8 .cse3 .cse9) (and .cse6 .cse7 .cse8 .cse9 (= ~a28~0 9)) (and .cse2 .cse4 .cse1 .cse5) (and .cse0 .cse5) (and .cse6 .cse8 .cse3 .cse9 .cse4) (and .cse6 (<= 9 ~a28~0) .cse8 .cse3 .cse9 .cse1) (and .cse2 .cse0) (<= ~a28~0 7))) [2021-11-07 08:44:26,551 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,551 INFO L857 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,551 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-11-07 08:44:26,551 INFO L857 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-11-07 08:44:26,552 INFO L857 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-11-07 08:44:26,552 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-11-07 08:44:26,552 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-11-07 08:44:26,552 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-11-07 08:44:26,552 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-11-07 08:44:26,552 INFO L857 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,552 INFO L857 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,553 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-11-07 08:44:26,553 INFO L857 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-11-07 08:44:26,553 INFO L857 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-11-07 08:44:26,553 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-11-07 08:44:26,553 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-11-07 08:44:26,553 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-11-07 08:44:26,554 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-11-07 08:44:26,554 INFO L857 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-11-07 08:44:26,554 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-11-07 08:44:26,554 INFO L857 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,554 INFO L857 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,554 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-11-07 08:44:26,554 INFO L857 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-11-07 08:44:26,555 INFO L857 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-11-07 08:44:26,555 INFO L857 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-11-07 08:44:26,555 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 08:44:26,555 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-11-07 08:44:26,555 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-11-07 08:44:26,556 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse7 (= ~a25~0 1)) (.cse5 (<= ~a19~0 0)) (.cse4 (not (= ~a11~0 1))) (.cse6 (= ~a17~0 8)) (.cse8 (= ~a21~0 1)) (.cse3 (<= ~a28~0 10)) (.cse9 (= ~a19~0 1)) (.cse1 (<= ~a25~0 0)) (.cse2 (<= 10 ~a28~0)) (.cse0 (<= ~a17~0 7))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5) (and (<= ~a28~0 8) .cse4) (and .cse6 .cse7 (not (= 3 ULTIMATE.start_calculate_output_~input)) (= ~a28~0 11) .cse8 .cse9 .cse4) (and .cse2 .cse6 .cse8 .cse3 .cse9) (and .cse6 .cse7 .cse8 .cse9 (= ~a28~0 9)) (and .cse2 .cse4 .cse1 .cse5) (and .cse0 .cse5) (and .cse6 .cse8 .cse3 .cse9 .cse4) (and .cse6 (<= 9 ~a28~0) .cse8 .cse3 .cse9 .cse1) (and .cse2 .cse0) (<= ~a28~0 7))) [2021-11-07 08:44:26,556 INFO L857 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,556 INFO L857 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,556 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-11-07 08:44:26,556 INFO L857 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-11-07 08:44:26,556 INFO L857 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-11-07 08:44:26,557 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-11-07 08:44:26,557 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-11-07 08:44:26,557 INFO L857 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,557 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,557 INFO L857 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-11-07 08:44:26,557 INFO L857 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-11-07 08:44:26,557 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-11-07 08:44:26,558 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-11-07 08:44:26,558 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-11-07 08:44:26,558 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-11-07 08:44:26,558 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-11-07 08:44:26,558 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-11-07 08:44:26,558 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-11-07 08:44:26,558 INFO L857 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,559 INFO L857 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,559 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-11-07 08:44:26,559 INFO L857 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,559 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 08:44:26,559 INFO L857 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-11-07 08:44:26,559 INFO L857 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-11-07 08:44:26,560 INFO L857 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-11-07 08:44:26,560 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-11-07 08:44:26,560 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-11-07 08:44:26,560 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-11-07 08:44:26,560 INFO L857 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,560 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,561 INFO L857 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,561 INFO L857 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-11-07 08:44:26,561 INFO L857 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-11-07 08:44:26,561 INFO L857 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-11-07 08:44:26,561 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-11-07 08:44:26,561 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-11-07 08:44:26,561 INFO L857 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,562 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,562 INFO L857 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-11-07 08:44:26,562 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-11-07 08:44:26,562 INFO L857 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-11-07 08:44:26,562 INFO L857 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-11-07 08:44:26,562 INFO L857 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-11-07 08:44:26,562 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-11-07 08:44:26,563 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-11-07 08:44:26,566 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:26,567 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:44:26,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:44:26 BoogieIcfgContainer [2021-11-07 08:44:26,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:44:26,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:44:26,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:44:26,588 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:44:26,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:44:15" (3/4) ... [2021-11-07 08:44:26,591 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 08:44:26,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 08:44:26,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 08:44:26,616 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:44:26,617 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:44:26,749 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:44:26,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:44:26,751 INFO L168 Benchmark]: Toolchain (without parser) took 13789.33 ms. Allocated memory was 140.5 MB in the beginning and 226.5 MB in the end (delta: 86.0 MB). Free memory was 105.4 MB in the beginning and 186.6 MB in the end (delta: -81.2 MB). Peak memory consumption was 104.8 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:26,751 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 58.0 MB in the beginning and 57.9 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:44:26,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.95 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 99.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:26,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.87 ms. Allocated memory is still 140.5 MB. Free memory was 99.6 MB in the beginning and 94.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:26,752 INFO L168 Benchmark]: Boogie Preprocessor took 103.58 ms. Allocated memory is still 140.5 MB. Free memory was 94.1 MB in the beginning and 89.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:26,753 INFO L168 Benchmark]: RCFGBuilder took 1301.65 ms. Allocated memory is still 140.5 MB. Free memory was 89.9 MB in the beginning and 106.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:26,753 INFO L168 Benchmark]: TraceAbstraction took 11444.77 ms. Allocated memory was 140.5 MB in the beginning and 188.7 MB in the end (delta: 48.2 MB). Free memory was 105.7 MB in the beginning and 52.8 MB in the end (delta: 52.9 MB). Peak memory consumption was 102.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:26,754 INFO L168 Benchmark]: Witness Printer took 161.68 ms. Allocated memory was 188.7 MB in the beginning and 226.5 MB in the end (delta: 37.7 MB). Free memory was 52.8 MB in the beginning and 186.6 MB in the end (delta: -133.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:44:26,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 58.0 MB in the beginning and 57.9 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 679.95 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 99.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.87 ms. Allocated memory is still 140.5 MB. Free memory was 99.6 MB in the beginning and 94.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.58 ms. Allocated memory is still 140.5 MB. Free memory was 94.1 MB in the beginning and 89.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1301.65 ms. Allocated memory is still 140.5 MB. Free memory was 89.9 MB in the beginning and 106.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11444.77 ms. Allocated memory was 140.5 MB in the beginning and 188.7 MB in the end (delta: 48.2 MB). Free memory was 105.7 MB in the beginning and 52.8 MB in the end (delta: 52.9 MB). Peak memory consumption was 102.2 MB. Max. memory is 16.1 GB. * Witness Printer took 161.68 ms. Allocated memory was 188.7 MB in the beginning and 226.5 MB in the end (delta: 37.7 MB). Free memory was 52.8 MB in the beginning and 186.6 MB in the end (delta: -133.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 581]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1416 SDtfs, 1857 SDslu, 269 SDs, 0 SdLazy, 5525 SolverSat, 929 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2549occurred in iteration=11, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1056 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 307 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3018 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 142 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2482 NumberOfCodeBlocks, 2482 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2469 ConstructedInterpolants, 0 QuantifiedInterpolants, 7968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 371 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 1011/1069 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 7 && a25 <= 0) || (((10 <= a28 && a28 <= 10) && !(a11 == 1)) && a19 <= 0)) || (a28 <= 8 && !(a11 == 1))) || ((((((a17 == 8 && a25 == 1) && !(3 == input)) && a28 == 11) && a21 == 1) && a19 == 1) && !(a11 == 1))) || ((((10 <= a28 && a17 == 8) && a21 == 1) && a28 <= 10) && a19 == 1)) || ((((a17 == 8 && a25 == 1) && a21 == 1) && a19 == 1) && a28 == 9)) || (((10 <= a28 && !(a11 == 1)) && a25 <= 0) && a19 <= 0)) || (a17 <= 7 && a19 <= 0)) || ((((a17 == 8 && a21 == 1) && a28 <= 10) && a19 == 1) && !(a11 == 1))) || (((((a17 == 8 && 9 <= a28) && a21 == 1) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (10 <= a28 && a17 <= 7)) || a28 <= 7 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 7 && a25 <= 0) || (((10 <= a28 && a28 <= 10) && !(a11 == 1)) && a19 <= 0)) || (a28 <= 8 && !(a11 == 1))) || ((((((a17 == 8 && a25 == 1) && !(3 == input)) && a28 == 11) && a21 == 1) && a19 == 1) && !(a11 == 1))) || ((((10 <= a28 && a17 == 8) && a21 == 1) && a28 <= 10) && a19 == 1)) || ((((a17 == 8 && a25 == 1) && a21 == 1) && a19 == 1) && a28 == 9)) || (((10 <= a28 && !(a11 == 1)) && a25 <= 0) && a19 <= 0)) || (a17 <= 7 && a19 <= 0)) || ((((a17 == 8 && a21 == 1) && a28 <= 10) && a19 == 1) && !(a11 == 1))) || (((((a17 == 8 && 9 <= a28) && a21 == 1) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (10 <= a28 && a17 <= 7)) || a28 <= 7 RESULT: Ultimate proved your program to be correct! [2021-11-07 08:44:26,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efd5920-d406-418e-aeed-e99f600d9e0f/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE