./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD --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 b9188b0bb7d345bde8858a6e4085c80a345a783efac7d50b39494fde4a7e156f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:03:36,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:03:36,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:03:36,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:03:36,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:03:36,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:03:36,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:03:36,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:03:36,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:03:36,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:03:36,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:03:36,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:03:36,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:03:36,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:03:36,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:03:36,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:03:36,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:03:36,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:03:36,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:03:36,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:03:36,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:03:36,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:03:36,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:03:36,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:03:36,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:03:36,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:03:36,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:03:36,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:03:36,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:03:36,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:03:36,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:03:36,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:03:36,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:03:36,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:03:36,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:03:36,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:03:36,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:03:36,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:03:36,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:03:36,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:03:36,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:03:36,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-29 00:03:36,761 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:03:36,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:03:36,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:03:36,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:03:36,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:03:36,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:03:36,766 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:03:36,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:03:36,766 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:03:36,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:03:36,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:03:36,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:03:36,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 00:03:36,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:03:36,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 00:03:36,770 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:03:36,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:03:36,770 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:03:36,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 00:03:36,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:03:36,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:03:36,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:03:36,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:36,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:03:36,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:03:36,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 00:03:36,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:03:36,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 00:03:36,797 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 00:03:36,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-29 00:03:36,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 00:03:36,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:03:36,798 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_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9188b0bb7d345bde8858a6e4085c80a345a783efac7d50b39494fde4a7e156f [2021-10-29 00:03:37,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:03:37,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:03:37,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:03:37,094 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:03:37,095 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:03:37,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2021-10-29 00:03:37,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/data/a6a8f95b5/a6f69a2a2610445ebae07422c4fe72a0/FLAG5e6ab22cd [2021-10-29 00:03:37,788 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:03:37,788 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2021-10-29 00:03:37,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/data/a6a8f95b5/a6f69a2a2610445ebae07422c4fe72a0/FLAG5e6ab22cd [2021-10-29 00:03:38,015 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/data/a6a8f95b5/a6f69a2a2610445ebae07422c4fe72a0 [2021-10-29 00:03:38,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:03:38,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:03:38,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:38,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:03:38,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:03:38,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:38,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3438b999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38, skipping insertion in model container [2021-10-29 00:03:38,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:38,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:03:38,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:03:38,363 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_13123fec-2a34-4b7d-b96d-112e1baafd6a/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2021-10-29 00:03:38,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:38,633 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:03:38,660 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_13123fec-2a34-4b7d-b96d-112e1baafd6a/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2021-10-29 00:03:38,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:38,774 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:03:38,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38 WrapperNode [2021-10-29 00:03:38,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:38,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:38,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:03:38,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:03:38,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:38,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:38,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:38,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:03:38,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:03:38,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:03:38,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:38,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:38,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:38,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:39,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:39,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:39,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:39,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:03:39,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:03:39,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:03:39,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:03:39,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (1/1) ... [2021-10-29 00:03:39,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:39,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:39,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:39,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:03:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:03:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:03:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:03:39,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:03:40,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:40,704 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 00:03:40,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:40 BoogieIcfgContainer [2021-10-29 00:03:40,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:40,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:03:40,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:03:40,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:03:40,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:03:38" (1/3) ... [2021-10-29 00:03:40,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eed5c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:40, skipping insertion in model container [2021-10-29 00:03:40,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:38" (2/3) ... [2021-10-29 00:03:40,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eed5c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:40, skipping insertion in model container [2021-10-29 00:03:40,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:40" (3/3) ... [2021-10-29 00:03:40,715 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2021-10-29 00:03:40,721 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:03:40,721 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 00:03:40,782 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:03:40,789 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 00:03:40,789 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 00:03:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:40,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-29 00:03:40,817 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:40,818 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] [2021-10-29 00:03:40,818 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:40,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2021-10-29 00:03:40,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:40,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540103677] [2021-10-29 00:03:40,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:40,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:41,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:41,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:41,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540103677] [2021-10-29 00:03:41,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540103677] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:41,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:41,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 00:03:41,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200699625] [2021-10-29 00:03:41,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:41,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:41,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:41,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:41,122 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:42,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:42,273 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-10-29 00:03:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:42,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-10-29 00:03:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:42,291 INFO L225 Difference]: With dead ends: 685 [2021-10-29 00:03:42,292 INFO L226 Difference]: Without dead ends: 360 [2021-10-29 00:03:42,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:42,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-29 00:03:42,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-29 00:03:42,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:42,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-10-29 00:03:42,356 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 35 [2021-10-29 00:03:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:42,357 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-10-29 00:03:42,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-10-29 00:03:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-10-29 00:03:42,366 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:42,366 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:42,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 00:03:42,367 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:42,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:42,370 INFO L85 PathProgramCache]: Analyzing trace with hash 183125839, now seen corresponding path program 1 times [2021-10-29 00:03:42,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:42,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615292591] [2021-10-29 00:03:42,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:42,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:42,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:42,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615292591] [2021-10-29 00:03:42,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615292591] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:42,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:42,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:42,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324770396] [2021-10-29 00:03:42,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:03:42,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:03:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:42,664 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:43,883 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-10-29 00:03:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:43,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-10-29 00:03:43,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:43,889 INFO L225 Difference]: With dead ends: 1074 [2021-10-29 00:03:43,889 INFO L226 Difference]: Without dead ends: 716 [2021-10-29 00:03:43,891 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:03:43,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-10-29 00:03:43,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-10-29 00:03:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:43,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-10-29 00:03:43,960 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 114 [2021-10-29 00:03:43,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:43,963 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-10-29 00:03:43,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:43,963 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-10-29 00:03:43,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-10-29 00:03:43,977 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:43,977 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:43,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 00:03:43,977 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:43,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:43,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1801900176, now seen corresponding path program 1 times [2021-10-29 00:03:43,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:43,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912132816] [2021-10-29 00:03:43,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:43,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-29 00:03:44,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:44,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912132816] [2021-10-29 00:03:44,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912132816] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:44,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504692218] [2021-10-29 00:03:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:44,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:44,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:44,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:44,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 00:03:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:44,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:44,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-10-29 00:03:44,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504692218] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:44,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:44,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-29 00:03:44,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987831387] [2021-10-29 00:03:44,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:44,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:44,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:44,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:03:44,813 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:45,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:45,534 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2021-10-29 00:03:45,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:45,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-10-29 00:03:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:45,544 INFO L225 Difference]: With dead ends: 1252 [2021-10-29 00:03:45,545 INFO L226 Difference]: Without dead ends: 1250 [2021-10-29 00:03:45,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:03:45,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-29 00:03:45,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2021-10-29 00:03:45,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:45,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2021-10-29 00:03:45,575 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 140 [2021-10-29 00:03:45,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:45,576 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2021-10-29 00:03:45,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:45,577 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2021-10-29 00:03:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-10-29 00:03:45,580 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:45,580 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:45,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:45,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:45,797 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:45,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash 689274588, now seen corresponding path program 1 times [2021-10-29 00:03:45,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:45,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543122823] [2021-10-29 00:03:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:45,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:45,911 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 00:03:45,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:45,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543122823] [2021-10-29 00:03:45,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543122823] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:45,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:45,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:45,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302271872] [2021-10-29 00:03:45,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:03:45,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:45,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:03:45,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:45,914 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:46,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:46,796 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2021-10-29 00:03:46,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:46,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2021-10-29 00:03:46,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:46,805 INFO L225 Difference]: With dead ends: 1993 [2021-10-29 00:03:46,806 INFO L226 Difference]: Without dead ends: 1072 [2021-10-29 00:03:46,807 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:46,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-29 00:03:46,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-10-29 00:03:46,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:46,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-10-29 00:03:46,841 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 194 [2021-10-29 00:03:46,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:46,842 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-10-29 00:03:46,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:46,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-10-29 00:03:46,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-10-29 00:03:46,846 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:46,846 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-29 00:03:46,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 00:03:46,847 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:46,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:46,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1077711776, now seen corresponding path program 1 times [2021-10-29 00:03:46,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:46,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043405833] [2021-10-29 00:03:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:46,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 65 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:47,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:47,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043405833] [2021-10-29 00:03:47,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043405833] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:47,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111319570] [2021-10-29 00:03:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:47,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:47,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:47,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:47,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 00:03:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:47,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:47,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-29 00:03:47,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111319570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:47,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:47,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-10-29 00:03:47,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993882459] [2021-10-29 00:03:47,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:47,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:47,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:47,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:47,723 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:48,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:48,304 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2021-10-29 00:03:48,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:48,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 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 206 [2021-10-29 00:03:48,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:48,312 INFO L225 Difference]: With dead ends: 2320 [2021-10-29 00:03:48,312 INFO L226 Difference]: Without dead ends: 1250 [2021-10-29 00:03:48,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:03:48,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-10-29 00:03:48,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2021-10-29 00:03:48,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:48,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2021-10-29 00:03:48,339 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 206 [2021-10-29 00:03:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:48,343 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2021-10-29 00:03:48,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2021-10-29 00:03:48,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-10-29 00:03:48,346 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:48,346 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-29 00:03:48,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:48,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:48,573 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:48,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:48,573 INFO L85 PathProgramCache]: Analyzing trace with hash 732384967, now seen corresponding path program 1 times [2021-10-29 00:03:48,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:48,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271895624] [2021-10-29 00:03:48,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:48,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:48,699 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:48,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:48,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271895624] [2021-10-29 00:03:48,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271895624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:48,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:48,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:48,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568947398] [2021-10-29 00:03:48,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:48,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:48,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:48,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:48,702 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:49,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:49,392 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2021-10-29 00:03:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:49,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2021-10-29 00:03:49,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:49,402 INFO L225 Difference]: With dead ends: 2854 [2021-10-29 00:03:49,402 INFO L226 Difference]: Without dead ends: 1784 [2021-10-29 00:03:49,404 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:49,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-10-29 00:03:49,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2021-10-29 00:03:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1364485981308412) internal successors, (1824), 1605 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:49,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1824 transitions. [2021-10-29 00:03:49,442 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1824 transitions. Word has length 209 [2021-10-29 00:03:49,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:49,443 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1824 transitions. [2021-10-29 00:03:49,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:49,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1824 transitions. [2021-10-29 00:03:49,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-10-29 00:03:49,448 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:49,448 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:49,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 00:03:49,449 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1686277103, now seen corresponding path program 1 times [2021-10-29 00:03:49,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:49,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267696124] [2021-10-29 00:03:49,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:49,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-10-29 00:03:49,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:49,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267696124] [2021-10-29 00:03:49,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267696124] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:49,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:49,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:49,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713765009] [2021-10-29 00:03:49,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:03:49,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:49,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:03:49,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:49,614 INFO L87 Difference]: Start difference. First operand 1606 states and 1824 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:50,365 INFO L93 Difference]: Finished difference Result 3268 states and 3727 transitions. [2021-10-29 00:03:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:03:50,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 326 [2021-10-29 00:03:50,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:50,378 INFO L225 Difference]: With dead ends: 3268 [2021-10-29 00:03:50,378 INFO L226 Difference]: Without dead ends: 1784 [2021-10-29 00:03:50,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:03:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-10-29 00:03:50,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2021-10-29 00:03:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0909657320872275) internal successors, (1751), 1605 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:50,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1751 transitions. [2021-10-29 00:03:50,423 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1751 transitions. Word has length 326 [2021-10-29 00:03:50,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:50,424 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1751 transitions. [2021-10-29 00:03:50,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:50,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1751 transitions. [2021-10-29 00:03:50,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-10-29 00:03:50,434 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:50,434 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:50,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 00:03:50,434 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:50,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:50,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1156793849, now seen corresponding path program 1 times [2021-10-29 00:03:50,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:50,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219638142] [2021-10-29 00:03:50,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:50,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-29 00:03:50,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:50,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219638142] [2021-10-29 00:03:50,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219638142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:50,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:50,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:50,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679670763] [2021-10-29 00:03:50,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:50,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:50,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:50,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:50,703 INFO L87 Difference]: Start difference. First operand 1606 states and 1751 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:51,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:51,308 INFO L93 Difference]: Finished difference Result 3922 states and 4309 transitions. [2021-10-29 00:03:51,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:51,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 421 [2021-10-29 00:03:51,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:51,324 INFO L225 Difference]: With dead ends: 3922 [2021-10-29 00:03:51,324 INFO L226 Difference]: Without dead ends: 2496 [2021-10-29 00:03:51,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:51,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-10-29 00:03:51,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2021-10-29 00:03:51,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.075981642019378) internal successors, (2110), 1961 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:51,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2110 transitions. [2021-10-29 00:03:51,379 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2110 transitions. Word has length 421 [2021-10-29 00:03:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:51,380 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2110 transitions. [2021-10-29 00:03:51,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2110 transitions. [2021-10-29 00:03:51,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2021-10-29 00:03:51,390 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:51,390 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:51,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 00:03:51,391 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:51,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:51,392 INFO L85 PathProgramCache]: Analyzing trace with hash 175456974, now seen corresponding path program 1 times [2021-10-29 00:03:51,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:51,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128766260] [2021-10-29 00:03:51,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:51,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-29 00:03:51,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:51,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128766260] [2021-10-29 00:03:51,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128766260] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:51,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:51,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:51,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52476798] [2021-10-29 00:03:51,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:51,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:51,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:51,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:51,593 INFO L87 Difference]: Start difference. First operand 1962 states and 2110 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:52,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:52,177 INFO L93 Difference]: Finished difference Result 4456 states and 4861 transitions. [2021-10-29 00:03:52,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:52,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 428 [2021-10-29 00:03:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:52,191 INFO L225 Difference]: With dead ends: 4456 [2021-10-29 00:03:52,191 INFO L226 Difference]: Without dead ends: 2674 [2021-10-29 00:03:52,194 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-10-29 00:03:52,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2021-10-29 00:03:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0819304152637486) internal successors, (2892), 2673 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2892 transitions. [2021-10-29 00:03:52,260 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2892 transitions. Word has length 428 [2021-10-29 00:03:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:52,260 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2892 transitions. [2021-10-29 00:03:52,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2892 transitions. [2021-10-29 00:03:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-10-29 00:03:52,265 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:52,265 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:52,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 00:03:52,266 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:52,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:52,266 INFO L85 PathProgramCache]: Analyzing trace with hash 75719335, now seen corresponding path program 1 times [2021-10-29 00:03:52,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:52,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234192131] [2021-10-29 00:03:52,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:52,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-10-29 00:03:52,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:52,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234192131] [2021-10-29 00:03:52,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234192131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:52,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:52,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:03:52,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699229646] [2021-10-29 00:03:52,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:52,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:52,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:52,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:52,476 INFO L87 Difference]: Start difference. First operand 2674 states and 2892 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:53,129 INFO L93 Difference]: Finished difference Result 6414 states and 7027 transitions. [2021-10-29 00:03:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:53,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 469 [2021-10-29 00:03:53,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:53,149 INFO L225 Difference]: With dead ends: 6414 [2021-10-29 00:03:53,149 INFO L226 Difference]: Without dead ends: 3920 [2021-10-29 00:03:53,152 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:03:53,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-10-29 00:03:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2021-10-29 00:03:53,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.077743474600056) internal successors, (3840), 3563 states have internal predecessors, (3840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3840 transitions. [2021-10-29 00:03:53,244 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3840 transitions. Word has length 469 [2021-10-29 00:03:53,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:53,246 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3840 transitions. [2021-10-29 00:03:53,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:53,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3840 transitions. [2021-10-29 00:03:53,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2021-10-29 00:03:53,253 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:53,253 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:53,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 00:03:53,254 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:53,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash -480601995, now seen corresponding path program 1 times [2021-10-29 00:03:53,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:53,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142606739] [2021-10-29 00:03:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:53,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:53,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 1034 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-29 00:03:53,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:53,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142606739] [2021-10-29 00:03:53,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142606739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:53,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441750377] [2021-10-29 00:03:53,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:53,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:53,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:53,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:53,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-29 00:03:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:53,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:53,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2021-10-29 00:03:55,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441750377] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:55,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:55,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-29 00:03:55,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365926017] [2021-10-29 00:03:55,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:55,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:55,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:55,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:03:55,280 INFO L87 Difference]: Start difference. First operand 3564 states and 3840 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:55,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:55,761 INFO L93 Difference]: Finished difference Result 7660 states and 8269 transitions. [2021-10-29 00:03:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:55,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 614 [2021-10-29 00:03:55,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:55,777 INFO L225 Difference]: With dead ends: 7660 [2021-10-29 00:03:55,777 INFO L226 Difference]: Without dead ends: 3564 [2021-10-29 00:03:55,782 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:03:55,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-10-29 00:03:55,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-10-29 00:03:55,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0723417524165888) internal successors, (3439), 3207 states have internal predecessors, (3439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:55,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3439 transitions. [2021-10-29 00:03:55,893 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3439 transitions. Word has length 614 [2021-10-29 00:03:55,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:55,894 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3439 transitions. [2021-10-29 00:03:55,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3439 transitions. [2021-10-29 00:03:55,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2021-10-29 00:03:55,903 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:55,904 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:55,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-29 00:03:56,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-29 00:03:56,117 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:56,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -265669101, now seen corresponding path program 1 times [2021-10-29 00:03:56,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:56,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804166632] [2021-10-29 00:03:56,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:56,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:56,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 1089 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-29 00:03:56,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:56,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804166632] [2021-10-29 00:03:56,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804166632] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:56,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32551420] [2021-10-29 00:03:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:56,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:56,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:56,540 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:56,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 00:03:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:57,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:03:57,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2021-10-29 00:03:58,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32551420] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:58,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:03:58,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-29 00:03:58,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551759272] [2021-10-29 00:03:58,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:03:58,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:58,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:03:58,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:03:58,343 INFO L87 Difference]: Start difference. First operand 3208 states and 3439 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:58,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:58,862 INFO L93 Difference]: Finished difference Result 6770 states and 7307 transitions. [2021-10-29 00:03:58,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:03:58,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 626 [2021-10-29 00:03:58,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:58,883 INFO L225 Difference]: With dead ends: 6770 [2021-10-29 00:03:58,883 INFO L226 Difference]: Without dead ends: 3742 [2021-10-29 00:03:58,886 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:03:58,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-10-29 00:03:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2021-10-29 00:03:58,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.06794682422452) internal successors, (3615), 3385 states have internal predecessors, (3615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3615 transitions. [2021-10-29 00:03:58,975 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3615 transitions. Word has length 626 [2021-10-29 00:03:58,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:58,976 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3615 transitions. [2021-10-29 00:03:58,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3615 transitions. [2021-10-29 00:03:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2021-10-29 00:03:58,983 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:58,983 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:59,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:59,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-29 00:03:59,197 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:59,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:59,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1547257260, now seen corresponding path program 1 times [2021-10-29 00:03:59,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:59,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19764379] [2021-10-29 00:03:59,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:59,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:59,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1165 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-29 00:03:59,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:59,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19764379] [2021-10-29 00:03:59,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19764379] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:03:59,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481098826] [2021-10-29 00:03:59,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:59,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:03:59,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:59,613 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:03:59,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-29 00:04:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:00,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 00:04:00,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:02,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1192 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2021-10-29 00:04:02,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481098826] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:02,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:04:02,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-29 00:04:02,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231448343] [2021-10-29 00:04:02,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:02,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:02,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:02,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:02,627 INFO L87 Difference]: Start difference. First operand 3386 states and 3615 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:03,081 INFO L93 Difference]: Finished difference Result 6770 states and 7232 transitions. [2021-10-29 00:04:03,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:03,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 645 [2021-10-29 00:04:03,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:03,098 INFO L225 Difference]: With dead ends: 6770 [2021-10-29 00:04:03,098 INFO L226 Difference]: Without dead ends: 3386 [2021-10-29 00:04:03,102 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-10-29 00:04:03,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2021-10-29 00:04:03,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0596750369276218) internal successors, (3587), 3385 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3587 transitions. [2021-10-29 00:04:03,186 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3587 transitions. Word has length 645 [2021-10-29 00:04:03,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:03,187 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3587 transitions. [2021-10-29 00:04:03,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3587 transitions. [2021-10-29 00:04:03,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2021-10-29 00:04:03,197 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:03,198 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:03,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:03,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:03,412 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:03,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:03,413 INFO L85 PathProgramCache]: Analyzing trace with hash -362013204, now seen corresponding path program 1 times [2021-10-29 00:04:03,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:03,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755535409] [2021-10-29 00:04:03,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:03,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 1314 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-29 00:04:03,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:03,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755535409] [2021-10-29 00:04:03,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755535409] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:03,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845700054] [2021-10-29 00:04:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:03,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:03,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:03,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:03,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-29 00:04:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:04,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:04:04,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-10-29 00:04:06,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845700054] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:06,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:04:06,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-29 00:04:06,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590458361] [2021-10-29 00:04:06,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:06,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:06,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:06,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:04:06,593 INFO L87 Difference]: Start difference. First operand 3386 states and 3587 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:07,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:07,025 INFO L93 Difference]: Finished difference Result 7482 states and 7950 transitions. [2021-10-29 00:04:07,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:07,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 790 [2021-10-29 00:04:07,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:07,048 INFO L225 Difference]: With dead ends: 7482 [2021-10-29 00:04:07,049 INFO L226 Difference]: Without dead ends: 4276 [2021-10-29 00:04:07,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:04:07,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-10-29 00:04:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2021-10-29 00:04:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0561386380278253) internal successors, (4327), 4097 states have internal predecessors, (4327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4327 transitions. [2021-10-29 00:04:07,127 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4327 transitions. Word has length 790 [2021-10-29 00:04:07,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:07,128 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4327 transitions. [2021-10-29 00:04:07,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4327 transitions. [2021-10-29 00:04:07,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2021-10-29 00:04:07,138 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:07,139 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:07,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:07,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:07,361 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:07,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1645945781, now seen corresponding path program 1 times [2021-10-29 00:04:07,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:07,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379632644] [2021-10-29 00:04:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:07,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:07,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-29 00:04:07,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:07,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379632644] [2021-10-29 00:04:07,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379632644] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:07,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951842144] [2021-10-29 00:04:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:07,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:07,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:07,830 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:07,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-29 00:04:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:09,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 00:04:09,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-10-29 00:04:10,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951842144] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:10,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:04:10,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-29 00:04:10,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601798345] [2021-10-29 00:04:10,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:04:10,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:10,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:04:10,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:04:10,934 INFO L87 Difference]: Start difference. First operand 4098 states and 4327 transitions. Second operand has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:11,617 INFO L93 Difference]: Finished difference Result 9086 states and 9600 transitions. [2021-10-29 00:04:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:04:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 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 819 [2021-10-29 00:04:11,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:11,631 INFO L225 Difference]: With dead ends: 9086 [2021-10-29 00:04:11,631 INFO L226 Difference]: Without dead ends: 5168 [2021-10-29 00:04:11,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:04:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5168 states. [2021-10-29 00:04:11,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5168 to 4810. [2021-10-29 00:04:11,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0526096901642754) internal successors, (5062), 4809 states have internal predecessors, (5062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5062 transitions. [2021-10-29 00:04:11,727 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5062 transitions. Word has length 819 [2021-10-29 00:04:11,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:11,728 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5062 transitions. [2021-10-29 00:04:11,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5062 transitions. [2021-10-29 00:04:11,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2021-10-29 00:04:11,745 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:11,746 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:11,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:11,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:11,965 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:11,965 INFO L85 PathProgramCache]: Analyzing trace with hash -175681709, now seen corresponding path program 1 times [2021-10-29 00:04:11,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:11,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047003631] [2021-10-29 00:04:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:11,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:12,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2484 backedges. 1680 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2021-10-29 00:04:12,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:12,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047003631] [2021-10-29 00:04:12,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047003631] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:12,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:12,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:04:12,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106301044] [2021-10-29 00:04:12,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:12,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:12,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:12,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:12,458 INFO L87 Difference]: Start difference. First operand 4810 states and 5062 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:13,035 INFO L93 Difference]: Finished difference Result 9796 states and 10340 transitions. [2021-10-29 00:04:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:13,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 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 881 [2021-10-29 00:04:13,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:13,048 INFO L225 Difference]: With dead ends: 9796 [2021-10-29 00:04:13,048 INFO L226 Difference]: Without dead ends: 5166 [2021-10-29 00:04:13,054 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:13,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-10-29 00:04:13,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2021-10-29 00:04:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.047434656340755) internal successors, (5410), 5165 states have internal predecessors, (5410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:13,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5410 transitions. [2021-10-29 00:04:13,146 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5410 transitions. Word has length 881 [2021-10-29 00:04:13,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:13,147 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5410 transitions. [2021-10-29 00:04:13,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5410 transitions. [2021-10-29 00:04:13,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2021-10-29 00:04:13,161 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:13,161 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:13,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-29 00:04:13,162 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:13,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:13,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1535028442, now seen corresponding path program 1 times [2021-10-29 00:04:13,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:13,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740265310] [2021-10-29 00:04:13,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:13,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2487 backedges. 1671 proven. 93 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2021-10-29 00:04:13,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:13,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740265310] [2021-10-29 00:04:13,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740265310] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:13,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362941299] [2021-10-29 00:04:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:13,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:13,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:13,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:13,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-29 00:04:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:15,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 00:04:15,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2487 backedges. 1766 proven. 266 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-10-29 00:04:23,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362941299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:23,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-29 00:04:23,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-10-29 00:04:23,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819435382] [2021-10-29 00:04:23,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 00:04:23,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:23,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 00:04:23,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-29 00:04:23,386 INFO L87 Difference]: Start difference. First operand 5166 states and 5410 transitions. Second operand has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:25,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:25,394 INFO L93 Difference]: Finished difference Result 10752 states and 11258 transitions. [2021-10-29 00:04:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-29 00:04:25,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 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 899 [2021-10-29 00:04:25,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:25,404 INFO L225 Difference]: With dead ends: 10752 [2021-10-29 00:04:25,404 INFO L226 Difference]: Without dead ends: 5404 [2021-10-29 00:04:25,410 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 910 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-10-29 00:04:25,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2021-10-29 00:04:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 5166. [2021-10-29 00:04:25,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0346563407550824) internal successors, (5344), 5165 states have internal predecessors, (5344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5344 transitions. [2021-10-29 00:04:25,549 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5344 transitions. Word has length 899 [2021-10-29 00:04:25,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:25,549 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5344 transitions. [2021-10-29 00:04:25,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:25,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5344 transitions. [2021-10-29 00:04:25,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2021-10-29 00:04:25,563 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:25,566 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:25,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:25,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-29 00:04:25,769 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:25,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:25,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2145794894, now seen corresponding path program 1 times [2021-10-29 00:04:25,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:25,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719270579] [2021-10-29 00:04:25,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:25,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3025 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2021-10-29 00:04:26,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:26,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719270579] [2021-10-29 00:04:26,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719270579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:26,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:26,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:04:26,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929545091] [2021-10-29 00:04:26,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:04:26,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:26,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:04:26,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:04:26,258 INFO L87 Difference]: Start difference. First operand 5166 states and 5344 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:26,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:26,859 INFO L93 Difference]: Finished difference Result 10014 states and 10361 transitions. [2021-10-29 00:04:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:04:26,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 1027 [2021-10-29 00:04:26,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:26,869 INFO L225 Difference]: With dead ends: 10014 [2021-10-29 00:04:26,869 INFO L226 Difference]: Without dead ends: 4988 [2021-10-29 00:04:26,874 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:04:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-29 00:04:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2021-10-29 00:04:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.03308602366152) internal successors, (5152), 4987 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:26,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5152 transitions. [2021-10-29 00:04:26,950 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5152 transitions. Word has length 1027 [2021-10-29 00:04:26,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:26,951 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5152 transitions. [2021-10-29 00:04:26,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5152 transitions. [2021-10-29 00:04:26,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2021-10-29 00:04:26,965 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:26,967 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-29 00:04:26,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-29 00:04:26,968 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:26,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:26,969 INFO L85 PathProgramCache]: Analyzing trace with hash 538441961, now seen corresponding path program 1 times [2021-10-29 00:04:26,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:26,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501188492] [2021-10-29 00:04:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:26,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2444 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2021-10-29 00:04:27,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:27,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501188492] [2021-10-29 00:04:27,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501188492] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:27,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634735571] [2021-10-29 00:04:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:27,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:27,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:27,477 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:27,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-29 00:04:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:29,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 00:04:29,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:31,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2157 proven. 0 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2021-10-29 00:04:31,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634735571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:31,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:04:31,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-10-29 00:04:31,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017358325] [2021-10-29 00:04:31,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:04:31,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:31,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:04:31,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:31,929 INFO L87 Difference]: Start difference. First operand 4988 states and 5152 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:32,668 INFO L93 Difference]: Finished difference Result 10152 states and 10493 transitions. [2021-10-29 00:04:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:04:32,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 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 1032 [2021-10-29 00:04:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:32,679 INFO L225 Difference]: With dead ends: 10152 [2021-10-29 00:04:32,680 INFO L226 Difference]: Without dead ends: 5344 [2021-10-29 00:04:32,684 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1036 GetRequests, 1031 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-10-29 00:04:32,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2021-10-29 00:04:32,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0323330106485964) internal successors, (5332), 5165 states have internal predecessors, (5332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:32,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5332 transitions. [2021-10-29 00:04:32,764 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5332 transitions. Word has length 1032 [2021-10-29 00:04:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:32,765 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5332 transitions. [2021-10-29 00:04:32,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:32,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5332 transitions. [2021-10-29 00:04:32,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2021-10-29 00:04:32,781 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:32,782 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:32,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:32,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:32,997 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:32,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:32,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1566111157, now seen corresponding path program 1 times [2021-10-29 00:04:32,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:32,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397841598] [2021-10-29 00:04:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:32,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3154 backedges. 1898 proven. 0 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2021-10-29 00:04:33,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:33,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397841598] [2021-10-29 00:04:33,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397841598] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:33,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:33,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:04:33,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991609093] [2021-10-29 00:04:33,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:33,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:33,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:33,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:33,520 INFO L87 Difference]: Start difference. First operand 5166 states and 5332 transitions. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:33,971 INFO L93 Difference]: Finished difference Result 10152 states and 10483 transitions. [2021-10-29 00:04:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 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 1034 [2021-10-29 00:04:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:33,981 INFO L225 Difference]: With dead ends: 10152 [2021-10-29 00:04:33,981 INFO L226 Difference]: Without dead ends: 5166 [2021-10-29 00:04:33,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-10-29 00:04:34,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2021-10-29 00:04:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0300782033286544) internal successors, (5137), 4987 states have internal predecessors, (5137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:34,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5137 transitions. [2021-10-29 00:04:34,062 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5137 transitions. Word has length 1034 [2021-10-29 00:04:34,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:34,063 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5137 transitions. [2021-10-29 00:04:34,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:34,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5137 transitions. [2021-10-29 00:04:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1392 [2021-10-29 00:04:34,160 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:34,162 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:34,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-29 00:04:34,162 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:34,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:34,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1049269503, now seen corresponding path program 1 times [2021-10-29 00:04:34,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:34,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393698016] [2021-10-29 00:04:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:34,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5939 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2021-10-29 00:04:34,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:34,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393698016] [2021-10-29 00:04:34,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393698016] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:34,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:34,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:04:34,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137531752] [2021-10-29 00:04:34,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:34,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:34,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:34,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:34,816 INFO L87 Difference]: Start difference. First operand 4988 states and 5137 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:35,242 INFO L93 Difference]: Finished difference Result 9796 states and 10093 transitions. [2021-10-29 00:04:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:35,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 1391 [2021-10-29 00:04:35,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:35,255 INFO L225 Difference]: With dead ends: 9796 [2021-10-29 00:04:35,255 INFO L226 Difference]: Without dead ends: 4988 [2021-10-29 00:04:35,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-29 00:04:35,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2021-10-29 00:04:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0272709043513135) internal successors, (5123), 4987 states have internal predecessors, (5123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5123 transitions. [2021-10-29 00:04:35,397 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5123 transitions. Word has length 1391 [2021-10-29 00:04:35,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:35,398 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5123 transitions. [2021-10-29 00:04:35,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5123 transitions. [2021-10-29 00:04:35,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1647 [2021-10-29 00:04:35,424 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:35,425 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:35,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-29 00:04:35,426 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:35,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:35,426 INFO L85 PathProgramCache]: Analyzing trace with hash -172671030, now seen corresponding path program 1 times [2021-10-29 00:04:35,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:35,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486784015] [2021-10-29 00:04:35,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:35,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 8542 backedges. 4927 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2021-10-29 00:04:36,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:36,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486784015] [2021-10-29 00:04:36,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486784015] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:36,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:36,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:04:36,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285597006] [2021-10-29 00:04:36,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:04:36,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:36,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:04:36,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:36,636 INFO L87 Difference]: Start difference. First operand 4988 states and 5123 transitions. Second operand has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:38,403 INFO L93 Difference]: Finished difference Result 11949 states and 12300 transitions. [2021-10-29 00:04:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 00:04:38,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 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 1646 [2021-10-29 00:04:38,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:38,418 INFO L225 Difference]: With dead ends: 11949 [2021-10-29 00:04:38,418 INFO L226 Difference]: Without dead ends: 6592 [2021-10-29 00:04:38,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:38,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2021-10-29 00:04:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 5878. [2021-10-29 00:04:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0200782712268164) internal successors, (5995), 5877 states have internal predecessors, (5995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:38,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 5995 transitions. [2021-10-29 00:04:38,523 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 5995 transitions. Word has length 1646 [2021-10-29 00:04:38,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:38,525 INFO L470 AbstractCegarLoop]: Abstraction has 5878 states and 5995 transitions. [2021-10-29 00:04:38,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:38,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 5995 transitions. [2021-10-29 00:04:38,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1743 [2021-10-29 00:04:38,589 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:38,590 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:38,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-29 00:04:38,591 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1952577186, now seen corresponding path program 1 times [2021-10-29 00:04:38,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:38,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316715684] [2021-10-29 00:04:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:38,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 2756 proven. 1045 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2021-10-29 00:04:39,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:39,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316715684] [2021-10-29 00:04:39,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316715684] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 00:04:39,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101950344] [2021-10-29 00:04:39,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:39,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 00:04:39,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:04:39,709 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 00:04:39,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-29 00:04:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:42,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 00:04:42,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 3801 proven. 0 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2021-10-29 00:04:45,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101950344] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:45,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-29 00:04:45,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-29 00:04:45,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187775781] [2021-10-29 00:04:45,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:45,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:45,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:45,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:04:45,925 INFO L87 Difference]: Start difference. First operand 5878 states and 5995 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:46,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:46,335 INFO L93 Difference]: Finished difference Result 11754 states and 11988 transitions. [2021-10-29 00:04:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:46,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 1742 [2021-10-29 00:04:46,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:46,347 INFO L225 Difference]: With dead ends: 11754 [2021-10-29 00:04:46,348 INFO L226 Difference]: Without dead ends: 4988 [2021-10-29 00:04:46,352 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1745 GetRequests, 1741 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:04:46,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-29 00:04:46,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-10-29 00:04:46,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.01621958827199) internal successors, (4887), 4809 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4887 transitions. [2021-10-29 00:04:46,420 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4887 transitions. Word has length 1742 [2021-10-29 00:04:46,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:46,422 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4887 transitions. [2021-10-29 00:04:46,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:46,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4887 transitions. [2021-10-29 00:04:46,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1814 [2021-10-29 00:04:46,455 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:46,456 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:46,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:46,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-29 00:04:46,681 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:46,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:46,682 INFO L85 PathProgramCache]: Analyzing trace with hash -354861792, now seen corresponding path program 1 times [2021-10-29 00:04:46,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:46,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618944619] [2021-10-29 00:04:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:46,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10875 backedges. 2724 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2021-10-29 00:04:47,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:47,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618944619] [2021-10-29 00:04:47,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618944619] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:47,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:47,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 00:04:47,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314426315] [2021-10-29 00:04:47,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:04:47,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:47,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:04:47,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:04:47,884 INFO L87 Difference]: Start difference. First operand 4810 states and 4887 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:48,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:48,713 INFO L93 Difference]: Finished difference Result 11220 states and 11418 transitions. [2021-10-29 00:04:48,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:04:48,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 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 1813 [2021-10-29 00:04:48,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:48,725 INFO L225 Difference]: With dead ends: 11220 [2021-10-29 00:04:48,725 INFO L226 Difference]: Without dead ends: 6590 [2021-10-29 00:04:48,729 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:04:48,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2021-10-29 00:04:48,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 5700. [2021-10-29 00:04:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0175469380593087) internal successors, (5799), 5699 states have internal predecessors, (5799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:48,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5799 transitions. [2021-10-29 00:04:48,815 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5799 transitions. Word has length 1813 [2021-10-29 00:04:48,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:48,817 INFO L470 AbstractCegarLoop]: Abstraction has 5700 states and 5799 transitions. [2021-10-29 00:04:48,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:48,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5799 transitions. [2021-10-29 00:04:48,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2116 [2021-10-29 00:04:48,864 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:48,865 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:48,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-29 00:04:48,866 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:48,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:48,867 INFO L85 PathProgramCache]: Analyzing trace with hash 58677289, now seen corresponding path program 1 times [2021-10-29 00:04:48,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:48,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521318682] [2021-10-29 00:04:48,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:48,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 14461 backedges. 3142 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2021-10-29 00:04:50,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:50,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521318682] [2021-10-29 00:04:50,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521318682] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:50,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:50,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 00:04:50,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094949513] [2021-10-29 00:04:50,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:04:50,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:50,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:04:50,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:04:50,266 INFO L87 Difference]: Start difference. First operand 5700 states and 5799 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:50,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:50,697 INFO L93 Difference]: Finished difference Result 11220 states and 11406 transitions. [2021-10-29 00:04:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:04:50,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2115 [2021-10-29 00:04:50,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:50,723 INFO L225 Difference]: With dead ends: 11220 [2021-10-29 00:04:50,724 INFO L226 Difference]: Without dead ends: 5700 [2021-10-29 00:04:50,727 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:04:50,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-10-29 00:04:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2021-10-29 00:04:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0153471832303949) internal successors, (5425), 5343 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:50,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5425 transitions. [2021-10-29 00:04:50,803 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5425 transitions. Word has length 2115 [2021-10-29 00:04:50,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:50,806 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5425 transitions. [2021-10-29 00:04:50,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:50,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5425 transitions. [2021-10-29 00:04:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2313 [2021-10-29 00:04:50,856 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:50,858 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:50,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-29 00:04:50,858 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:50,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1798942431, now seen corresponding path program 1 times [2021-10-29 00:04:50,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:50,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075224216] [2021-10-29 00:04:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:50,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 16826 backedges. 2513 proven. 0 refuted. 0 times theorem prover too weak. 14313 trivial. 0 not checked. [2021-10-29 00:04:52,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:52,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075224216] [2021-10-29 00:04:52,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075224216] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:52,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:52,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:04:52,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634701953] [2021-10-29 00:04:52,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 00:04:52,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:52,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 00:04:52,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:52,713 INFO L87 Difference]: Start difference. First operand 5344 states and 5425 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:53,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:53,200 INFO L93 Difference]: Finished difference Result 10330 states and 10490 transitions. [2021-10-29 00:04:53,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 00:04:53,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 2312 [2021-10-29 00:04:53,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:53,210 INFO L225 Difference]: With dead ends: 10330 [2021-10-29 00:04:53,211 INFO L226 Difference]: Without dead ends: 5344 [2021-10-29 00:04:53,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 00:04:53,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-10-29 00:04:53,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2021-10-29 00:04:53,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0133591481122943) internal successors, (5234), 5165 states have internal predecessors, (5234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:53,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5234 transitions. [2021-10-29 00:04:53,281 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5234 transitions. Word has length 2312 [2021-10-29 00:04:53,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:53,283 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5234 transitions. [2021-10-29 00:04:53,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:53,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5234 transitions. [2021-10-29 00:04:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2730 [2021-10-29 00:04:53,417 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:53,419 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 16, 16, 16, 14, 14, 14, 14, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:53,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-29 00:04:53,419 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:53,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:53,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1902740227, now seen corresponding path program 1 times [2021-10-29 00:04:53,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:04:53,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89986141] [2021-10-29 00:04:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:53,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:04:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 23424 backedges. 11345 proven. 0 refuted. 0 times theorem prover too weak. 12079 trivial. 0 not checked. [2021-10-29 00:04:55,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:04:55,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89986141] [2021-10-29 00:04:55,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89986141] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:55,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:55,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:04:55,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254181453] [2021-10-29 00:04:55,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:04:55,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:04:55,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:04:55,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:04:55,383 INFO L87 Difference]: Start difference. First operand 5166 states and 5234 transitions. Second operand has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:56,230 INFO L93 Difference]: Finished difference Result 9124 states and 9244 transitions. [2021-10-29 00:04:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 00:04:56,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 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 2729 [2021-10-29 00:04:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:56,234 INFO L225 Difference]: With dead ends: 9124 [2021-10-29 00:04:56,234 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 00:04:56,236 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:04:56,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 00:04:56,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 00:04:56,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 00:04:56,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2729 [2021-10-29 00:04:56,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:56,238 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:04:56,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 00:04:56,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 00:04:56,242 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:04:56,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-29 00:04:56,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 00:04:56,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:04:56,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:04:56,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:04:59,447 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-29 00:04:59,447 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-29 00:04:59,448 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-29 00:04:59,449 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,450 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-29 00:04:59,451 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-29 00:04:59,452 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 00:04:59,453 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-29 00:04:59,454 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,455 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,455 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,455 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-29 00:04:59,455 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-29 00:04:59,455 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-29 00:04:59,455 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-29 00:04:59,455 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-29 00:04:59,456 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-29 00:04:59,456 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-29 00:04:59,456 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-29 00:04:59,456 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,456 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,456 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,456 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-29 00:04:59,457 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-29 00:04:59,457 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-29 00:04:59,457 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 00:04:59,457 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-29 00:04:59,457 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 119) no Hoare annotation was computed. [2021-10-29 00:04:59,457 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-29 00:04:59,458 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-29 00:04:59,458 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-29 00:04:59,458 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-29 00:04:59,458 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,458 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,458 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,459 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-29 00:04:59,459 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-29 00:04:59,459 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-29 00:04:59,459 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-29 00:04:59,459 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-29 00:04:59,459 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-29 00:04:59,459 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-29 00:04:59,460 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-29 00:04:59,460 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,460 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,460 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,460 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-29 00:04:59,460 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-29 00:04:59,461 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-29 00:04:59,461 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-29 00:04:59,461 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-29 00:04:59,461 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-29 00:04:59,461 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-29 00:04:59,461 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-29 00:04:59,461 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,462 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,462 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,462 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-29 00:04:59,462 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-29 00:04:59,462 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-29 00:04:59,462 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-29 00:04:59,463 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-29 00:04:59,463 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-29 00:04:59,463 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-29 00:04:59,463 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-29 00:04:59,463 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,463 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,463 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,464 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-29 00:04:59,464 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-29 00:04:59,464 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-29 00:04:59,464 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-29 00:04:59,464 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-29 00:04:59,464 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-29 00:04:59,464 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-29 00:04:59,465 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-29 00:04:59,465 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,465 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,465 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,465 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-29 00:04:59,465 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-29 00:04:59,466 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-29 00:04:59,466 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-29 00:04:59,466 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-29 00:04:59,466 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-29 00:04:59,466 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-29 00:04:59,466 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-29 00:04:59,466 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,467 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,467 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-29 00:04:59,467 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-29 00:04:59,467 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-29 00:04:59,467 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-29 00:04:59,467 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-29 00:04:59,468 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-29 00:04:59,468 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-29 00:04:59,468 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-29 00:04:59,468 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,468 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,468 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-29 00:04:59,468 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 00:04:59,469 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-29 00:04:59,469 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-29 00:04:59,469 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-29 00:04:59,469 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-29 00:04:59,469 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-29 00:04:59,469 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,469 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,470 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse22 (<= (+ 49 ~a12~0) 0))) (let ((.cse1 (<= ~a15~0 8)) (.cse4 (not (= 5 ~a15~0))) (.cse5 (= 7 ~a15~0)) (.cse17 (<= 9 ~a21~0)) (.cse9 (<= ~a15~0 7)) (.cse2 (<= 20 ~a12~0)) (.cse3 (<= 10 ~a21~0)) (.cse15 (<= ~a12~0 599999)) (.cse16 (<= 95382 ~a12~0)) (.cse11 (+ ~a12~0 43)) (.cse20 (<= 8 ~a21~0)) (.cse21 (<= ~a21~0 8)) (.cse13 (= ~a21~0 9)) (.cse12 (= ~a15~0 9)) (.cse26 (< 80 ~a12~0)) (.cse14 (not (= 5 ULTIMATE.start_calculate_output_~input))) (.cse25 (<= ~a12~0 586307)) (.cse18 (<= ~a12~0 11)) (.cse8 (<= 7 ~a21~0)) (.cse10 (<= ~a21~0 7)) (.cse23 (<= 0 (+ 41 ~a12~0))) (.cse19 (= ~a15~0 8)) (.cse6 (let ((.cse27 (<= ~a15~0 6))) (or (and .cse0 .cse27) (and .cse27 .cse22)))) (.cse7 (<= ~a21~0 6)) (.cse24 (<= (+ ~a12~0 9352) 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= 103531 ~a12~0) .cse0 .cse5) (and .cse6 .cse0) (and .cse0 .cse1 .cse2 .cse7) (and .cse0 .cse8 .cse9 .cse10) (and (<= .cse11 0) .cse0 .cse12 .cse3) (and .cse0 .cse1 .cse9 .cse3 .cse4) (and (<= ~a12~0 80) .cse0 .cse13 (< 11 ~a12~0) .cse5) (and .cse0 .cse13 .cse12 .cse14 .cse15 .cse16) (and .cse17 .cse0 .cse9 .cse16) (and .cse18 .cse0 .cse3 .cse19) (and (<= ~a12~0 73282) .cse0 .cse2 .cse20 .cse21 .cse19) (and .cse17 .cse0 .cse2 (<= ~a12~0 76) .cse19) (and .cse0 .cse9 .cse22 .cse21) (and .cse18 .cse0 .cse12 .cse3 .cse23) (and .cse0 .cse9 (<= (+ ~a12~0 42) 0) .cse20 .cse21) (and .cse0 .cse12 .cse24 .cse20 .cse21) (and .cse18 .cse0 .cse7 .cse9 .cse23) (and .cse0 .cse8 .cse12 .cse2 .cse21 .cse25) (and .cse0 .cse12 .cse26 .cse3 .cse15) (and .cse0 .cse12 .cse21 .cse25 .cse16) (and .cse0 .cse8 .cse12 .cse21 .cse15 .cse16) (and .cse18 .cse0 .cse13 .cse14 (< 0 .cse11) .cse19) (and .cse18 .cse0 .cse12 .cse20 .cse21 .cse23) (and .cse0 .cse13 .cse12 .cse26 .cse14 .cse25) (and .cse0 .cse8 .cse10 .cse22 .cse19) (and .cse18 .cse0 .cse8 .cse10 .cse23 .cse19) (and .cse6 .cse7 .cse24)))) [2021-10-29 00:04:59,470 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-29 00:04:59,470 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-29 00:04:59,470 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-29 00:04:59,471 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-29 00:04:59,471 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-29 00:04:59,471 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-29 00:04:59,471 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-29 00:04:59,471 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-29 00:04:59,471 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,472 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,472 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-29 00:04:59,472 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-29 00:04:59,472 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-29 00:04:59,472 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-29 00:04:59,472 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-29 00:04:59,472 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-29 00:04:59,473 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-29 00:04:59,473 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-29 00:04:59,473 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,473 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,473 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 00:04:59,473 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-29 00:04:59,474 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-29 00:04:59,474 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-29 00:04:59,474 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-29 00:04:59,474 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-29 00:04:59,474 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-29 00:04:59,474 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,474 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,475 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-29 00:04:59,475 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,475 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-29 00:04:59,475 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse22 (<= (+ 49 ~a12~0) 0))) (let ((.cse1 (<= ~a15~0 8)) (.cse4 (not (= 5 ~a15~0))) (.cse5 (= 7 ~a15~0)) (.cse17 (<= 9 ~a21~0)) (.cse9 (<= ~a15~0 7)) (.cse2 (<= 20 ~a12~0)) (.cse3 (<= 10 ~a21~0)) (.cse15 (<= ~a12~0 599999)) (.cse16 (<= 95382 ~a12~0)) (.cse11 (+ ~a12~0 43)) (.cse20 (<= 8 ~a21~0)) (.cse21 (<= ~a21~0 8)) (.cse13 (= ~a21~0 9)) (.cse12 (= ~a15~0 9)) (.cse26 (< 80 ~a12~0)) (.cse14 (not (= 5 ULTIMATE.start_calculate_output_~input))) (.cse25 (<= ~a12~0 586307)) (.cse18 (<= ~a12~0 11)) (.cse8 (<= 7 ~a21~0)) (.cse10 (<= ~a21~0 7)) (.cse23 (<= 0 (+ 41 ~a12~0))) (.cse19 (= ~a15~0 8)) (.cse6 (let ((.cse27 (<= ~a15~0 6))) (or (and .cse0 .cse27) (and .cse27 .cse22)))) (.cse7 (<= ~a21~0 6)) (.cse24 (<= (+ ~a12~0 9352) 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= 103531 ~a12~0) .cse0 .cse5) (and .cse6 .cse0) (and .cse0 .cse1 .cse2 .cse7) (and .cse0 .cse8 .cse9 .cse10) (and (<= .cse11 0) .cse0 .cse12 .cse3) (and .cse0 .cse1 .cse9 .cse3 .cse4) (and (<= ~a12~0 80) .cse0 .cse13 (< 11 ~a12~0) .cse5) (and .cse0 .cse13 .cse12 .cse14 .cse15 .cse16) (and .cse17 .cse0 .cse9 .cse16) (and .cse18 .cse0 .cse3 .cse19) (and (<= ~a12~0 73282) .cse0 .cse2 .cse20 .cse21 .cse19) (and .cse17 .cse0 .cse2 (<= ~a12~0 76) .cse19) (and .cse0 .cse9 .cse22 .cse21) (and .cse18 .cse0 .cse12 .cse3 .cse23) (and .cse0 .cse9 (<= (+ ~a12~0 42) 0) .cse20 .cse21) (and .cse0 .cse12 .cse24 .cse20 .cse21) (and .cse18 .cse0 .cse7 .cse9 .cse23) (and .cse0 .cse8 .cse12 .cse2 .cse21 .cse25) (and .cse0 .cse12 .cse26 .cse3 .cse15) (and .cse0 .cse12 .cse21 .cse25 .cse16) (and .cse0 .cse8 .cse12 .cse21 .cse15 .cse16) (and .cse18 .cse0 .cse13 .cse14 (< 0 .cse11) .cse19) (and .cse18 .cse0 .cse12 .cse20 .cse21 .cse23) (and .cse0 .cse13 .cse12 .cse26 .cse14 .cse25) (and .cse0 .cse8 .cse10 .cse22 .cse19) (and .cse18 .cse0 .cse8 .cse10 .cse23 .cse19) (and .cse6 .cse7 .cse24)))) [2021-10-29 00:04:59,476 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-29 00:04:59,476 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-29 00:04:59,476 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-29 00:04:59,476 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-29 00:04:59,476 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-29 00:04:59,476 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-29 00:04:59,477 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-29 00:04:59,477 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-29 00:04:59,477 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-29 00:04:59,477 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,477 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,477 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-29 00:04:59,477 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-29 00:04:59,478 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-29 00:04:59,478 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-29 00:04:59,478 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-29 00:04:59,482 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:59,483 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:04:59,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:04:59 BoogieIcfgContainer [2021-10-29 00:04:59,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:04:59,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:04:59,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:04:59,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:04:59,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:40" (3/4) ... [2021-10-29 00:04:59,526 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 00:04:59,551 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 00:04:59,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 00:04:59,555 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:04:59,556 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:04:59,698 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:04:59,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:04:59,700 INFO L168 Benchmark]: Toolchain (without parser) took 81680.58 ms. Allocated memory was 111.1 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 62.1 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 626.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:59,700 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 111.1 MB. Free memory is still 81.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:04:59,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.08 ms. Allocated memory is still 111.1 MB. Free memory was 61.9 MB in the beginning and 63.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:59,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.28 ms. Allocated memory is still 111.1 MB. Free memory was 63.5 MB in the beginning and 53.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:59,702 INFO L168 Benchmark]: Boogie Preprocessor took 137.35 ms. Allocated memory is still 111.1 MB. Free memory was 53.8 MB in the beginning and 48.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:59,702 INFO L168 Benchmark]: RCFGBuilder took 1635.42 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 48.0 MB in the beginning and 98.9 MB in the end (delta: -50.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:59,703 INFO L168 Benchmark]: TraceAbstraction took 78813.39 ms. Allocated memory was 151.0 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 98.9 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 756.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:59,703 INFO L168 Benchmark]: Witness Printer took 176.18 ms. Allocated memory is still 2.4 GB. Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:04:59,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 111.1 MB. Free memory is still 81.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 749.08 ms. Allocated memory is still 111.1 MB. Free memory was 61.9 MB in the beginning and 63.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 157.28 ms. Allocated memory is still 111.1 MB. Free memory was 63.5 MB in the beginning and 53.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 137.35 ms. Allocated memory is still 111.1 MB. Free memory was 53.8 MB in the beginning and 48.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1635.42 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 48.0 MB in the beginning and 98.9 MB in the end (delta: -50.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 78813.39 ms. Allocated memory was 151.0 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 98.9 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 756.4 MB. Max. memory is 16.1 GB. * Witness Printer took 176.18 ms. Allocated memory is still 2.4 GB. Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 119]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 78.7s, OverallIterations: 27, TraceHistogramMax: 22, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3112 SDtfs, 3809 SDslu, 281 SDs, 0 SdLazy, 17971 SolverSat, 1307 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7616 GetRequests, 7533 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5878occurred in iteration=22, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 27 MinimizatonAttempts, 5938 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 133 NumberOfFragments, 979 HoareAnnotationTreeSize, 3 FomulaSimplifications, 18074 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4596 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 35.2s InterpolantComputationTime, 32170 NumberOfCodeBlocks, 32170 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 32133 ConstructedInterpolants, 0 QuantifiedInterpolants, 87093 SizeOfPredicates, 0 NumberOfNonLiveVariables, 9621 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 37 InterpolantComputations, 25 PerfectInterpolantSequences, 137158/139492 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && !(5 == a15)) || ((103531 <= a12 && a24 == 1) && 7 == a15)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6)) || (((a24 == 1 && 7 <= a21) && a15 <= 7) && a21 <= 7)) || (((a12 + 43 <= 0 && a24 == 1) && a15 == 9) && 10 <= a21)) || ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) && !(5 == a15))) || ((((a12 <= 80 && a24 == 1) && a21 == 9) && 11 < a12) && 7 == a15)) || (((((a24 == 1 && a21 == 9) && a15 == 9) && !(5 == input)) && a12 <= 599999) && 95382 <= a12)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 95382 <= a12)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && a15 == 8)) || (((((a12 <= 73282 && a24 == 1) && 20 <= a12) && 8 <= a21) && a21 <= 8) && a15 == 8)) || ((((9 <= a21 && a24 == 1) && 20 <= a12) && a12 <= 76) && a15 == 8)) || (((a24 == 1 && a15 <= 7) && 49 + a12 <= 0) && a21 <= 8)) || ((((a12 <= 11 && a24 == 1) && a15 == 9) && 10 <= a21) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 <= 7) && a12 + 42 <= 0) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && a15 == 9) && a12 + 9352 <= 0) && 8 <= a21) && a21 <= 8)) || ((((a12 <= 11 && a24 == 1) && a21 <= 6) && a15 <= 7) && 0 <= 41 + a12)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && 20 <= a12) && a21 <= 8) && a12 <= 586307)) || ((((a24 == 1 && a15 == 9) && 80 < a12) && 10 <= a21) && a12 <= 599999)) || ((((a24 == 1 && a15 == 9) && a21 <= 8) && a12 <= 586307) && 95382 <= a12)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && a21 <= 8) && a12 <= 599999) && 95382 <= a12)) || (((((a12 <= 11 && a24 == 1) && a21 == 9) && !(5 == input)) && 0 < a12 + 43) && a15 == 8)) || (((((a12 <= 11 && a24 == 1) && a15 == 9) && 8 <= a21) && a21 <= 8) && 0 <= 41 + a12)) || (((((a24 == 1 && a21 == 9) && a15 == 9) && 80 < a12) && !(5 == input)) && a12 <= 586307)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((((a12 <= 11 && a24 == 1) && 7 <= a21) && a21 <= 7) && 0 <= 41 + a12) && a15 == 8)) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6) && a12 + 9352 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && !(5 == a15)) || ((103531 <= a12 && a24 == 1) && 7 == a15)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6)) || (((a24 == 1 && 7 <= a21) && a15 <= 7) && a21 <= 7)) || (((a12 + 43 <= 0 && a24 == 1) && a15 == 9) && 10 <= a21)) || ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) && !(5 == a15))) || ((((a12 <= 80 && a24 == 1) && a21 == 9) && 11 < a12) && 7 == a15)) || (((((a24 == 1 && a21 == 9) && a15 == 9) && !(5 == input)) && a12 <= 599999) && 95382 <= a12)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 95382 <= a12)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && a15 == 8)) || (((((a12 <= 73282 && a24 == 1) && 20 <= a12) && 8 <= a21) && a21 <= 8) && a15 == 8)) || ((((9 <= a21 && a24 == 1) && 20 <= a12) && a12 <= 76) && a15 == 8)) || (((a24 == 1 && a15 <= 7) && 49 + a12 <= 0) && a21 <= 8)) || ((((a12 <= 11 && a24 == 1) && a15 == 9) && 10 <= a21) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 <= 7) && a12 + 42 <= 0) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && a15 == 9) && a12 + 9352 <= 0) && 8 <= a21) && a21 <= 8)) || ((((a12 <= 11 && a24 == 1) && a21 <= 6) && a15 <= 7) && 0 <= 41 + a12)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && 20 <= a12) && a21 <= 8) && a12 <= 586307)) || ((((a24 == 1 && a15 == 9) && 80 < a12) && 10 <= a21) && a12 <= 599999)) || ((((a24 == 1 && a15 == 9) && a21 <= 8) && a12 <= 586307) && 95382 <= a12)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && a21 <= 8) && a12 <= 599999) && 95382 <= a12)) || (((((a12 <= 11 && a24 == 1) && a21 == 9) && !(5 == input)) && 0 < a12 + 43) && a15 == 8)) || (((((a12 <= 11 && a24 == 1) && a15 == 9) && 8 <= a21) && a21 <= 8) && 0 <= 41 + a12)) || (((((a24 == 1 && a21 == 9) && a15 == 9) && 80 < a12) && !(5 == input)) && a12 <= 586307)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((((a12 <= 11 && a24 == 1) && 7 <= a21) && a21 <= 7) && 0 <= 41 + a12) && a15 == 8)) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6) && a12 + 9352 <= 0) RESULT: Ultimate proved your program to be correct! [2021-10-29 00:04:59,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13123fec-2a34-4b7d-b96d-112e1baafd6a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...