./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label14.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8 --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 5f9fca637959b0405b85bc0888663e9766bbda8452df25504c5ed522a839814d --- 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-2329fc7 [2022-12-13 14:49:33,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:49:33,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:49:33,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:49:33,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:49:33,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:49:33,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:49:33,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:49:33,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:49:33,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:49:33,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:49:33,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:49:33,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:49:33,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:49:33,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:49:33,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:49:33,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:49:33,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:49:33,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:49:33,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:49:33,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:49:33,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:49:33,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:49:33,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:49:33,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:49:33,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:49:33,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:49:33,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:49:33,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:49:33,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:49:33,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:49:33,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:49:33,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:49:33,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:49:33,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:49:33,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:49:33,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:49:33,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:49:33,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:49:33,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:49:33,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:49:33,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:49:33,593 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:49:33,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:49:33,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:49:33,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:49:33,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:49:33,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:49:33,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:49:33,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:49:33,595 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:49:33,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:49:33,596 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:49:33,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:49:33,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:49:33,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:49:33,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:49:33,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:49:33,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:49:33,596 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:49:33,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:49:33,597 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:49:33,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:49:33,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:49:33,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:49:33,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:49:33,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:49:33,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:49:33,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:49:33,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:49:33,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:49:33,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:49:33,599 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:49:33,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:49:33,599 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:49:33,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:49:33,599 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:49:33,599 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f9fca637959b0405b85bc0888663e9766bbda8452df25504c5ed522a839814d [2022-12-13 14:49:33,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:49:33,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:49:33,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:49:33,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:49:33,813 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:49:33,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem07_label14.c [2022-12-13 14:49:36,442 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:49:37,497 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:49:37,498 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/sv-benchmarks/c/eca-rers2012/Problem07_label14.c [2022-12-13 14:49:37,615 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/data/9b8a04a95/e09352a5dadf46da8c3080dcfe400d8a/FLAG172d91cf2 [2022-12-13 14:49:37,626 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/data/9b8a04a95/e09352a5dadf46da8c3080dcfe400d8a [2022-12-13 14:49:37,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:49:37,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:49:37,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:49:37,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:49:37,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:49:37,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:49:37" (1/1) ... [2022-12-13 14:49:37,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196b9f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:37, skipping insertion in model container [2022-12-13 14:49:37,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:49:37" (1/1) ... [2022-12-13 14:49:37,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:49:38,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:49:47,950 WARN L237 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_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/sv-benchmarks/c/eca-rers2012/Problem07_label14.c[2774440,2774453] [2022-12-13 14:49:48,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:49:48,016 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:49:53,740 WARN L237 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_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/sv-benchmarks/c/eca-rers2012/Problem07_label14.c[2774440,2774453] [2022-12-13 14:49:53,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:49:54,342 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:49:54,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54 WrapperNode [2022-12-13 14:49:54,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:49:54,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:49:54,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:49:54,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:49:54,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:54,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:55,859 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2022-12-13 14:49:55,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:49:55,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:49:55,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:49:55,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:49:55,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:55,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:56,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:56,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:56,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:56,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:56,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:57,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:57,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:49:57,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:49:57,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:49:57,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:49:57,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (1/1) ... [2022-12-13 14:49:57,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:49:57,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:49:57,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:49:57,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44cbbee9-5390-4ba8-942e-6d5ac00e8e4c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:49:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:49:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:49:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:49:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:49:57,474 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:49:57,476 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:50:28,560 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:50:28,617 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:50:28,618 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:50:28,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:50:28 BoogieIcfgContainer [2022-12-13 14:50:28,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:50:28,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:50:28,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:50:28,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:50:28,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:49:37" (1/3) ... [2022-12-13 14:50:28,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f44ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:50:28, skipping insertion in model container [2022-12-13 14:50:28,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:54" (2/3) ... [2022-12-13 14:50:28,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f44ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:50:28, skipping insertion in model container [2022-12-13 14:50:28,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:50:28" (3/3) ... [2022-12-13 14:50:28,637 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label14.c [2022-12-13 14:50:28,650 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:50:28,650 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:50:28,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:50:28,773 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;@239e222a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:50:28,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:50:28,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:50:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10132 [2022-12-13 14:50:29,219 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:50:29,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:50:29,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:50:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:50:29,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1445890511, now seen corresponding path program 1 times [2022-12-13 14:50:29,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:50:29,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147160437] [2022-12-13 14:50:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:50:29,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:50:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:50:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:50:58,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:50:58,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147160437] [2022-12-13 14:50:58,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147160437] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:50:58,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:50:58,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:50:58,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299963206] [2022-12-13 14:50:58,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:50:58,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:50:58,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:50:58,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:50:58,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:50:58,798 INFO L87 Difference]: Start difference. First operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 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 3377.0) internal successors, (10131), 2 states have internal predecessors, (10131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:51:30,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:51:30,290 INFO L93 Difference]: Finished difference Result 30705 states and 61134 transitions. [2022-12-13 14:51:30,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:51:30,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3377.0) internal successors, (10131), 2 states have internal predecessors, (10131), 0 states have call successors, (0), 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 10131 [2022-12-13 14:51:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:51:30,364 INFO L225 Difference]: With dead ends: 30705 [2022-12-13 14:51:30,364 INFO L226 Difference]: Without dead ends: 20384 [2022-12-13 14:51:30,377 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 [2022-12-13 14:51:30,379 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 495 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 33762 mSolverCounterSat, 12120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 45882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12120 IncrementalHoareTripleChecker+Valid, 33762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2022-12-13 14:51:30,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 792 Invalid, 45882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12120 Valid, 33762 Invalid, 0 Unknown, 0 Unchecked, 30.9s Time] [2022-12-13 14:51:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20384 states. [2022-12-13 14:51:30,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384. [2022-12-13 14:51:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20384 states, 20383 states have (on average 1.9570230093705538) internal successors, (39890), 20383 states have internal predecessors, (39890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:51:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 39890 transitions. [2022-12-13 14:51:30,728 INFO L78 Accepts]: Start accepts. Automaton has 20384 states and 39890 transitions. Word has length 10131 [2022-12-13 14:51:30,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:51:30,738 INFO L495 AbstractCegarLoop]: Abstraction has 20384 states and 39890 transitions. [2022-12-13 14:51:30,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3377.0) internal successors, (10131), 2 states have internal predecessors, (10131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:51:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 20384 states and 39890 transitions. [2022-12-13 14:51:31,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10137 [2022-12-13 14:51:31,355 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:51:31,358 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:51:31,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:51:31,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:51:31,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:51:31,361 INFO L85 PathProgramCache]: Analyzing trace with hash 892126057, now seen corresponding path program 1 times [2022-12-13 14:51:31,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:51:31,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106249960] [2022-12-13 14:51:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:51:31,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:51:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:51:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:51:51,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:51:51,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106249960] [2022-12-13 14:51:51,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106249960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:51:51,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:51:51,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:51:51,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329396286] [2022-12-13 14:51:51,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:51:51,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:51:51,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:51:51,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:51:51,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:51:51,196 INFO L87 Difference]: Start difference. First operand 20384 states and 39890 transitions. Second operand has 3 states, 3 states have (on average 3378.6666666666665) internal successors, (10136), 2 states have internal predecessors, (10136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:52:19,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:52:19,638 INFO L93 Difference]: Finished difference Result 61146 states and 119665 transitions. [2022-12-13 14:52:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:52:19,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3378.6666666666665) internal successors, (10136), 2 states have internal predecessors, (10136), 0 states have call successors, (0), 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 10136 [2022-12-13 14:52:19,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:52:19,693 INFO L225 Difference]: With dead ends: 61146 [2022-12-13 14:52:19,694 INFO L226 Difference]: Without dead ends: 40764 [2022-12-13 14:52:19,706 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 [2022-12-13 14:52:19,707 INFO L413 NwaCegarLoop]: 4822 mSDtfsCounter, 13686 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28825 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13686 SdHoareTripleChecker+Valid, 4871 SdHoareTripleChecker+Invalid, 40502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 28825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-12-13 14:52:19,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13686 Valid, 4871 Invalid, 40502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 28825 Invalid, 0 Unknown, 0 Unchecked, 27.9s Time] [2022-12-13 14:52:19,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40764 states. [2022-12-13 14:52:20,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764. [2022-12-13 14:52:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40764 states, 40763 states have (on average 1.731447636336874) internal successors, (70579), 40763 states have internal predecessors, (70579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:52:20,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 70579 transitions. [2022-12-13 14:52:20,256 INFO L78 Accepts]: Start accepts. Automaton has 40764 states and 70579 transitions. Word has length 10136 [2022-12-13 14:52:20,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:52:20,257 INFO L495 AbstractCegarLoop]: Abstraction has 40764 states and 70579 transitions. [2022-12-13 14:52:20,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3378.6666666666665) internal successors, (10136), 2 states have internal predecessors, (10136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:52:20,259 INFO L276 IsEmpty]: Start isEmpty. Operand 40764 states and 70579 transitions. [2022-12-13 14:52:20,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10147 [2022-12-13 14:52:20,874 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:52:20,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:52:20,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:52:20,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:52:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:52:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash -285190558, now seen corresponding path program 1 times [2022-12-13 14:52:20,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:52:20,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101066866] [2022-12-13 14:52:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:52:20,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:52:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:52:45,143 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:52:45,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:52:45,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101066866] [2022-12-13 14:52:45,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101066866] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:52:45,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:52:45,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:52:45,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788414657] [2022-12-13 14:52:45,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:52:45,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:52:45,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:52:45,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:52:45,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:52:45,155 INFO L87 Difference]: Start difference. First operand 40764 states and 70579 transitions. Second operand has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:53:14,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:53:14,298 INFO L93 Difference]: Finished difference Result 122286 states and 211732 transitions. [2022-12-13 14:53:14,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:53:14,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 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 10146 [2022-12-13 14:53:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:53:14,380 INFO L225 Difference]: With dead ends: 122286 [2022-12-13 14:53:14,381 INFO L226 Difference]: Without dead ends: 81524 [2022-12-13 14:53:14,404 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 [2022-12-13 14:53:14,405 INFO L413 NwaCegarLoop]: 7617 mSDtfsCounter, 12053 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35105 mSolverCounterSat, 6982 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12053 SdHoareTripleChecker+Valid, 7667 SdHoareTripleChecker+Invalid, 42087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6982 IncrementalHoareTripleChecker+Valid, 35105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:53:14,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12053 Valid, 7667 Invalid, 42087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6982 Valid, 35105 Invalid, 0 Unknown, 0 Unchecked, 28.5s Time] [2022-12-13 14:53:14,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81524 states. [2022-12-13 14:53:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81524 to 81524. [2022-12-13 14:53:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81524 states, 81523 states have (on average 1.5510592102842142) internal successors, (126447), 81523 states have internal predecessors, (126447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:53:15,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 126447 transitions. [2022-12-13 14:53:15,217 INFO L78 Accepts]: Start accepts. Automaton has 81524 states and 126447 transitions. Word has length 10146 [2022-12-13 14:53:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:53:15,217 INFO L495 AbstractCegarLoop]: Abstraction has 81524 states and 126447 transitions. [2022-12-13 14:53:15,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:53:15,219 INFO L276 IsEmpty]: Start isEmpty. Operand 81524 states and 126447 transitions. [2022-12-13 14:53:15,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10148 [2022-12-13 14:53:15,775 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:15,862 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:15,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:53:15,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:53:15,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:15,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1381750174, now seen corresponding path program 1 times [2022-12-13 14:53:15,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:53:15,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512033955] [2022-12-13 14:53:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:15,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:53:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:53:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 14:53:37,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:53:37,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512033955] [2022-12-13 14:53:37,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512033955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:53:37,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:53:37,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:53:37,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046597538] [2022-12-13 14:53:37,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:53:37,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:53:37,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:53:37,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:53:37,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:53:37,663 INFO L87 Difference]: Start difference. First operand 81524 states and 126447 transitions. Second operand has 3 states, 3 states have (on average 3381.0) internal successors, (10143), 2 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:54:06,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:54:06,305 INFO L93 Difference]: Finished difference Result 244566 states and 379336 transitions. [2022-12-13 14:54:06,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:54:06,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3381.0) internal successors, (10143), 2 states have internal predecessors, (10143), 0 states have call successors, (0), 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 10147 [2022-12-13 14:54:06,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:54:06,510 INFO L225 Difference]: With dead ends: 244566 [2022-12-13 14:54:06,510 INFO L226 Difference]: Without dead ends: 163044 [2022-12-13 14:54:06,541 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 [2022-12-13 14:54:06,542 INFO L413 NwaCegarLoop]: 6554 mSDtfsCounter, 13060 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27577 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13060 SdHoareTripleChecker+Valid, 6603 SdHoareTripleChecker+Invalid, 40607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:54:06,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13060 Valid, 6603 Invalid, 40607 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27577 Invalid, 0 Unknown, 0 Unchecked, 27.7s Time] [2022-12-13 14:54:06,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163044 states. [2022-12-13 14:54:07,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044. [2022-12-13 14:54:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163044 states, 163043 states have (on average 1.3997105058174837) internal successors, (228213), 163043 states have internal predecessors, (228213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:54:08,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 228213 transitions. [2022-12-13 14:54:08,034 INFO L78 Accepts]: Start accepts. Automaton has 163044 states and 228213 transitions. Word has length 10147 [2022-12-13 14:54:08,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:54:08,035 INFO L495 AbstractCegarLoop]: Abstraction has 163044 states and 228213 transitions. [2022-12-13 14:54:08,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3381.0) internal successors, (10143), 2 states have internal predecessors, (10143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:54:08,036 INFO L276 IsEmpty]: Start isEmpty. Operand 163044 states and 228213 transitions. [2022-12-13 14:54:08,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10151 [2022-12-13 14:54:08,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:54:08,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:54:08,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:54:08,980 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:54:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:54:08,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1118872202, now seen corresponding path program 1 times [2022-12-13 14:54:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:54:08,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846009749] [2022-12-13 14:54:08,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:54:08,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:54:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:54:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 14:54:28,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:54:28,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846009749] [2022-12-13 14:54:28,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846009749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:54:28,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:54:28,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:54:28,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116902410] [2022-12-13 14:54:28,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:54:28,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:54:28,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:54:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:54:28,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:54:28,841 INFO L87 Difference]: Start difference. First operand 163044 states and 228213 transitions. Second operand has 3 states, 3 states have (on average 3378.6666666666665) internal successors, (10136), 2 states have internal predecessors, (10136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:54:58,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:54:58,574 INFO L93 Difference]: Finished difference Result 489126 states and 684634 transitions. [2022-12-13 14:54:58,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:54:58,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3378.6666666666665) internal successors, (10136), 2 states have internal predecessors, (10136), 0 states have call successors, (0), 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 10150 [2022-12-13 14:54:58,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:54:58,930 INFO L225 Difference]: With dead ends: 489126 [2022-12-13 14:54:58,930 INFO L226 Difference]: Without dead ends: 326084 [2022-12-13 14:54:58,994 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 [2022-12-13 14:54:58,995 INFO L413 NwaCegarLoop]: 7230 mSDtfsCounter, 12256 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29482 mSolverCounterSat, 11755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12256 SdHoareTripleChecker+Valid, 7279 SdHoareTripleChecker+Invalid, 41237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11755 IncrementalHoareTripleChecker+Valid, 29482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:54:58,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12256 Valid, 7279 Invalid, 41237 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11755 Valid, 29482 Invalid, 0 Unknown, 0 Unchecked, 28.1s Time] [2022-12-13 14:54:59,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326084 states. [2022-12-13 14:55:01,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326084 to 326084. [2022-12-13 14:55:01,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326084 states, 326083 states have (on average 1.3035914169091918) internal successors, (425079), 326083 states have internal predecessors, (425079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:55:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326084 states to 326084 states and 425079 transitions. [2022-12-13 14:55:02,105 INFO L78 Accepts]: Start accepts. Automaton has 326084 states and 425079 transitions. Word has length 10150 [2022-12-13 14:55:02,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:55:02,106 INFO L495 AbstractCegarLoop]: Abstraction has 326084 states and 425079 transitions. [2022-12-13 14:55:02,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3378.6666666666665) internal successors, (10136), 2 states have internal predecessors, (10136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:55:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 326084 states and 425079 transitions. [2022-12-13 14:55:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10153 [2022-12-13 14:55:03,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:55:03,104 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:55:03,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:55:03,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:55:03,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:55:03,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1804254865, now seen corresponding path program 1 times [2022-12-13 14:55:03,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:55:03,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35263869] [2022-12-13 14:55:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:55:03,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:55:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:55:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:55:32,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:55:32,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35263869] [2022-12-13 14:55:32,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35263869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:55:32,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:55:32,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:55:32,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719620218] [2022-12-13 14:55:32,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:55:32,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:55:32,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:55:32,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:55:32,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:55:32,319 INFO L87 Difference]: Start difference. First operand 326084 states and 425079 transitions. Second operand has 3 states, 3 states have (on average 3384.0) internal successors, (10152), 2 states have internal predecessors, (10152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:55:59,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:55:59,992 INFO L93 Difference]: Finished difference Result 815206 states and 1047340 transitions. [2022-12-13 14:55:59,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:55:59,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3384.0) internal successors, (10152), 2 states have internal predecessors, (10152), 0 states have call successors, (0), 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 10152 [2022-12-13 14:55:59,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:56:00,514 INFO L225 Difference]: With dead ends: 815206 [2022-12-13 14:56:00,514 INFO L226 Difference]: Without dead ends: 489124 [2022-12-13 14:56:00,624 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 [2022-12-13 14:56:00,625 INFO L413 NwaCegarLoop]: 8145 mSDtfsCounter, 11069 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28559 mSolverCounterSat, 7491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11069 SdHoareTripleChecker+Valid, 8194 SdHoareTripleChecker+Invalid, 36050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7491 IncrementalHoareTripleChecker+Valid, 28559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:56:00,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11069 Valid, 8194 Invalid, 36050 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7491 Valid, 28559 Invalid, 0 Unknown, 0 Unchecked, 25.4s Time] [2022-12-13 14:56:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489124 states. [2022-12-13 14:56:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489124 to 489124. [2022-12-13 14:56:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489124 states, 489123 states have (on average 1.2361001220551886) internal successors, (604605), 489123 states have internal predecessors, (604605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:05,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489124 states to 489124 states and 604605 transitions. [2022-12-13 14:56:05,412 INFO L78 Accepts]: Start accepts. Automaton has 489124 states and 604605 transitions. Word has length 10152 [2022-12-13 14:56:05,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:56:05,413 INFO L495 AbstractCegarLoop]: Abstraction has 489124 states and 604605 transitions. [2022-12-13 14:56:05,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3384.0) internal successors, (10152), 2 states have internal predecessors, (10152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:56:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 489124 states and 604605 transitions. [2022-12-13 14:56:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2022-12-13 14:56:06,510 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:56:06,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:56:06,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:56:06,512 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:56:06,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:56:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash 137220284, now seen corresponding path program 1 times [2022-12-13 14:56:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:56:06,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210419359] [2022-12-13 14:56:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:56:06,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:56:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:56:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:56:26,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:56:26,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210419359] [2022-12-13 14:56:26,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210419359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:56:26,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:56:26,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:56:26,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701616934] [2022-12-13 14:56:26,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:56:26,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:56:26,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:56:26,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:56:26,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:56:26,195 INFO L87 Difference]: Start difference. First operand 489124 states and 604605 transitions. Second operand has 3 states, 3 states have (on average 3393.6666666666665) internal successors, (10181), 2 states have internal predecessors, (10181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:57:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:00,132 INFO L93 Difference]: Finished difference Result 1467366 states and 1813810 transitions. [2022-12-13 14:57:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:57:00,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3393.6666666666665) internal successors, (10181), 2 states have internal predecessors, (10181), 0 states have call successors, (0), 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 10181 [2022-12-13 14:57:00,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:01,324 INFO L225 Difference]: With dead ends: 1467366 [2022-12-13 14:57:01,324 INFO L226 Difference]: Without dead ends: 978244 [2022-12-13 14:57:01,504 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 [2022-12-13 14:57:01,505 INFO L413 NwaCegarLoop]: 8088 mSDtfsCounter, 11323 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30806 mSolverCounterSat, 11046 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11323 SdHoareTripleChecker+Valid, 8137 SdHoareTripleChecker+Invalid, 41852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11046 IncrementalHoareTripleChecker+Valid, 30806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:57:01,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11323 Valid, 8137 Invalid, 41852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11046 Valid, 30806 Invalid, 0 Unknown, 0 Unchecked, 30.1s Time] [2022-12-13 14:57:02,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978244 states. [2022-12-13 14:57:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978244 to 978244. [2022-12-13 14:57:09,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978244 states, 978243 states have (on average 1.1810531739046433) internal successors, (1155357), 978243 states have internal predecessors, (1155357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:57:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978244 states to 978244 states and 1155357 transitions. [2022-12-13 14:57:11,288 INFO L78 Accepts]: Start accepts. Automaton has 978244 states and 1155357 transitions. Word has length 10181 [2022-12-13 14:57:11,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:11,289 INFO L495 AbstractCegarLoop]: Abstraction has 978244 states and 1155357 transitions. [2022-12-13 14:57:11,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3393.6666666666665) internal successors, (10181), 2 states have internal predecessors, (10181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:57:11,291 INFO L276 IsEmpty]: Start isEmpty. Operand 978244 states and 1155357 transitions. [2022-12-13 14:57:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10272 [2022-12-13 14:57:13,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:13,012 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:57:13,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:57:13,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:13,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:13,014 INFO L85 PathProgramCache]: Analyzing trace with hash 108632925, now seen corresponding path program 1 times [2022-12-13 14:57:13,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:13,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408659571] [2022-12-13 14:57:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:13,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:34,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:34,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408659571] [2022-12-13 14:57:34,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408659571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:34,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:34,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:57:34,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955749215] [2022-12-13 14:57:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:34,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:57:34,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:34,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:57:34,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:57:34,137 INFO L87 Difference]: Start difference. First operand 978244 states and 1155357 transitions. Second operand has 3 states, 3 states have (on average 3423.6666666666665) internal successors, (10271), 2 states have internal predecessors, (10271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:12,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:58:12,791 INFO L93 Difference]: Finished difference Result 2934726 states and 3466066 transitions. [2022-12-13 14:58:12,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:58:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3423.6666666666665) internal successors, (10271), 2 states have internal predecessors, (10271), 0 states have call successors, (0), 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 10271 [2022-12-13 14:58:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:58:15,338 INFO L225 Difference]: With dead ends: 2934726 [2022-12-13 14:58:15,338 INFO L226 Difference]: Without dead ends: 1956484 [2022-12-13 14:58:15,803 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 [2022-12-13 14:58:15,804 INFO L413 NwaCegarLoop]: 6562 mSDtfsCounter, 12273 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30711 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12273 SdHoareTripleChecker+Valid, 6611 SdHoareTripleChecker+Invalid, 41212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 30711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:58:15,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12273 Valid, 6611 Invalid, 41212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 30711 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time] [2022-12-13 14:58:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956484 states. [2022-12-13 14:58:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956484 to 1936104. [2022-12-13 14:58:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936104 states, 1936103 states have (on average 1.1393283311889915) internal successors, (2205857), 1936103 states have internal predecessors, (2205857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936104 states to 1936104 states and 2205857 transitions. [2022-12-13 14:58:36,590 INFO L78 Accepts]: Start accepts. Automaton has 1936104 states and 2205857 transitions. Word has length 10271 [2022-12-13 14:58:36,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:58:36,590 INFO L495 AbstractCegarLoop]: Abstraction has 1936104 states and 2205857 transitions. [2022-12-13 14:58:36,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3423.6666666666665) internal successors, (10271), 2 states have internal predecessors, (10271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:58:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1936104 states and 2205857 transitions. [2022-12-13 14:58:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10468 [2022-12-13 14:58:39,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:58:39,700 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:58:39,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:58:39,700 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:58:39,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:58:39,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1252394314, now seen corresponding path program 1 times [2022-12-13 14:58:39,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:58:39,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310236436] [2022-12-13 14:58:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:58:39,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:58:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-12-13 14:59:04,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:04,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310236436] [2022-12-13 14:59:04,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310236436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:04,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:59:04,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:59:04,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352996953] [2022-12-13 14:59:04,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:04,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:59:04,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:04,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:59:04,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:59:04,129 INFO L87 Difference]: Start difference. First operand 1936104 states and 2205857 transitions. Second operand has 3 states, 3 states have (on average 3472.6666666666665) internal successors, (10418), 2 states have internal predecessors, (10418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)