./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y --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 9a49aea6b3c1edfc7fe3f8f7bab6422e16330d8432eb730cabe992a1ced0cbc2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:32:49,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:32:49,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:32:49,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:32:49,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:32:49,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:32:49,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:32:49,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:32:49,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:32:49,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:32:49,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:32:49,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:32:49,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:32:49,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:32:49,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:32:49,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:32:49,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:32:49,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:32:49,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:32:49,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:32:49,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:32:49,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:32:49,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:32:49,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:32:49,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:32:49,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:32:49,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:32:49,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:32:49,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:32:49,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:32:49,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:32:49,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:32:49,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:32:49,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:32:49,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:32:49,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:32:49,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:32:49,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:32:49,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:32:49,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:32:49,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:32:49,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:32:49,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:32:49,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:32:49,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:32:49,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:32:49,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:32:49,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:32:49,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:32:49,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:32:49,899 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:32:49,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:32:49,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:32:49,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:32:49,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:32:49,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:32:49,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:32:49,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:32:49,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:32:49,906 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:32:49,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:32:49,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:32:49,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:32:49,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:32:49,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:32:49,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:32:49,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:32:49,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:32:49,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:32:49,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:32:49,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:32:49,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:32:49,914 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:32:49,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:32:49,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:32:49,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:32:49,915 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_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a49aea6b3c1edfc7fe3f8f7bab6422e16330d8432eb730cabe992a1ced0cbc2 [2021-11-13 18:32:50,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:32:50,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:32:50,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:32:50,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:32:50,366 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:32:50,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/eca-rers2012/Problem01_label03.c [2021-11-13 18:32:50,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/data/86c759489/717ab64aba9d4b6bb313caf51552c390/FLAG7edbe7c84 [2021-11-13 18:32:51,288 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:32:51,289 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/sv-benchmarks/c/eca-rers2012/Problem01_label03.c [2021-11-13 18:32:51,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/data/86c759489/717ab64aba9d4b6bb313caf51552c390/FLAG7edbe7c84 [2021-11-13 18:32:51,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/data/86c759489/717ab64aba9d4b6bb313caf51552c390 [2021-11-13 18:32:51,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:32:51,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:32:51,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:32:51,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:32:51,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:32:51,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:32:51" (1/1) ... [2021-11-13 18:32:51,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73014873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:51, skipping insertion in model container [2021-11-13 18:32:51,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:32:51" (1/1) ... [2021-11-13 18:32:51,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:32:51,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:32:52,236 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_2ebb5678-8446-43f9-8afb-917126d45d76/sv-benchmarks/c/eca-rers2012/Problem01_label03.c[21586,21599] [2021-11-13 18:32:52,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:32:52,283 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:32:52,448 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_2ebb5678-8446-43f9-8afb-917126d45d76/sv-benchmarks/c/eca-rers2012/Problem01_label03.c[21586,21599] [2021-11-13 18:32:52,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:32:52,504 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:32:52,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52 WrapperNode [2021-11-13 18:32:52,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:32:52,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:32:52,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:32:52,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:32:52,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:32:52,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:32:52,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:32:52,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:32:52,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:32:52,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:32:52,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:32:52,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:32:52,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (1/1) ... [2021-11-13 18:32:52,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:32:52,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:32:52,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:32:52,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:32:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:32:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:32:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:32:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:32:54,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:32:54,390 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:32:54,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:32:54 BoogieIcfgContainer [2021-11-13 18:32:54,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:32:54,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:32:54,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:32:54,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:32:54,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:32:51" (1/3) ... [2021-11-13 18:32:54,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bab8f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:32:54, skipping insertion in model container [2021-11-13 18:32:54,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:32:52" (2/3) ... [2021-11-13 18:32:54,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bab8f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:32:54, skipping insertion in model container [2021-11-13 18:32:54,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:32:54" (3/3) ... [2021-11-13 18:32:54,444 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label03.c [2021-11-13 18:32:54,451 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:32:54,452 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:32:54,520 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:32:54,529 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:32:54,530 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:32:54,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:54,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-13 18:32:54,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:54,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:32:54,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:32:54,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:54,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1437018794, now seen corresponding path program 1 times [2021-11-13 18:32:54,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:54,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864484936] [2021-11-13 18:32:54,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:54,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:55,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:55,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864484936] [2021-11-13 18:32:55,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864484936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:55,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:55,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:32:55,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505356409] [2021-11-13 18:32:55,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:55,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:32:55,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:55,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:32:55,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:55,303 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 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 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:56,296 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-11-13 18:32:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:32:56,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2021-11-13 18:32:56,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:56,332 INFO L225 Difference]: With dead ends: 528 [2021-11-13 18:32:56,333 INFO L226 Difference]: Without dead ends: 266 [2021-11-13 18:32:56,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:56,351 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 56 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 630.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.80ms SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 833.96ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:56,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 66 Invalid, 518 Unknown, 0 Unchecked, 18.80ms Time], IncrementalHoareTripleChecker [130 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 833.96ms Time] [2021-11-13 18:32:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-13 18:32:56,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-11-13 18:32:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:56,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2021-11-13 18:32:56,470 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 129 [2021-11-13 18:32:56,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:56,475 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2021-11-13 18:32:56,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2021-11-13 18:32:56,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-13 18:32:56,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:56,496 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:32:56,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:32:56,497 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:32:56,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:56,502 INFO L85 PathProgramCache]: Analyzing trace with hash -948534658, now seen corresponding path program 1 times [2021-11-13 18:32:56,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:56,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986352284] [2021-11-13 18:32:56,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:56,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:56,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:56,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:56,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986352284] [2021-11-13 18:32:56,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986352284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:56,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:56,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:32:56,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678987168] [2021-11-13 18:32:56,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:56,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:32:56,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:56,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:32:56,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:56,663 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:57,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:57,265 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2021-11-13 18:32:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:32:57,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2021-11-13 18:32:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:57,271 INFO L225 Difference]: With dead ends: 792 [2021-11-13 18:32:57,271 INFO L226 Difference]: Without dead ends: 528 [2021-11-13 18:32:57,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:57,274 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 458.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.20ms SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 563.55ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:57,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 10.20ms Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 563.55ms Time] [2021-11-13 18:32:57,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-13 18:32:57,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-11-13 18:32:57,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3681214421252372) internal successors, (721), 527 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:57,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 721 transitions. [2021-11-13 18:32:57,330 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 721 transitions. Word has length 134 [2021-11-13 18:32:57,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:57,334 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 721 transitions. [2021-11-13 18:32:57,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:57,335 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 721 transitions. [2021-11-13 18:32:57,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-13 18:32:57,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:57,339 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:32:57,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:32:57,340 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:32:57,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:57,343 INFO L85 PathProgramCache]: Analyzing trace with hash -450807864, now seen corresponding path program 1 times [2021-11-13 18:32:57,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:57,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048894528] [2021-11-13 18:32:57,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:57,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:57,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:57,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048894528] [2021-11-13 18:32:57,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048894528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:57,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:57,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:32:57,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260327590] [2021-11-13 18:32:57,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:57,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:32:57,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:57,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:32:57,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:57,428 INFO L87 Difference]: Start difference. First operand 528 states and 721 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:58,046 INFO L93 Difference]: Finished difference Result 1447 states and 1979 transitions. [2021-11-13 18:32:58,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:32:58,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2021-11-13 18:32:58,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:58,057 INFO L225 Difference]: With dead ends: 1447 [2021-11-13 18:32:58,057 INFO L226 Difference]: Without dead ends: 921 [2021-11-13 18:32:58,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:58,066 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 456.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.37ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 570.74ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:58,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 419 Unknown, 0 Unchecked, 5.37ms Time], IncrementalHoareTripleChecker [91 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 570.74ms Time] [2021-11-13 18:32:58,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-13 18:32:58,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-11-13 18:32:58,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.3434782608695652) internal successors, (1236), 920 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1236 transitions. [2021-11-13 18:32:58,117 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1236 transitions. Word has length 138 [2021-11-13 18:32:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:58,118 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1236 transitions. [2021-11-13 18:32:58,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:58,119 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1236 transitions. [2021-11-13 18:32:58,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-13 18:32:58,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:58,131 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:32:58,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:32:58,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:32:58,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash -583688942, now seen corresponding path program 1 times [2021-11-13 18:32:58,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:58,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101198914] [2021-11-13 18:32:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:58,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:58,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:58,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:58,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101198914] [2021-11-13 18:32:58,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101198914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:58,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:58,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:32:58,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460081774] [2021-11-13 18:32:58,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:58,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:32:58,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:58,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:32:58,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:58,309 INFO L87 Difference]: Start difference. First operand 921 states and 1236 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) [2021-11-13 18:32:58,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:58,948 INFO L93 Difference]: Finished difference Result 1840 states and 2470 transitions. [2021-11-13 18:32:58,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:32:58,949 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 142 [2021-11-13 18:32:58,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:58,956 INFO L225 Difference]: With dead ends: 1840 [2021-11-13 18:32:58,956 INFO L226 Difference]: Without dead ends: 921 [2021-11-13 18:32:58,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:58,959 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 129 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 494.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.64ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 597.20ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:58,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 61 Invalid, 354 Unknown, 0 Unchecked, 4.64ms Time], IncrementalHoareTripleChecker [44 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 597.20ms Time] [2021-11-13 18:32:58,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-13 18:32:58,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2021-11-13 18:32:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.3304347826086957) internal successors, (1224), 920 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1224 transitions. [2021-11-13 18:32:58,996 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1224 transitions. Word has length 142 [2021-11-13 18:32:58,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:58,997 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1224 transitions. [2021-11-13 18:32:58,997 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) [2021-11-13 18:32:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1224 transitions. [2021-11-13 18:32:59,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-13 18:32:59,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:59,002 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:32:59,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:32:59,003 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:32:59,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:59,003 INFO L85 PathProgramCache]: Analyzing trace with hash 940831159, now seen corresponding path program 1 times [2021-11-13 18:32:59,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:59,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959943987] [2021-11-13 18:32:59,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:59,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:59,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:59,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959943987] [2021-11-13 18:32:59,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959943987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:59,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:59,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:32:59,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387070423] [2021-11-13 18:32:59,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:59,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:32:59,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:59,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:32:59,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:59,079 INFO L87 Difference]: Start difference. First operand 921 states and 1224 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 2 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) [2021-11-13 18:32:59,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:32:59,659 INFO L93 Difference]: Finished difference Result 2233 states and 2923 transitions. [2021-11-13 18:32:59,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:32:59,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 2 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 144 [2021-11-13 18:32:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:32:59,671 INFO L225 Difference]: With dead ends: 2233 [2021-11-13 18:32:59,671 INFO L226 Difference]: Without dead ends: 1314 [2021-11-13 18:32:59,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:32:59,679 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 411.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.26ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 526.94ms IncrementalHoareTripleChecker+Time [2021-11-13 18:32:59,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 62 Invalid, 373 Unknown, 0 Unchecked, 5.26ms Time], IncrementalHoareTripleChecker [49 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 526.94ms Time] [2021-11-13 18:32:59,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2021-11-13 18:32:59,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1183. [2021-11-13 18:32:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2825719120135364) internal successors, (1516), 1182 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:32:59,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1516 transitions. [2021-11-13 18:32:59,764 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1516 transitions. Word has length 144 [2021-11-13 18:32:59,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:32:59,765 INFO L470 AbstractCegarLoop]: Abstraction has 1183 states and 1516 transitions. [2021-11-13 18:32:59,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 2 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) [2021-11-13 18:32:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1516 transitions. [2021-11-13 18:32:59,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-13 18:32:59,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:32:59,779 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:32:59,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:32:59,780 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:32:59,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:32:59,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1745266705, now seen corresponding path program 1 times [2021-11-13 18:32:59,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:32:59,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510133294] [2021-11-13 18:32:59,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:32:59,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:32:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:32:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:32:59,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:32:59,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510133294] [2021-11-13 18:32:59,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510133294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:32:59,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:32:59,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:32:59,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708799459] [2021-11-13 18:32:59,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:32:59,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:32:59,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:32:59,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:32:59,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:32:59,919 INFO L87 Difference]: Start difference. First operand 1183 states and 1516 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:00,725 INFO L93 Difference]: Finished difference Result 2757 states and 3471 transitions. [2021-11-13 18:33:00,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:33:00,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2021-11-13 18:33:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:00,738 INFO L225 Difference]: With dead ends: 2757 [2021-11-13 18:33:00,738 INFO L226 Difference]: Without dead ends: 1576 [2021-11-13 18:33:00,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:33:00,744 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 386 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 577.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.13ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 726.80ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:00,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 59 Invalid, 586 Unknown, 0 Unchecked, 8.13ms Time], IncrementalHoareTripleChecker [80 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 726.80ms Time] [2021-11-13 18:33:00,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-13 18:33:00,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-11-13 18:33:00,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2479224376731302) internal successors, (1802), 1444 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:00,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1802 transitions. [2021-11-13 18:33:00,799 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1802 transitions. Word has length 148 [2021-11-13 18:33:00,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:00,802 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1802 transitions. [2021-11-13 18:33:00,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:00,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1802 transitions. [2021-11-13 18:33:00,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-13 18:33:00,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:00,807 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:33:00,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:33:00,808 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:33:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:00,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1830513870, now seen corresponding path program 1 times [2021-11-13 18:33:00,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:00,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749559006] [2021-11-13 18:33:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:00,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:01,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:01,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749559006] [2021-11-13 18:33:01,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749559006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:01,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:01,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:33:01,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129622275] [2021-11-13 18:33:01,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:01,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:01,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:01,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:01,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:01,047 INFO L87 Difference]: Start difference. First operand 1445 states and 1802 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:01,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:01,626 INFO L93 Difference]: Finished difference Result 3019 states and 3739 transitions. [2021-11-13 18:33:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:01,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2021-11-13 18:33:01,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:01,638 INFO L225 Difference]: With dead ends: 3019 [2021-11-13 18:33:01,638 INFO L226 Difference]: Without dead ends: 1576 [2021-11-13 18:33:01,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:01,641 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 419.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.06ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 516.14ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:01,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 193 Invalid, 398 Unknown, 0 Unchecked, 6.06ms Time], IncrementalHoareTripleChecker [42 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 516.14ms Time] [2021-11-13 18:33:01,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-11-13 18:33:01,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2021-11-13 18:33:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2049861495844876) internal successors, (1740), 1444 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:01,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1740 transitions. [2021-11-13 18:33:01,687 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1740 transitions. Word has length 166 [2021-11-13 18:33:01,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:01,687 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 1740 transitions. [2021-11-13 18:33:01,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:01,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1740 transitions. [2021-11-13 18:33:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-13 18:33:01,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:01,694 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:33:01,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:33:01,695 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:33:01,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:01,696 INFO L85 PathProgramCache]: Analyzing trace with hash -721031857, now seen corresponding path program 1 times [2021-11-13 18:33:01,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:01,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250270719] [2021-11-13 18:33:01,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:01,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:02,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:02,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250270719] [2021-11-13 18:33:02,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250270719] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:33:02,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535459337] [2021-11-13 18:33:02,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:02,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:33:02,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:33:02,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:33:02,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:33:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:02,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:33:02,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:33:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-13 18:33:02,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:33:02,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535459337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:02,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:33:02,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-13 18:33:02,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988314684] [2021-11-13 18:33:02,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:02,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:02,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:02,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:33:02,912 INFO L87 Difference]: Start difference. First operand 1445 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:03,444 INFO L93 Difference]: Finished difference Result 2233 states and 2642 transitions. [2021-11-13 18:33:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:03,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 179 [2021-11-13 18:33:03,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:03,460 INFO L225 Difference]: With dead ends: 2233 [2021-11-13 18:33:03,460 INFO L226 Difference]: Without dead ends: 2231 [2021-11-13 18:33:03,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:33:03,463 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 395.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.27ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 489.65ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:03,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 4.27ms Time], IncrementalHoareTripleChecker [15 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 489.65ms Time] [2021-11-13 18:33:03,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2021-11-13 18:33:03,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2021-11-13 18:33:03,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.1838565022421526) internal successors, (2640), 2230 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2640 transitions. [2021-11-13 18:33:03,531 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2640 transitions. Word has length 179 [2021-11-13 18:33:03,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:03,532 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 2640 transitions. [2021-11-13 18:33:03,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:03,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2640 transitions. [2021-11-13 18:33:03,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-13 18:33:03,540 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:03,540 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:33:03,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:33:03,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:33:03,758 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:33:03,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1501638180, now seen corresponding path program 1 times [2021-11-13 18:33:03,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:03,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463439867] [2021-11-13 18:33:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:03,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-13 18:33:03,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:03,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463439867] [2021-11-13 18:33:03,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463439867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:03,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:03,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:33:03,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380072924] [2021-11-13 18:33:03,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:03,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:03,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:03,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:03,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:03,825 INFO L87 Difference]: Start difference. First operand 2231 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:04,422 INFO L93 Difference]: Finished difference Result 4853 states and 5762 transitions. [2021-11-13 18:33:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:04,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 186 [2021-11-13 18:33:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:04,437 INFO L225 Difference]: With dead ends: 4853 [2021-11-13 18:33:04,438 INFO L226 Difference]: Without dead ends: 2362 [2021-11-13 18:33:04,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:04,442 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 136 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 426.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.18ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 529.36ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:04,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 192 Invalid, 383 Unknown, 0 Unchecked, 6.18ms Time], IncrementalHoareTripleChecker [65 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 529.36ms Time] [2021-11-13 18:33:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-11-13 18:33:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2021-11-13 18:33:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2361 states have (on average 1.095722151630665) internal successors, (2587), 2361 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2587 transitions. [2021-11-13 18:33:04,515 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2587 transitions. Word has length 186 [2021-11-13 18:33:04,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:04,516 INFO L470 AbstractCegarLoop]: Abstraction has 2362 states and 2587 transitions. [2021-11-13 18:33:04,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:04,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2587 transitions. [2021-11-13 18:33:04,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-13 18:33:04,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:04,525 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:33:04,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:33:04,525 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:33:04,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:04,526 INFO L85 PathProgramCache]: Analyzing trace with hash -73226021, now seen corresponding path program 1 times [2021-11-13 18:33:04,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:04,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037071093] [2021-11-13 18:33:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:04,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-13 18:33:04,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:04,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037071093] [2021-11-13 18:33:04,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037071093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:04,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:33:04,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:33:04,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831027652] [2021-11-13 18:33:04,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:04,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:04,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:04,614 INFO L87 Difference]: Start difference. First operand 2362 states and 2587 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:05,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:05,161 INFO L93 Difference]: Finished difference Result 5377 states and 5911 transitions. [2021-11-13 18:33:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:05,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 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 193 [2021-11-13 18:33:05,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:05,179 INFO L225 Difference]: With dead ends: 5377 [2021-11-13 18:33:05,179 INFO L226 Difference]: Without dead ends: 2886 [2021-11-13 18:33:05,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:33:05,185 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 97 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 379.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.30ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 484.54ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:05,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 50 Invalid, 329 Unknown, 0 Unchecked, 4.30ms Time], IncrementalHoareTripleChecker [31 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 484.54ms Time] [2021-11-13 18:33:05,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-11-13 18:33:05,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2021-11-13 18:33:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2885 states have (on average 1.0856152512998267) internal successors, (3132), 2885 states have internal predecessors, (3132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3132 transitions. [2021-11-13 18:33:05,288 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3132 transitions. Word has length 193 [2021-11-13 18:33:05,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:05,289 INFO L470 AbstractCegarLoop]: Abstraction has 2886 states and 3132 transitions. [2021-11-13 18:33:05,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3132 transitions. [2021-11-13 18:33:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-13 18:33:05,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:05,299 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:33:05,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:33:05,300 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:33:05,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:05,300 INFO L85 PathProgramCache]: Analyzing trace with hash -830677062, now seen corresponding path program 1 times [2021-11-13 18:33:05,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:05,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784106756] [2021-11-13 18:33:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:05,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 18:33:05,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:05,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784106756] [2021-11-13 18:33:05,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784106756] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:33:05,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847407261] [2021-11-13 18:33:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:05,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:33:05,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:33:05,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:33:05,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:33:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:05,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:33:05,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:33:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-13 18:33:06,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:33:06,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847407261] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:06,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:33:06,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-13 18:33:06,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659293185] [2021-11-13 18:33:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:06,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:06,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:33:06,272 INFO L87 Difference]: Start difference. First operand 2886 states and 3132 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:06,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:06,819 INFO L93 Difference]: Finished difference Result 5770 states and 6262 transitions. [2021-11-13 18:33:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:06,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 [2021-11-13 18:33:06,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:06,841 INFO L225 Difference]: With dead ends: 5770 [2021-11-13 18:33:06,841 INFO L226 Difference]: Without dead ends: 2886 [2021-11-13 18:33:06,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:33:06,847 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 386.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.21ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 478.08ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:06,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 169 Invalid, 334 Unknown, 0 Unchecked, 5.21ms Time], IncrementalHoareTripleChecker [33 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 478.08ms Time] [2021-11-13 18:33:06,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2021-11-13 18:33:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2755. [2021-11-13 18:33:06,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 1.0718954248366013) internal successors, (2952), 2754 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 2952 transitions. [2021-11-13 18:33:06,937 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 2952 transitions. Word has length 206 [2021-11-13 18:33:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:06,938 INFO L470 AbstractCegarLoop]: Abstraction has 2755 states and 2952 transitions. [2021-11-13 18:33:06,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 2952 transitions. [2021-11-13 18:33:06,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-13 18:33:06,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:06,952 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:33:06,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:33:07,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-13 18:33:07,173 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:33:07,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:07,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1798539416, now seen corresponding path program 1 times [2021-11-13 18:33:07,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:07,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543022500] [2021-11-13 18:33:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:07,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:07,296 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 109 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:33:07,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:07,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543022500] [2021-11-13 18:33:07,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543022500] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:33:07,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100772262] [2021-11-13 18:33:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:07,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:33:07,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:33:07,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:33:07,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:33:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:07,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:33:07,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:33:08,023 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-13 18:33:08,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:33:08,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100772262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:08,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:33:08,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-13 18:33:08,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122301136] [2021-11-13 18:33:08,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:08,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:08,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:08,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:08,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:08,028 INFO L87 Difference]: Start difference. First operand 2755 states and 2952 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:08,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:08,490 INFO L93 Difference]: Finished difference Result 2757 states and 2953 transitions. [2021-11-13 18:33:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:08,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 [2021-11-13 18:33:08,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:08,507 INFO L225 Difference]: With dead ends: 2757 [2021-11-13 18:33:08,507 INFO L226 Difference]: Without dead ends: 2755 [2021-11-13 18:33:08,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:33:08,510 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 337.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.37ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 420.93ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:08,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 30 Invalid, 305 Unknown, 0 Unchecked, 5.37ms Time], IncrementalHoareTripleChecker [16 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 420.93ms Time] [2021-11-13 18:33:08,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2021-11-13 18:33:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1838. [2021-11-13 18:33:08,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.075666848121938) internal successors, (1976), 1837 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:08,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1976 transitions. [2021-11-13 18:33:08,576 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1976 transitions. Word has length 209 [2021-11-13 18:33:08,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:08,576 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 1976 transitions. [2021-11-13 18:33:08,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:08,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1976 transitions. [2021-11-13 18:33:08,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-13 18:33:08,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:33:08,585 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:33:08,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:33:08,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-13 18:33:08,801 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:33:08,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:33:08,801 INFO L85 PathProgramCache]: Analyzing trace with hash 759412018, now seen corresponding path program 1 times [2021-11-13 18:33:08,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:33:08,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514036374] [2021-11-13 18:33:08,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:08,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:33:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 99 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-13 18:33:08,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:33:08,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514036374] [2021-11-13 18:33:08,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514036374] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:33:08,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83573544] [2021-11-13 18:33:08,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:33:08,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:33:08,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:33:08,909 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:33:08,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 18:33:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:33:09,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:33:09,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:33:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-13 18:33:09,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:33:09,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83573544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:33:09,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:33:09,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-13 18:33:09,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99948687] [2021-11-13 18:33:09,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:33:09,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:33:09,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:33:09,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:33:09,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:33:09,579 INFO L87 Difference]: Start difference. First operand 1838 states and 1976 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:33:10,037 INFO L93 Difference]: Finished difference Result 1838 states and 1976 transitions. [2021-11-13 18:33:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:33:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 215 [2021-11-13 18:33:10,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:33:10,039 INFO L225 Difference]: With dead ends: 1838 [2021-11-13 18:33:10,039 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:33:10,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:33:10,043 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 10 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 333.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 421.06ms IncrementalHoareTripleChecker+Time [2021-11-13 18:33:10,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 168 Invalid, 315 Unknown, 0 Unchecked, 5.34ms Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 421.06ms Time] [2021-11-13 18:33:10,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:33:10,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:33:10,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:10,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:33:10,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 215 [2021-11-13 18:33:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:33:10,046 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:33:10,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:33:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:33:10,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:33:10,050 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:33:10,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:33:10,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-13 18:33:10,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:33:10,958 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-11-13 18:33:10,959 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-11-13 18:33:10,959 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-11-13 18:33:10,959 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-11-13 18:33:10,959 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-11-13 18:33:10,959 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-11-13 18:33:10,959 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-11-13 18:33:10,960 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-11-13 18:33:10,960 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,960 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,960 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,961 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,961 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-11-13 18:33:10,961 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,962 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,962 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-11-13 18:33:10,962 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-11-13 18:33:10,963 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-11-13 18:33:10,963 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-11-13 18:33:10,963 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-11-13 18:33:10,963 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-11-13 18:33:10,964 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-11-13 18:33:10,964 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-11-13 18:33:10,964 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-11-13 18:33:10,965 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-11-13 18:33:10,965 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-11-13 18:33:10,968 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-11-13 18:33:10,968 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,968 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,968 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,969 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,969 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,969 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-11-13 18:33:10,969 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,969 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-11-13 18:33:10,970 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-11-13 18:33:10,970 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-11-13 18:33:10,970 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-11-13 18:33:10,970 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-11-13 18:33:10,971 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-11-13 18:33:10,971 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-11-13 18:33:10,971 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-11-13 18:33:10,972 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-11-13 18:33:10,972 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-11-13 18:33:10,973 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-11-13 18:33:10,973 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-11-13 18:33:10,973 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-11-13 18:33:10,973 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-11-13 18:33:10,974 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,974 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,974 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,974 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,974 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,975 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,975 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-11-13 18:33:10,975 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-11-13 18:33:10,975 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-11-13 18:33:10,975 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-11-13 18:33:10,976 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-11-13 18:33:10,976 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-11-13 18:33:10,977 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-11-13 18:33:10,977 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-11-13 18:33:10,978 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-11-13 18:33:10,978 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-11-13 18:33:10,978 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-11-13 18:33:10,978 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-11-13 18:33:10,979 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,979 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,979 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,980 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,980 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,980 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,981 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-11-13 18:33:10,981 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-11-13 18:33:10,981 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-11-13 18:33:10,981 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-11-13 18:33:10,981 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-11-13 18:33:10,982 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-11-13 18:33:10,982 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-11-13 18:33:10,982 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-11-13 18:33:10,982 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-11-13 18:33:10,982 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-11-13 18:33:10,983 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,983 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,983 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,983 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,983 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,984 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,984 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-11-13 18:33:10,984 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-11-13 18:33:10,985 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-11-13 18:33:10,985 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-11-13 18:33:10,985 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-11-13 18:33:10,986 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-11-13 18:33:10,986 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-11-13 18:33:10,986 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-11-13 18:33:10,986 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-11-13 18:33:10,986 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-11-13 18:33:10,987 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-11-13 18:33:10,987 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-11-13 18:33:10,987 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-11-13 18:33:10,987 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-11-13 18:33:10,987 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-11-13 18:33:10,988 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,988 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,988 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,988 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,988 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,989 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:33:10,989 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-11-13 18:33:10,989 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-11-13 18:33:10,989 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-11-13 18:33:10,992 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-11-13 18:33:10,993 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-11-13 18:33:10,993 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-11-13 18:33:10,993 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-11-13 18:33:10,993 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-11-13 18:33:10,994 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-11-13 18:33:10,994 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse1 (<= ~a21~0 0)) (.cse0 (<= ~a8~0 13)) (.cse2 (<= ~a16~0 5)) (.cse6 (<= ~a20~0 0)) (.cse7 (= ~a16~0 6)) (.cse9 (<= 14 ~a8~0)) (.cse3 (<= ~a7~0 0)) (.cse4 (= ~a21~0 1)) (.cse8 (= ~a17~0 1)) (.cse5 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2 .cse5) (and .cse6 .cse4 .cse2) (and .cse0 .cse7 .cse1) (and .cse0 .cse4 .cse8 .cse5) (and .cse9 .cse4 .cse2 .cse5) (and .cse7 .cse9 .cse4 .cse5) (and .cse6 .cse7 .cse9 .cse4) (and .cse3 .cse4 .cse8 .cse5))) [2021-11-13 18:33:10,994 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,995 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,995 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,995 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,995 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,995 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-11-13 18:33:10,996 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-11-13 18:33:10,996 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-11-13 18:33:10,996 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-11-13 18:33:10,996 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-11-13 18:33:10,997 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-11-13 18:33:10,997 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-11-13 18:33:10,997 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-11-13 18:33:10,997 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-11-13 18:33:10,997 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-11-13 18:33:10,998 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-11-13 18:33:10,998 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-11-13 18:33:10,998 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:33:10,998 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-11-13 18:33:10,998 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-11-13 18:33:10,999 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,999 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,999 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:10,999 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,000 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,000 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-11-13 18:33:11,000 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-11-13 18:33:11,000 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-11-13 18:33:11,000 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-11-13 18:33:11,001 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-11-13 18:33:11,001 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-11-13 18:33:11,001 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-11-13 18:33:11,001 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-11-13 18:33:11,002 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-11-13 18:33:11,002 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:33:11,002 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,002 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,002 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,003 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,003 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-11-13 18:33:11,003 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,003 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-11-13 18:33:11,003 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-11-13 18:33:11,004 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-11-13 18:33:11,004 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-11-13 18:33:11,004 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-11-13 18:33:11,004 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-11-13 18:33:11,004 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-11-13 18:33:11,005 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-11-13 18:33:11,005 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-11-13 18:33:11,005 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-11-13 18:33:11,005 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-11-13 18:33:11,006 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-11-13 18:33:11,006 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-11-13 18:33:11,006 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,006 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (<= ~a21~0 0)) (.cse0 (<= ~a8~0 13)) (.cse2 (<= ~a16~0 5)) (.cse6 (<= ~a20~0 0)) (.cse7 (= ~a16~0 6)) (.cse9 (<= 14 ~a8~0)) (.cse3 (<= ~a7~0 0)) (.cse4 (= ~a21~0 1)) (.cse8 (= ~a17~0 1)) (.cse5 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2 .cse5) (and .cse6 .cse4 .cse2) (and .cse0 .cse7 .cse1) (and .cse0 .cse4 .cse8 .cse5) (and .cse9 .cse4 .cse2 .cse5) (and .cse7 .cse9 .cse4 .cse5) (and .cse6 .cse7 .cse9 .cse4) (and .cse3 .cse4 .cse8 .cse5))) [2021-11-13 18:33:11,007 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,007 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,007 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,007 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,007 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-11-13 18:33:11,008 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:33:11,008 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 573) no Hoare annotation was computed. [2021-11-13 18:33:11,008 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-11-13 18:33:11,008 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-11-13 18:33:11,009 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-11-13 18:33:11,009 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-11-13 18:33:11,009 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-11-13 18:33:11,009 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-11-13 18:33:11,010 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-11-13 18:33:11,010 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,010 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,013 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,013 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,013 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-11-13 18:33:11,014 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-11-13 18:33:11,014 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-11-13 18:33:11,014 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-11-13 18:33:11,014 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-11-13 18:33:11,019 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:33:11,023 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:33:11,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:33:11 BoogieIcfgContainer [2021-11-13 18:33:11,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:33:11,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:33:11,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:33:11,083 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:33:11,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:32:54" (3/4) ... [2021-11-13 18:33:11,088 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:33:11,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-13 18:33:11,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:33:11,137 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:33:11,139 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:33:11,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:33:11,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:33:11,302 INFO L158 Benchmark]: Toolchain (without parser) took 19813.64ms. Allocated memory was 109.1MB in the beginning and 211.8MB in the end (delta: 102.8MB). Free memory was 73.6MB in the beginning and 65.0MB in the end (delta: 8.5MB). Peak memory consumption was 110.0MB. Max. memory is 16.1GB. [2021-11-13 18:33:11,302 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 77.6MB. Free memory was 56.8MB in the beginning and 56.8MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:33:11,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1000.66ms. Allocated memory is still 109.1MB. Free memory was 73.4MB in the beginning and 68.7MB in the end (delta: 4.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:33:11,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.65ms. Allocated memory is still 109.1MB. Free memory was 68.7MB in the beginning and 63.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 18:33:11,304 INFO L158 Benchmark]: Boogie Preprocessor took 132.40ms. Allocated memory is still 109.1MB. Free memory was 63.0MB in the beginning and 58.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:33:11,305 INFO L158 Benchmark]: RCFGBuilder took 1608.84ms. Allocated memory is still 109.1MB. Free memory was 58.8MB in the beginning and 41.1MB in the end (delta: 17.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-11-13 18:33:11,306 INFO L158 Benchmark]: TraceAbstraction took 16647.53ms. Allocated memory was 109.1MB in the beginning and 211.8MB in the end (delta: 102.8MB). Free memory was 79.8MB in the beginning and 79.7MB in the end (delta: 127.1kB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2021-11-13 18:33:11,306 INFO L158 Benchmark]: Witness Printer took 218.24ms. Allocated memory is still 211.8MB. Free memory was 79.7MB in the beginning and 65.0MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 18:33:11,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 77.6MB. Free memory was 56.8MB in the beginning and 56.8MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1000.66ms. Allocated memory is still 109.1MB. Free memory was 73.4MB in the beginning and 68.7MB in the end (delta: 4.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.65ms. Allocated memory is still 109.1MB. Free memory was 68.7MB in the beginning and 63.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 132.40ms. Allocated memory is still 109.1MB. Free memory was 63.0MB in the beginning and 58.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1608.84ms. Allocated memory is still 109.1MB. Free memory was 58.8MB in the beginning and 41.1MB in the end (delta: 17.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 16647.53ms. Allocated memory was 109.1MB in the beginning and 211.8MB in the end (delta: 102.8MB). Free memory was 79.8MB in the beginning and 79.7MB in the end (delta: 127.1kB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. * Witness Printer took 218.24ms. Allocated memory is still 211.8MB. Free memory was 79.7MB in the beginning and 65.0MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * 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: 573]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1325 SdHoareTripleChecker+Valid, 7158.96ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1325 mSDsluCounter, 1127 SdHoareTripleChecker+Invalid, 5707.92ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 678 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4400 IncrementalHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 678 mSolverCounterUnsat, 1056 mSDtfsCounter, 4400 mSolverCounterSat, 89.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 841 GetRequests, 816 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2886occurred in iteration=10, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 219 HoareAnnotationTreeSize, 3 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1262 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 2998 NumberOfCodeBlocks, 2998 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2981 ConstructedInterpolants, 0 QuantifiedInterpolants, 9316 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1533 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 1058/1125 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: 593]: Loop Invariant Derived loop invariant: (((((((((a8 <= 13 && a21 <= 0) && a16 <= 5) || (((a7 <= 0 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a21 == 1) && a16 <= 5)) || ((a8 <= 13 && a16 == 6) && a21 <= 0)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1)) || (((a16 == 6 && 14 <= a8) && a21 == 1) && a20 == 1)) || (((a20 <= 0 && a16 == 6) && 14 <= a8) && a21 == 1)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((a8 <= 13 && a21 <= 0) && a16 <= 5) || (((a7 <= 0 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((a20 <= 0 && a21 == 1) && a16 <= 5)) || ((a8 <= 13 && a16 == 6) && a21 <= 0)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((14 <= a8 && a21 == 1) && a16 <= 5) && a20 == 1)) || (((a16 == 6 && 14 <= a8) && a21 == 1) && a20 == 1)) || (((a20 <= 0 && a16 == 6) && 14 <= a8) && a21 == 1)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1) RESULT: Ultimate proved your program to be correct! [2021-11-13 18:33:11,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ebb5678-8446-43f9-8afb-917126d45d76/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE