./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8 --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 c0f41b7d074691792fd10e7dba36f11652ac022c2313237070654cd8c5fa3312 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:32:00,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:32:00,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:32:00,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:32:00,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:32:00,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:32:00,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:32:00,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:32:00,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:32:00,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:32:00,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:32:00,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:32:00,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:32:00,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:32:00,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:32:00,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:32:00,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:32:00,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:32:00,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:32:00,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:32:00,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:32:00,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:32:00,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:32:00,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:32:00,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:32:00,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:32:00,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:32:00,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:32:00,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:32:00,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:32:00,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:32:00,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:32:00,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:32:00,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:32:00,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:32:00,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:32:00,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:32:00,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:32:00,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:32:00,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:32:00,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:32:00,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:32:00,547 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:32:00,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:32:00,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:32:00,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:32:00,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:32:00,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:32:00,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:32:00,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:32:00,551 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:32:00,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:32:00,552 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:32:00,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:32:00,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:32:00,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:32:00,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:32:00,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:32:00,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:32:00,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:32:00,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:32:00,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:32:00,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:32:00,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:32:00,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:32:00,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:32:00,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:32:00,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:32:00,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:32:00,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:32:00,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:32:00,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:32:00,559 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:32:00,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:32:00,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:32:00,560 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_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0f41b7d074691792fd10e7dba36f11652ac022c2313237070654cd8c5fa3312 [2022-11-16 12:32:00,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:32:00,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:32:00,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:32:00,877 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:32:00,878 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:32:00,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/eca-rers2012/Problem01_label02.c [2022-11-16 12:32:00,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/data/2285fab1b/b885902c5883463bb1bf15b2241ad859/FLAG992f8475c [2022-11-16 12:32:01,602 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:32:01,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/sv-benchmarks/c/eca-rers2012/Problem01_label02.c [2022-11-16 12:32:01,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/data/2285fab1b/b885902c5883463bb1bf15b2241ad859/FLAG992f8475c [2022-11-16 12:32:01,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/data/2285fab1b/b885902c5883463bb1bf15b2241ad859 [2022-11-16 12:32:01,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:32:01,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:32:01,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:32:01,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:32:01,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:32:01,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:32:01" (1/1) ... [2022-11-16 12:32:01,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fcd4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:01, skipping insertion in model container [2022-11-16 12:32:01,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:32:01" (1/1) ... [2022-11-16 12:32:01,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:32:01,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:32:02,293 WARN L229 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_23f5eb35-5f04-4df3-9318-f0387066a394/sv-benchmarks/c/eca-rers2012/Problem01_label02.c[16747,16760] [2022-11-16 12:32:02,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:32:02,352 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:32:02,498 WARN L229 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_23f5eb35-5f04-4df3-9318-f0387066a394/sv-benchmarks/c/eca-rers2012/Problem01_label02.c[16747,16760] [2022-11-16 12:32:02,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:32:02,554 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:32:02,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02 WrapperNode [2022-11-16 12:32:02,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:32:02,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:32:02,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:32:02,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:32:02,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,656 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2022-11-16 12:32:02,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:32:02,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:32:02,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:32:02,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:32:02,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:32:02,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:32:02,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:32:02,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:32:02,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (1/1) ... [2022-11-16 12:32:02,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:32:02,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:02,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:32:02,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:32:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:32:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:32:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:32:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:32:02,961 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:32:02,964 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:32:04,166 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:32:04,184 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:32:04,187 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:32:04,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:04 BoogieIcfgContainer [2022-11-16 12:32:04,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:32:04,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:32:04,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:32:04,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:32:04,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:32:01" (1/3) ... [2022-11-16 12:32:04,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5329dca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:32:04, skipping insertion in model container [2022-11-16 12:32:04,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:02" (2/3) ... [2022-11-16 12:32:04,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5329dca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:32:04, skipping insertion in model container [2022-11-16 12:32:04,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:04" (3/3) ... [2022-11-16 12:32:04,207 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label02.c [2022-11-16 12:32:04,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:32:04,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:32:04,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:32:04,305 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e8ff898, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:32:04,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:32:04,324 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) [2022-11-16 12:32:04,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-16 12:32:04,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:04,334 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:32:04,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:04,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:04,340 INFO L85 PathProgramCache]: Analyzing trace with hash -776841673, now seen corresponding path program 1 times [2022-11-16 12:32:04,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:04,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489000948] [2022-11-16 12:32:04,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:04,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:04,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:04,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489000948] [2022-11-16 12:32:04,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489000948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:04,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:04,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:04,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148605272] [2022-11-16 12:32:04,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:04,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:04,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:05,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:05,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:05,022 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 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:05,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:05,846 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2022-11-16 12:32:05,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:05,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-11-16 12:32:05,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:05,872 INFO L225 Difference]: With dead ends: 528 [2022-11-16 12:32:05,872 INFO L226 Difference]: Without dead ends: 266 [2022-11-16 12:32:05,881 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:05,887 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 98 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:05,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 51 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:32:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-16 12:32:05,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-11-16 12:32:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4566037735849056) internal successors, (386), 265 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 386 transitions. [2022-11-16 12:32:05,973 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 386 transitions. Word has length 90 [2022-11-16 12:32:05,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:05,975 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 386 transitions. [2022-11-16 12:32:05,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 386 transitions. [2022-11-16 12:32:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 12:32:05,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:05,986 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 12:32:05,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:32:05,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:05,988 INFO L85 PathProgramCache]: Analyzing trace with hash 904352266, now seen corresponding path program 1 times [2022-11-16 12:32:05,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:05,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461424061] [2022-11-16 12:32:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:05,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:06,150 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:06,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:06,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461424061] [2022-11-16 12:32:06,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461424061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:06,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:06,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:06,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902462960] [2022-11-16 12:32:06,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:06,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:06,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:06,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:06,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:06,157 INFO L87 Difference]: Start difference. First operand 266 states and 386 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:06,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:06,718 INFO L93 Difference]: Finished difference Result 792 states and 1153 transitions. [2022-11-16 12:32:06,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:06,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-11-16 12:32:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:06,722 INFO L225 Difference]: With dead ends: 792 [2022-11-16 12:32:06,722 INFO L226 Difference]: Without dead ends: 528 [2022-11-16 12:32:06,728 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:06,730 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:06,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:32:06,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-11-16 12:32:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-11-16 12:32:06,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3795066413662238) internal successors, (727), 527 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:06,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 727 transitions. [2022-11-16 12:32:06,779 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 727 transitions. Word has length 96 [2022-11-16 12:32:06,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:06,780 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 727 transitions. [2022-11-16 12:32:06,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:06,780 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 727 transitions. [2022-11-16 12:32:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 12:32:06,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:06,782 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 12:32:06,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:32:06,783 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:06,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:06,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1983827210, now seen corresponding path program 1 times [2022-11-16 12:32:06,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:06,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956963444] [2022-11-16 12:32:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:06,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:32:06,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:06,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956963444] [2022-11-16 12:32:06,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956963444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:06,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:06,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:06,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520048296] [2022-11-16 12:32:06,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:06,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:06,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:06,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:06,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:06,932 INFO L87 Difference]: Start difference. First operand 528 states and 727 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:07,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:07,459 INFO L93 Difference]: Finished difference Result 1578 states and 2176 transitions. [2022-11-16 12:32:07,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:07,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 97 [2022-11-16 12:32:07,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:07,464 INFO L225 Difference]: With dead ends: 1578 [2022-11-16 12:32:07,464 INFO L226 Difference]: Without dead ends: 1052 [2022-11-16 12:32:07,465 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:07,466 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 59 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:07,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 31 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:32:07,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2022-11-16 12:32:07,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 659. [2022-11-16 12:32:07,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3768996960486322) internal successors, (906), 658 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:07,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 906 transitions. [2022-11-16 12:32:07,492 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 906 transitions. Word has length 97 [2022-11-16 12:32:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:07,495 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 906 transitions. [2022-11-16 12:32:07,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:07,495 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 906 transitions. [2022-11-16 12:32:07,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 12:32:07,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:07,504 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:32:07,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:32:07,505 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:07,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:07,506 INFO L85 PathProgramCache]: Analyzing trace with hash -963864069, now seen corresponding path program 1 times [2022-11-16 12:32:07,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:07,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999005514] [2022-11-16 12:32:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:07,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:07,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:07,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:07,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999005514] [2022-11-16 12:32:07,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999005514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:07,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:07,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:07,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697688497] [2022-11-16 12:32:07,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:07,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:07,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:07,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:07,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:07,757 INFO L87 Difference]: Start difference. First operand 659 states and 906 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:08,257 INFO L93 Difference]: Finished difference Result 1578 states and 2156 transitions. [2022-11-16 12:32:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:08,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-11-16 12:32:08,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:08,261 INFO L225 Difference]: With dead ends: 1578 [2022-11-16 12:32:08,261 INFO L226 Difference]: Without dead ends: 921 [2022-11-16 12:32:08,262 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:08,263 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 134 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:08,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 55 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:32:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-11-16 12:32:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2022-11-16 12:32:08,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.308695652173913) internal successors, (1204), 920 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1204 transitions. [2022-11-16 12:32:08,285 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1204 transitions. Word has length 103 [2022-11-16 12:32:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:08,285 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1204 transitions. [2022-11-16 12:32:08,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1204 transitions. [2022-11-16 12:32:08,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-16 12:32:08,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:08,288 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:32:08,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:32:08,289 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:08,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:08,290 INFO L85 PathProgramCache]: Analyzing trace with hash -887722715, now seen corresponding path program 1 times [2022-11-16 12:32:08,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:08,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241176119] [2022-11-16 12:32:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:08,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 12:32:08,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241176119] [2022-11-16 12:32:08,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241176119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:08,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:08,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:32:08,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83116038] [2022-11-16 12:32:08,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:08,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:08,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:08,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:08,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:08,461 INFO L87 Difference]: Start difference. First operand 921 states and 1204 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:09,021 INFO L93 Difference]: Finished difference Result 2364 states and 3056 transitions. [2022-11-16 12:32:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:09,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 116 [2022-11-16 12:32:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:09,026 INFO L225 Difference]: With dead ends: 2364 [2022-11-16 12:32:09,027 INFO L226 Difference]: Without dead ends: 1445 [2022-11-16 12:32:09,028 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:09,029 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 137 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:09,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 47 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:32:09,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2022-11-16 12:32:09,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1183. [2022-11-16 12:32:09,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2859560067681894) internal successors, (1520), 1182 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:09,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1520 transitions. [2022-11-16 12:32:09,056 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1520 transitions. Word has length 116 [2022-11-16 12:32:09,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:09,057 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1520 transitions. [2022-11-16 12:32:09,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:09,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1520 transitions. [2022-11-16 12:32:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-16 12:32:09,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:09,060 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:09,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:32:09,061 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:09,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:09,061 INFO L85 PathProgramCache]: Analyzing trace with hash -2095190628, now seen corresponding path program 1 times [2022-11-16 12:32:09,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:09,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495629907] [2022-11-16 12:32:09,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:09,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:09,269 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 12:32:09,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:09,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495629907] [2022-11-16 12:32:09,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495629907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:09,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:09,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:09,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917854701] [2022-11-16 12:32:09,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:09,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:09,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:09,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:09,275 INFO L87 Difference]: Start difference. First operand 1183 states and 1520 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:09,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:09,802 INFO L93 Difference]: Finished difference Result 2495 states and 3205 transitions. [2022-11-16 12:32:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:09,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 118 [2022-11-16 12:32:09,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:09,807 INFO L225 Difference]: With dead ends: 2495 [2022-11-16 12:32:09,807 INFO L226 Difference]: Without dead ends: 1314 [2022-11-16 12:32:09,809 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:09,812 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 121 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:09,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 74 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:32:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-11-16 12:32:09,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2022-11-16 12:32:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.2711348057882712) internal successors, (1669), 1313 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1669 transitions. [2022-11-16 12:32:09,849 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1669 transitions. Word has length 118 [2022-11-16 12:32:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:09,850 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 1669 transitions. [2022-11-16 12:32:09,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1669 transitions. [2022-11-16 12:32:09,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-16 12:32:09,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:09,853 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:09,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:32:09,854 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:09,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:09,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1811589588, now seen corresponding path program 1 times [2022-11-16 12:32:09,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:09,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689256882] [2022-11-16 12:32:09,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:09,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 12:32:10,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:10,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689256882] [2022-11-16 12:32:10,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689256882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:10,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:10,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:32:10,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362706909] [2022-11-16 12:32:10,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:10,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:32:10,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:10,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:32:10,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:32:10,125 INFO L87 Difference]: Start difference. First operand 1314 states and 1669 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:10,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:10,816 INFO L93 Difference]: Finished difference Result 3019 states and 3777 transitions. [2022-11-16 12:32:10,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:32:10,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 122 [2022-11-16 12:32:10,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:10,822 INFO L225 Difference]: With dead ends: 3019 [2022-11-16 12:32:10,822 INFO L226 Difference]: Without dead ends: 1707 [2022-11-16 12:32:10,824 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:10,825 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 392 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:10,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 71 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:32:10,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-11-16 12:32:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2022-11-16 12:32:10,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.2412698412698413) internal successors, (1955), 1575 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1955 transitions. [2022-11-16 12:32:10,866 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1955 transitions. Word has length 122 [2022-11-16 12:32:10,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:10,868 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 1955 transitions. [2022-11-16 12:32:10,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:10,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1955 transitions. [2022-11-16 12:32:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-16 12:32:10,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:10,871 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:10,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:32:10,872 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:10,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:10,873 INFO L85 PathProgramCache]: Analyzing trace with hash 650221427, now seen corresponding path program 1 times [2022-11-16 12:32:10,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:10,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568804790] [2022-11-16 12:32:10,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:10,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:11,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:11,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568804790] [2022-11-16 12:32:11,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568804790] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:11,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226772365] [2022-11-16 12:32:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:11,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:11,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:11,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:11,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:32:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:11,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:32:11,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:11,546 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 12:32:11,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:11,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226772365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:11,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:11,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-11-16 12:32:11,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828123857] [2022-11-16 12:32:11,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:11,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:11,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:11,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:11,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:32:11,550 INFO L87 Difference]: Start difference. First operand 1576 states and 1955 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 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) [2022-11-16 12:32:12,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:12,037 INFO L93 Difference]: Finished difference Result 3674 states and 4578 transitions. [2022-11-16 12:32:12,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:12,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 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 140 [2022-11-16 12:32:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:12,044 INFO L225 Difference]: With dead ends: 3674 [2022-11-16 12:32:12,045 INFO L226 Difference]: Without dead ends: 2100 [2022-11-16 12:32:12,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:32:12,047 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:12,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 31 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:12,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-11-16 12:32:12,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2022-11-16 12:32:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.217479674796748) internal successors, (2396), 1968 states have internal predecessors, (2396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:12,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2396 transitions. [2022-11-16 12:32:12,118 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2396 transitions. Word has length 140 [2022-11-16 12:32:12,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:12,119 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2396 transitions. [2022-11-16 12:32:12,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 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) [2022-11-16 12:32:12,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2396 transitions. [2022-11-16 12:32:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-16 12:32:12,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:12,124 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:12,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:12,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:12,330 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:12,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:12,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1361137988, now seen corresponding path program 1 times [2022-11-16 12:32:12,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:12,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898887317] [2022-11-16 12:32:12,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 82 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-16 12:32:12,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:12,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898887317] [2022-11-16 12:32:12,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898887317] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:12,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806819239] [2022-11-16 12:32:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:12,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:12,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:12,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:12,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:32:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:12,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:32:12,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-16 12:32:13,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:13,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806819239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:13,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:13,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-11-16 12:32:13,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831909885] [2022-11-16 12:32:13,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:13,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:13,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:13,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:13,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:32:13,150 INFO L87 Difference]: Start difference. First operand 1969 states and 2396 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:13,609 INFO L93 Difference]: Finished difference Result 4460 states and 5459 transitions. [2022-11-16 12:32:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:13,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2022-11-16 12:32:13,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:13,619 INFO L225 Difference]: With dead ends: 4460 [2022-11-16 12:32:13,620 INFO L226 Difference]: Without dead ends: 2493 [2022-11-16 12:32:13,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:32:13,625 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 49 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:13,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 193 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:13,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2022-11-16 12:32:13,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2231. [2022-11-16 12:32:13,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.2080717488789237) internal successors, (2694), 2230 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2694 transitions. [2022-11-16 12:32:13,686 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2694 transitions. Word has length 163 [2022-11-16 12:32:13,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:13,687 INFO L495 AbstractCegarLoop]: Abstraction has 2231 states and 2694 transitions. [2022-11-16 12:32:13,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:13,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2694 transitions. [2022-11-16 12:32:13,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-16 12:32:13,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:13,692 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:32:13,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:13,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-16 12:32:13,908 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:13,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:13,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1645727001, now seen corresponding path program 1 times [2022-11-16 12:32:13,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:13,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762930473] [2022-11-16 12:32:13,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:13,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-16 12:32:14,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:14,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762930473] [2022-11-16 12:32:14,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762930473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:14,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:14,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:14,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992325748] [2022-11-16 12:32:14,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:14,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:14,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:14,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:14,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:14,212 INFO L87 Difference]: Start difference. First operand 2231 states and 2694 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 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) [2022-11-16 12:32:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:14,663 INFO L93 Difference]: Finished difference Result 4591 states and 5560 transitions. [2022-11-16 12:32:14,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 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 176 [2022-11-16 12:32:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:14,672 INFO L225 Difference]: With dead ends: 4591 [2022-11-16 12:32:14,673 INFO L226 Difference]: Without dead ends: 2362 [2022-11-16 12:32:14,675 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:14,676 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:14,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 60 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-11-16 12:32:14,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2022-11-16 12:32:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2361 states have (on average 1.1994917407878019) internal successors, (2832), 2361 states have internal predecessors, (2832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2832 transitions. [2022-11-16 12:32:14,736 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2832 transitions. Word has length 176 [2022-11-16 12:32:14,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:14,736 INFO L495 AbstractCegarLoop]: Abstraction has 2362 states and 2832 transitions. [2022-11-16 12:32:14,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 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) [2022-11-16 12:32:14,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2832 transitions. [2022-11-16 12:32:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-16 12:32:14,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:14,742 INFO L195 NwaCegarLoop]: 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:14,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:32:14,742 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:14,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:14,743 INFO L85 PathProgramCache]: Analyzing trace with hash -836738982, now seen corresponding path program 1 times [2022-11-16 12:32:14,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:14,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603087542] [2022-11-16 12:32:14,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:14,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 101 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:15,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:15,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603087542] [2022-11-16 12:32:15,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603087542] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:15,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768797864] [2022-11-16 12:32:15,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:15,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:15,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:15,342 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:15,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:32:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:15,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:32:15,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-16 12:32:15,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:15,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768797864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:15,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:15,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-16 12:32:15,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011410658] [2022-11-16 12:32:15,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:15,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:15,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:15,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:15,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:32:15,650 INFO L87 Difference]: Start difference. First operand 2362 states and 2832 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 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) [2022-11-16 12:32:16,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:16,150 INFO L93 Difference]: Finished difference Result 6032 states and 7225 transitions. [2022-11-16 12:32:16,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:16,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 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 189 [2022-11-16 12:32:16,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:16,163 INFO L225 Difference]: With dead ends: 6032 [2022-11-16 12:32:16,163 INFO L226 Difference]: Without dead ends: 3672 [2022-11-16 12:32:16,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:32:16,168 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 67 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:16,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 31 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2022-11-16 12:32:16,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 3410. [2022-11-16 12:32:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 1.188911704312115) internal successors, (4053), 3409 states have internal predecessors, (4053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:16,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 4053 transitions. [2022-11-16 12:32:16,258 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 4053 transitions. Word has length 189 [2022-11-16 12:32:16,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:16,258 INFO L495 AbstractCegarLoop]: Abstraction has 3410 states and 4053 transitions. [2022-11-16 12:32:16,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 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) [2022-11-16 12:32:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 4053 transitions. [2022-11-16 12:32:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-16 12:32:16,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:16,268 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:32:16,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:16,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 12:32:16,477 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:16,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:16,477 INFO L85 PathProgramCache]: Analyzing trace with hash 347086668, now seen corresponding path program 1 times [2022-11-16 12:32:16,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:16,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789112610] [2022-11-16 12:32:16,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:16,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:16,678 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-11-16 12:32:16,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:16,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789112610] [2022-11-16 12:32:16,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789112610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:16,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:16,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:32:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513608064] [2022-11-16 12:32:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:16,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:16,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:16,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:16,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:16,681 INFO L87 Difference]: Start difference. First operand 3410 states and 4053 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:17,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:17,162 INFO L93 Difference]: Finished difference Result 7211 states and 8563 transitions. [2022-11-16 12:32:17,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:17,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 201 [2022-11-16 12:32:17,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:17,172 INFO L225 Difference]: With dead ends: 7211 [2022-11-16 12:32:17,173 INFO L226 Difference]: Without dead ends: 3410 [2022-11-16 12:32:17,176 INFO L412 NwaCegarLoop]: 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 [2022-11-16 12:32:17,177 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 137 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:17,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 191 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:17,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2022-11-16 12:32:17,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3148. [2022-11-16 12:32:17,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.1035907213218938) internal successors, (3473), 3147 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3473 transitions. [2022-11-16 12:32:17,246 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3473 transitions. Word has length 201 [2022-11-16 12:32:17,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:17,246 INFO L495 AbstractCegarLoop]: Abstraction has 3148 states and 3473 transitions. [2022-11-16 12:32:17,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:17,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3473 transitions. [2022-11-16 12:32:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-16 12:32:17,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:17,254 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:32:17,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:32:17,254 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:17,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:17,255 INFO L85 PathProgramCache]: Analyzing trace with hash 901044654, now seen corresponding path program 1 times [2022-11-16 12:32:17,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:17,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340083297] [2022-11-16 12:32:17,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:17,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 161 proven. 6 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-16 12:32:17,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:17,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340083297] [2022-11-16 12:32:17,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340083297] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128181795] [2022-11-16 12:32:17,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:17,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:17,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:17,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:17,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:32:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:17,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:32:17,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-16 12:32:18,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:18,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128181795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:18,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:18,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-16 12:32:18,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56450469] [2022-11-16 12:32:18,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:18,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:18,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:18,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:18,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:32:18,138 INFO L87 Difference]: Start difference. First operand 3148 states and 3473 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) [2022-11-16 12:32:18,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:18,572 INFO L93 Difference]: Finished difference Result 6687 states and 7401 transitions. [2022-11-16 12:32:18,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:18,573 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 221 [2022-11-16 12:32:18,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:18,582 INFO L225 Difference]: With dead ends: 6687 [2022-11-16 12:32:18,583 INFO L226 Difference]: Without dead ends: 3541 [2022-11-16 12:32:18,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:32:18,587 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 55 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:18,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 169 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:18,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2022-11-16 12:32:18,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3410. [2022-11-16 12:32:18,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 1.0903490759753593) internal successors, (3717), 3409 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 3717 transitions. [2022-11-16 12:32:18,660 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 3717 transitions. Word has length 221 [2022-11-16 12:32:18,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:18,660 INFO L495 AbstractCegarLoop]: Abstraction has 3410 states and 3717 transitions. [2022-11-16 12:32:18,660 INFO L496 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) [2022-11-16 12:32:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 3717 transitions. [2022-11-16 12:32:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-16 12:32:18,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:18,669 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:32:18,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:18,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 12:32:18,875 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:18,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:18,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1726679257, now seen corresponding path program 1 times [2022-11-16 12:32:18,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:18,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543935856] [2022-11-16 12:32:18,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:18,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 228 proven. 6 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-11-16 12:32:19,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:19,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543935856] [2022-11-16 12:32:19,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543935856] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:19,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900094812] [2022-11-16 12:32:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:19,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:19,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:19,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:19,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:32:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:19,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:32:19,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:19,590 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-11-16 12:32:19,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:19,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900094812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:19,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:19,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-16 12:32:19,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602742446] [2022-11-16 12:32:19,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:19,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:19,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:19,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:19,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:32:19,594 INFO L87 Difference]: Start difference. First operand 3410 states and 3717 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:20,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:20,057 INFO L93 Difference]: Finished difference Result 7080 states and 7718 transitions. [2022-11-16 12:32:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:20,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 260 [2022-11-16 12:32:20,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:20,082 INFO L225 Difference]: With dead ends: 7080 [2022-11-16 12:32:20,089 INFO L226 Difference]: Without dead ends: 3541 [2022-11-16 12:32:20,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:32:20,094 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 109 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:20,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 175 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:20,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3541 states. [2022-11-16 12:32:20,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3410. [2022-11-16 12:32:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 1.0765620416544441) internal successors, (3670), 3409 states have internal predecessors, (3670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 3670 transitions. [2022-11-16 12:32:20,171 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 3670 transitions. Word has length 260 [2022-11-16 12:32:20,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:20,172 INFO L495 AbstractCegarLoop]: Abstraction has 3410 states and 3670 transitions. [2022-11-16 12:32:20,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:20,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 3670 transitions. [2022-11-16 12:32:20,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-16 12:32:20,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:20,181 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-16 12:32:20,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:20,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 12:32:20,391 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:20,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:20,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1381679681, now seen corresponding path program 1 times [2022-11-16 12:32:20,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:20,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459790415] [2022-11-16 12:32:20,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:20,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 233 proven. 6 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-16 12:32:20,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:20,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459790415] [2022-11-16 12:32:20,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459790415] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:20,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086630028] [2022-11-16 12:32:20,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:20,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:20,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:20,914 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:20,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:32:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:21,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:32:21,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:21,139 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-16 12:32:21,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:21,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086630028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:21,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:32:21,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-16 12:32:21,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594307284] [2022-11-16 12:32:21,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:21,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:21,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:21,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:21,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:32:21,142 INFO L87 Difference]: Start difference. First operand 3410 states and 3670 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:21,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:21,593 INFO L93 Difference]: Finished difference Result 6816 states and 7332 transitions. [2022-11-16 12:32:21,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:21,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 265 [2022-11-16 12:32:21,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:21,595 INFO L225 Difference]: With dead ends: 6816 [2022-11-16 12:32:21,595 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:32:21,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:32:21,600 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:21,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 179 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:21,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:32:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:32:21,602 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) [2022-11-16 12:32:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:32:21,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 265 [2022-11-16 12:32:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:21,602 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:32:21,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:32:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:32:21,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:32:21,605 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:32:21,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:21,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 12:32:21,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:32:23,140 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-11-16 12:32:23,140 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-11-16 12:32:23,140 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-11-16 12:32:23,140 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-11-16 12:32:23,140 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-11-16 12:32:23,141 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,142 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-11-16 12:32:23,143 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-11-16 12:32:23,144 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,145 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,146 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,146 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,149 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-11-16 12:32:23,149 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-11-16 12:32:23,149 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-11-16 12:32:23,149 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-11-16 12:32:23,152 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-11-16 12:32:23,152 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-11-16 12:32:23,152 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-11-16 12:32:23,152 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-11-16 12:32:23,153 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-11-16 12:32:23,153 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-11-16 12:32:23,153 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,153 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,153 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,153 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,153 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,154 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,154 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-11-16 12:32:23,154 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-11-16 12:32:23,155 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-11-16 12:32:23,156 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-11-16 12:32:23,157 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-11-16 12:32:23,158 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-11-16 12:32:23,158 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-11-16 12:32:23,158 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-11-16 12:32:23,158 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-11-16 12:32:23,158 INFO L895 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse2 (<= ~a16~0 4)) (.cse6 (<= ~a20~0 0)) (.cse7 (<= 14 ~a8~0)) (.cse4 (= ~a21~0 1)) (.cse0 (<= ~a8~0 13)) (.cse5 (<= ~a21~0 0)) (.cse1 (= ~a17~0 1)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= ~a7~0 0) .cse4 .cse3) (and .cse4 .cse1 .cse3) (and .cse0 (or (and .cse5 .cse3) (and .cse5 .cse1)) .cse2) (and .cse0 (<= 6 ~a16~0) .cse3) (and .cse6 .cse2) (and .cse6 .cse7) (and .cse7 .cse4 .cse3) (and .cse0 .cse5 .cse1 .cse3))) [2022-11-16 12:32:23,158 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-11-16 12:32:23,159 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,160 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-11-16 12:32:23,161 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-11-16 12:32:23,162 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-11-16 12:32:23,163 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,164 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse2 (<= ~a16~0 4)) (.cse6 (<= ~a20~0 0)) (.cse7 (<= 14 ~a8~0)) (.cse4 (= ~a21~0 1)) (.cse0 (<= ~a8~0 13)) (.cse5 (<= ~a21~0 0)) (.cse1 (= ~a17~0 1)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= ~a7~0 0) .cse4 .cse3) (and .cse4 .cse1 .cse3) (and .cse0 (or (and .cse5 .cse3) (and .cse5 .cse1)) .cse2) (and .cse0 (<= 6 ~a16~0) .cse3) (and .cse6 .cse2) (and .cse6 .cse7) (and .cse7 .cse4 .cse3) (and .cse0 .cse5 .cse1 .cse3))) [2022-11-16 12:32:23,164 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,164 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,164 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,164 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,164 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-11-16 12:32:23,164 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:32:23,164 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 456) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,165 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-11-16 12:32:23,166 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-11-16 12:32:23,166 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-11-16 12:32:23,166 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-11-16 12:32:23,166 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-11-16 12:32:23,169 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:23,173 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:32:23,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:32:23 BoogieIcfgContainer [2022-11-16 12:32:23,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:32:23,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:32:23,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:32:23,209 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:32:23,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:04" (3/4) ... [2022-11-16 12:32:23,218 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:32:23,248 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 12:32:23,249 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:32:23,250 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:32:23,251 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:32:23,385 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:32:23,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:32:23,386 INFO L158 Benchmark]: Toolchain (without parser) took 21519.97ms. Allocated memory was 107.0MB in the beginning and 377.5MB in the end (delta: 270.5MB). Free memory was 59.5MB in the beginning and 138.8MB in the end (delta: -79.4MB). Peak memory consumption was 191.5MB. Max. memory is 16.1GB. [2022-11-16 12:32:23,386 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:32:23,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.63ms. Allocated memory is still 107.0MB. Free memory was 59.3MB in the beginning and 62.8MB in the end (delta: -3.5MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-11-16 12:32:23,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.92ms. Allocated memory is still 107.0MB. Free memory was 62.8MB in the beginning and 56.9MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:32:23,389 INFO L158 Benchmark]: Boogie Preprocessor took 102.35ms. Allocated memory is still 107.0MB. Free memory was 56.9MB in the beginning and 52.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:32:23,390 INFO L158 Benchmark]: RCFGBuilder took 1430.80ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 52.4MB in the beginning and 104.7MB in the end (delta: -52.3MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-11-16 12:32:23,390 INFO L158 Benchmark]: TraceAbstraction took 19012.68ms. Allocated memory was 144.7MB in the beginning and 377.5MB in the end (delta: 232.8MB). Free memory was 103.6MB in the beginning and 148.5MB in the end (delta: -44.9MB). Peak memory consumption was 216.2MB. Max. memory is 16.1GB. [2022-11-16 12:32:23,390 INFO L158 Benchmark]: Witness Printer took 177.70ms. Allocated memory is still 377.5MB. Free memory was 148.5MB in the beginning and 138.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:32:23,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.63ms. Allocated memory is still 107.0MB. Free memory was 59.3MB in the beginning and 62.8MB in the end (delta: -3.5MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.92ms. Allocated memory is still 107.0MB. Free memory was 62.8MB in the beginning and 56.9MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.35ms. Allocated memory is still 107.0MB. Free memory was 56.9MB in the beginning and 52.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1430.80ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 52.4MB in the beginning and 104.7MB in the end (delta: -52.3MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19012.68ms. Allocated memory was 144.7MB in the beginning and 377.5MB in the end (delta: 232.8MB). Free memory was 103.6MB in the beginning and 148.5MB in the end (delta: -44.9MB). Peak memory consumption was 216.2MB. Max. memory is 16.1GB. * Witness Printer took 177.70ms. Allocated memory is still 377.5MB. Free memory was 148.5MB in the beginning and 138.8MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. 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: 456]: 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: 18.9s, OverallIterations: 15, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1768 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1768 mSDsluCounter, 1394 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 800 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5158 IncrementalHoareTripleChecker+Invalid, 5958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 800 mSolverCounterUnsat, 1313 mSDtfsCounter, 5158 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1276 GetRequests, 1243 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3410occurred in iteration=11, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 1965 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 207 HoareAnnotationTreeSize, 3 FomulaSimplifications, 290 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 4816 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 3595 NumberOfCodeBlocks, 3595 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 3574 ConstructedInterpolants, 0 QuantifiedInterpolants, 8515 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2510 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 21 InterpolantComputations, 15 PerfectInterpolantSequences, 3337/3426 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 && a17 == 1) && a16 <= 4) && a20 == 1) || ((a7 <= 0 && a21 == 1) && a20 == 1)) || ((a21 == 1 && a17 == 1) && a20 == 1)) || ((a8 <= 13 && ((a21 <= 0 && a20 == 1) || (a21 <= 0 && a17 == 1))) && a16 <= 4)) || ((a8 <= 13 && 6 <= a16) && a20 == 1)) || (a20 <= 0 && a16 <= 4)) || (a20 <= 0 && 14 <= a8)) || ((14 <= a8 && a21 == 1) && a20 == 1)) || (((a8 <= 13 && a21 <= 0) && a17 == 1) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((a8 <= 13 && a17 == 1) && a16 <= 4) && a20 == 1) || ((a7 <= 0 && a21 == 1) && a20 == 1)) || ((a21 == 1 && a17 == 1) && a20 == 1)) || ((a8 <= 13 && ((a21 <= 0 && a20 == 1) || (a21 <= 0 && a17 == 1))) && a16 <= 4)) || ((a8 <= 13 && 6 <= a16) && a20 == 1)) || (a20 <= 0 && a16 <= 4)) || (a20 <= 0 && 14 <= a8)) || ((14 <= a8 && a21 == 1) && a20 == 1)) || (((a8 <= 13 && a21 <= 0) && a17 == 1) && a20 == 1) RESULT: Ultimate proved your program to be correct! [2022-11-16 12:32:23,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23f5eb35-5f04-4df3-9318-f0387066a394/bin/uautomizer-tPACEb0tL8/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