./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/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_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/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_b9ae36da-b085-4ce4-a385-aa25eba4b474/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 6167950643e67727b303c7b99fc0839aa2067301d926538b67f3f160c480440e --- 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 12:36:50,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:36:50,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:36:50,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:36:50,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:36:50,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:36:50,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:36:50,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:36:50,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:36:50,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:36:50,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:36:50,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:36:50,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:36:50,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:36:50,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:36:50,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:36:50,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:36:50,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:36:50,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:36:50,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:36:50,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:36:50,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:36:50,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:36:50,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:36:50,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:36:50,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:36:50,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:36:50,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:36:50,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:36:50,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:36:50,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:36:50,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:36:50,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:36:50,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:36:50,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:36:50,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:36:50,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:36:50,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:36:50,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:36:50,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:36:50,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:36:50,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:36:50,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:36:50,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:36:50,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:36:50,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:36:50,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:36:50,735 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:36:50,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:36:50,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:36:50,736 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:36:50,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:36:50,736 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:36:50,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:36:50,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:36:50,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:36:50,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:36:50,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:36:50,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:36:50,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:36:50,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:36:50,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:36:50,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:36:50,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:36:50,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:36:50,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:36:50,739 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:36:50,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:36:50,739 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:36:50,739 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_b9ae36da-b085-4ce4-a385-aa25eba4b474/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6167950643e67727b303c7b99fc0839aa2067301d926538b67f3f160c480440e [2022-12-13 12:36:50,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:36:50,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:36:50,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:36:50,934 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:36:50,935 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:36:50,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c [2022-12-13 12:36:53,504 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:36:53,903 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:36:53,903 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c [2022-12-13 12:36:53,935 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/data/62540e781/5a0a0d6f520244aba646054dc83419e8/FLAG55603e5a8 [2022-12-13 12:36:54,076 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/data/62540e781/5a0a0d6f520244aba646054dc83419e8 [2022-12-13 12:36:54,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:36:54,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:36:54,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:36:54,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:36:54,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:36:54,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:36:54" (1/1) ... [2022-12-13 12:36:54,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418ab8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:54, skipping insertion in model container [2022-12-13 12:36:54,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:36:54" (1/1) ... [2022-12-13 12:36:54,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:36:54,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:36:55,720 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_b9ae36da-b085-4ce4-a385-aa25eba4b474/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[376251,376264] [2022-12-13 12:36:55,744 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_b9ae36da-b085-4ce4-a385-aa25eba4b474/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[383339,383352] [2022-12-13 12:36:55,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:36:55,999 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:36:56,851 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_b9ae36da-b085-4ce4-a385-aa25eba4b474/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[376251,376264] [2022-12-13 12:36:56,859 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_b9ae36da-b085-4ce4-a385-aa25eba4b474/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[383339,383352] [2022-12-13 12:36:56,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:36:56,934 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:36:56,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56 WrapperNode [2022-12-13 12:36:56,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:36:56,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:36:56,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:36:56,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:36:56,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,330 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2022-12-13 12:36:57,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:36:57,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:36:57,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:36:57,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:36:57,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,660 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:36:57,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:36:57,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:36:57,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:36:57,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (1/1) ... [2022-12-13 12:36:57,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:36:57,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:57,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:57,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9ae36da-b085-4ce4-a385-aa25eba4b474/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:36:57,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:36:57,811 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-12-13 12:36:57,812 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-12-13 12:36:57,812 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-12-13 12:36:57,812 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-12-13 12:36:57,812 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-12-13 12:36:57,812 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-12-13 12:36:57,812 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-12-13 12:36:57,812 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-12-13 12:36:57,812 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-12-13 12:36:57,812 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-12-13 12:36:57,812 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-12-13 12:36:57,813 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-12-13 12:36:57,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:36:57,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:36:57,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:36:57,926 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:36:57,928 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:37:03,476 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:37:03,493 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:37:03,493 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-12-13 12:37:03,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:37:03 BoogieIcfgContainer [2022-12-13 12:37:03,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:37:03,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:37:03,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:37:03,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:37:03,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:36:54" (1/3) ... [2022-12-13 12:37:03,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639e3646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:37:03, skipping insertion in model container [2022-12-13 12:37:03,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:56" (2/3) ... [2022-12-13 12:37:03,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639e3646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:37:03, skipping insertion in model container [2022-12-13 12:37:03,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:37:03" (3/3) ... [2022-12-13 12:37:03,503 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.13.cil-2.c [2022-12-13 12:37:03,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:37:03,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:37:03,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:37:03,589 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;@3a992a90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:37:03,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:37:03,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-12-13 12:37:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:03,612 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:03,613 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] [2022-12-13 12:37:03,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:03,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2022-12-13 12:37:03,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:03,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576598533] [2022-12-13 12:37:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:03,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:03,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:04,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:04,005 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 12:37:04,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:04,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576598533] [2022-12-13 12:37:04,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576598533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:04,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:04,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:37:04,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25555328] [2022-12-13 12:37:04,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:04,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:37:04,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:37:04,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:37:04,038 INFO L87 Difference]: Start difference. First operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:05,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:05,989 INFO L93 Difference]: Finished difference Result 5325 states and 9765 transitions. [2022-12-13 12:37:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:37:05,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:05,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:06,009 INFO L225 Difference]: With dead ends: 5325 [2022-12-13 12:37:06,010 INFO L226 Difference]: Without dead ends: 2676 [2022-12-13 12:37:06,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:37:06,018 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 1111 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 16883 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:06,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 16883 Invalid, 1171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 12:37:06,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-12-13 12:37:06,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-12-13 12:37:06,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8243569131832797) internal successors, (4539), 2490 states have internal predecessors, (4539), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-12-13 12:37:06,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2022-12-13 12:37:06,126 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2022-12-13 12:37:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:06,127 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2022-12-13 12:37:06,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2022-12-13 12:37:06,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:06,132 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:06,132 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] [2022-12-13 12:37:06,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:37:06,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:06,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:06,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2022-12-13 12:37:06,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:06,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49374009] [2022-12-13 12:37:06,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:06,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:06,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:06,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:06,345 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 12:37:06,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:06,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49374009] [2022-12-13 12:37:06,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49374009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:06,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:06,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:37:06,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451403163] [2022-12-13 12:37:06,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:06,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:37:06,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:06,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:37:06,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:37:06,350 INFO L87 Difference]: Start difference. First operand 2523 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:08,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:08,056 INFO L93 Difference]: Finished difference Result 3061 states and 5463 transitions. [2022-12-13 12:37:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:37:08,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:08,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:08,063 INFO L225 Difference]: With dead ends: 3061 [2022-12-13 12:37:08,064 INFO L226 Difference]: Without dead ends: 2676 [2022-12-13 12:37:08,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:37:08,066 INFO L413 NwaCegarLoop]: 4322 mSDtfsCounter, 1097 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 16610 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:08,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 16610 Invalid, 1170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 12:37:08,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-12-13 12:37:08,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-12-13 12:37:08,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8239549839228295) internal successors, (4538), 2490 states have internal predecessors, (4538), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-12-13 12:37:08,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2022-12-13 12:37:08,126 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2022-12-13 12:37:08,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:08,126 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2022-12-13 12:37:08,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2022-12-13 12:37:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:08,130 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:08,130 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] [2022-12-13 12:37:08,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:37:08,130 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:08,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:08,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2022-12-13 12:37:08,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:08,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706176315] [2022-12-13 12:37:08,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:08,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:08,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:08,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:08,355 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 12:37:08,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:08,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706176315] [2022-12-13 12:37:08,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706176315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:08,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:08,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:37:08,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32196469] [2022-12-13 12:37:08,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:08,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:37:08,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:08,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:37:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:37:08,358 INFO L87 Difference]: Start difference. First operand 2523 states and 4592 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:11,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:11,758 INFO L93 Difference]: Finished difference Result 3611 states and 6359 transitions. [2022-12-13 12:37:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:37:11,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:11,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:11,768 INFO L225 Difference]: With dead ends: 3611 [2022-12-13 12:37:11,768 INFO L226 Difference]: Without dead ends: 3230 [2022-12-13 12:37:11,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-13 12:37:11,770 INFO L413 NwaCegarLoop]: 4327 mSDtfsCounter, 5632 mSDsluCounter, 12879 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5652 SdHoareTripleChecker+Valid, 17206 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:11,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5652 Valid, 17206 Invalid, 2660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 12:37:11,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-12-13 12:37:11,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2925. [2022-12-13 12:37:11,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7948269835721775) internal successors, (5135), 2864 states have internal predecessors, (5135), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-12-13 12:37:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5236 transitions. [2022-12-13 12:37:11,861 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5236 transitions. Word has length 189 [2022-12-13 12:37:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:11,861 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 5236 transitions. [2022-12-13 12:37:11,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:11,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5236 transitions. [2022-12-13 12:37:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:11,863 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:11,863 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] [2022-12-13 12:37:11,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:37:11,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:11,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:11,864 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2022-12-13 12:37:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:11,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143985300] [2022-12-13 12:37:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:12,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:12,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:12,097 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 12:37:12,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:12,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143985300] [2022-12-13 12:37:12,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143985300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:12,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:12,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:37:12,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792225075] [2022-12-13 12:37:12,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:12,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:37:12,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:12,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:37:12,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:37:12,099 INFO L87 Difference]: Start difference. First operand 2925 states and 5236 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:15,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:15,773 INFO L93 Difference]: Finished difference Result 4589 states and 7942 transitions. [2022-12-13 12:37:15,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:37:15,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:15,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:15,796 INFO L225 Difference]: With dead ends: 4589 [2022-12-13 12:37:15,796 INFO L226 Difference]: Without dead ends: 3806 [2022-12-13 12:37:15,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:37:15,801 INFO L413 NwaCegarLoop]: 4544 mSDtfsCounter, 5679 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5699 SdHoareTripleChecker+Valid, 22373 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:15,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5699 Valid, 22373 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 12:37:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-12-13 12:37:15,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3298. [2022-12-13 12:37:15,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 3205 states have (on average 1.7703588143525741) internal successors, (5674), 3209 states have internal predecessors, (5674), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-12-13 12:37:15,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5821 transitions. [2022-12-13 12:37:15,983 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5821 transitions. Word has length 189 [2022-12-13 12:37:15,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:15,984 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5821 transitions. [2022-12-13 12:37:15,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5821 transitions. [2022-12-13 12:37:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:15,986 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:15,986 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] [2022-12-13 12:37:15,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:37:15,986 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1053329399, now seen corresponding path program 1 times [2022-12-13 12:37:15,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:15,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105208371] [2022-12-13 12:37:15,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:15,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:16,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:16,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:16,202 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 12:37:16,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:16,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105208371] [2022-12-13 12:37:16,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105208371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:16,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:16,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:37:16,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435369642] [2022-12-13 12:37:16,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:16,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:37:16,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:16,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:37:16,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:37:16,204 INFO L87 Difference]: Start difference. First operand 3298 states and 5821 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:20,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:20,204 INFO L93 Difference]: Finished difference Result 6030 states and 10255 transitions. [2022-12-13 12:37:20,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:37:20,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:20,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:20,215 INFO L225 Difference]: With dead ends: 6030 [2022-12-13 12:37:20,215 INFO L226 Difference]: Without dead ends: 4874 [2022-12-13 12:37:20,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:37:20,218 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5673 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3824 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5693 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:20,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5693 Valid, 22371 Invalid, 3891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3824 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 12:37:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2022-12-13 12:37:20,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4048. [2022-12-13 12:37:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 3897 states have (on average 1.7344110854503465) internal successors, (6759), 3903 states have internal predecessors, (6759), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-12-13 12:37:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 7002 transitions. [2022-12-13 12:37:20,412 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 7002 transitions. Word has length 189 [2022-12-13 12:37:20,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:20,412 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 7002 transitions. [2022-12-13 12:37:20,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 7002 transitions. [2022-12-13 12:37:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:20,415 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:20,415 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] [2022-12-13 12:37:20,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:37:20,415 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:20,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:20,415 INFO L85 PathProgramCache]: Analyzing trace with hash -483057593, now seen corresponding path program 1 times [2022-12-13 12:37:20,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:20,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669422779] [2022-12-13 12:37:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:20,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:20,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:20,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:20,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:20,617 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 12:37:20,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:20,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669422779] [2022-12-13 12:37:20,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669422779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:20,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:20,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:37:20,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334270509] [2022-12-13 12:37:20,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:20,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:37:20,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:20,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:37:20,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:37:20,619 INFO L87 Difference]: Start difference. First operand 4048 states and 7002 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:25,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:25,081 INFO L93 Difference]: Finished difference Result 8806 states and 14680 transitions. [2022-12-13 12:37:25,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:37:25,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:25,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:25,100 INFO L225 Difference]: With dead ends: 8806 [2022-12-13 12:37:25,101 INFO L226 Difference]: Without dead ends: 6900 [2022-12-13 12:37:25,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:37:25,107 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5672 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3811 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5692 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:25,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5692 Valid, 22371 Invalid, 3878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3811 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-13 12:37:25,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2022-12-13 12:37:25,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 5549. [2022-12-13 12:37:25,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 5282 states have (on average 1.690458159787959) internal successors, (8929), 5292 states have internal predecessors, (8929), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-12-13 12:37:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 9370 transitions. [2022-12-13 12:37:25,504 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 9370 transitions. Word has length 189 [2022-12-13 12:37:25,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:25,505 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 9370 transitions. [2022-12-13 12:37:25,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:25,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 9370 transitions. [2022-12-13 12:37:25,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:25,509 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:25,509 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] [2022-12-13 12:37:25,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:37:25,510 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:25,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:25,510 INFO L85 PathProgramCache]: Analyzing trace with hash 920811593, now seen corresponding path program 1 times [2022-12-13 12:37:25,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:25,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391128874] [2022-12-13 12:37:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:25,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:25,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:25,739 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 12:37:25,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:25,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391128874] [2022-12-13 12:37:25,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391128874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:25,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:25,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:37:25,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326047022] [2022-12-13 12:37:25,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:25,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:37:25,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:25,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:37:25,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:37:25,741 INFO L87 Difference]: Start difference. First operand 5549 states and 9370 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:30,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:30,105 INFO L93 Difference]: Finished difference Result 14357 states and 23546 transitions. [2022-12-13 12:37:30,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:37:30,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:30,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:30,147 INFO L225 Difference]: With dead ends: 14357 [2022-12-13 12:37:30,148 INFO L226 Difference]: Without dead ends: 10950 [2022-12-13 12:37:30,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:37:30,154 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5671 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3798 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5691 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:30,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5691 Valid, 22371 Invalid, 3865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3798 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 12:37:30,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-12-13 12:37:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 8558. [2022-12-13 12:37:30,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8059 states have (on average 1.6477230425611118) internal successors, (13279), 8077 states have internal predecessors, (13279), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-12-13 12:37:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 14134 transitions. [2022-12-13 12:37:30,804 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 14134 transitions. Word has length 189 [2022-12-13 12:37:30,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:30,804 INFO L495 AbstractCegarLoop]: Abstraction has 8558 states and 14134 transitions. [2022-12-13 12:37:30,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:30,804 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 14134 transitions. [2022-12-13 12:37:30,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:30,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:30,807 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] [2022-12-13 12:37:30,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:37:30,807 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:30,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash 134813703, now seen corresponding path program 1 times [2022-12-13 12:37:30,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:30,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292234501] [2022-12-13 12:37:30,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:30,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:30,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:30,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:30,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:31,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:31,005 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 12:37:31,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:31,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292234501] [2022-12-13 12:37:31,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292234501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:31,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:31,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:37:31,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3926224] [2022-12-13 12:37:31,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:31,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:37:31,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:31,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:37:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:37:31,008 INFO L87 Difference]: Start difference. First operand 8558 states and 14134 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:36,551 INFO L93 Difference]: Finished difference Result 25460 states and 41340 transitions. [2022-12-13 12:37:36,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:37:36,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:36,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:36,615 INFO L225 Difference]: With dead ends: 25460 [2022-12-13 12:37:36,615 INFO L226 Difference]: Without dead ends: 19044 [2022-12-13 12:37:36,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:37:36,626 INFO L413 NwaCegarLoop]: 4332 mSDtfsCounter, 5782 mSDsluCounter, 17145 mSDsCounter, 0 mSdLazyCounter, 3375 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5802 SdHoareTripleChecker+Valid, 21477 SdHoareTripleChecker+Invalid, 3478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:36,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5802 Valid, 21477 Invalid, 3478 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3375 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 12:37:36,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2022-12-13 12:37:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 14591. [2022-12-13 12:37:37,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.6143968300557676) internal successors, (22001), 13662 states have internal predecessors, (22001), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-12-13 12:37:37,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23738 transitions. [2022-12-13 12:37:37,949 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23738 transitions. Word has length 189 [2022-12-13 12:37:37,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:37,949 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23738 transitions. [2022-12-13 12:37:37,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:37,949 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23738 transitions. [2022-12-13 12:37:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:37,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:37,955 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] [2022-12-13 12:37:37,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:37:37,955 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:37,956 INFO L85 PathProgramCache]: Analyzing trace with hash 802195593, now seen corresponding path program 1 times [2022-12-13 12:37:37,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:37,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389350178] [2022-12-13 12:37:37,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:37,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:38,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:38,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:38,141 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 12:37:38,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:38,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389350178] [2022-12-13 12:37:38,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389350178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:38,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:38,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:37:38,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018707048] [2022-12-13 12:37:38,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:38,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:37:38,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:38,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:37:38,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:37:38,143 INFO L87 Difference]: Start difference. First operand 14591 states and 23738 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:42,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:42,480 INFO L93 Difference]: Finished difference Result 31774 states and 51709 transitions. [2022-12-13 12:37:42,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:37:42,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:42,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:42,534 INFO L225 Difference]: With dead ends: 31774 [2022-12-13 12:37:42,534 INFO L226 Difference]: Without dead ends: 19325 [2022-12-13 12:37:42,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 12:37:42,557 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 5180 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5201 SdHoareTripleChecker+Valid, 21099 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:42,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5201 Valid, 21099 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 12:37:42,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2022-12-13 12:37:44,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 14591. [2022-12-13 12:37:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.611975344878192) internal successors, (21968), 13662 states have internal predecessors, (21968), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-12-13 12:37:44,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23705 transitions. [2022-12-13 12:37:44,148 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23705 transitions. Word has length 189 [2022-12-13 12:37:44,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:44,148 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23705 transitions. [2022-12-13 12:37:44,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23705 transitions. [2022-12-13 12:37:44,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:44,153 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:44,154 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] [2022-12-13 12:37:44,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:37:44,154 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:44,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:44,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1393033273, now seen corresponding path program 1 times [2022-12-13 12:37:44,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:44,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473432347] [2022-12-13 12:37:44,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:44,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:44,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:44,339 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 12:37:44,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:44,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473432347] [2022-12-13 12:37:44,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473432347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:44,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:44,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:37:44,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328325454] [2022-12-13 12:37:44,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:44,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:37:44,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:44,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:37:44,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:37:44,341 INFO L87 Difference]: Start difference. First operand 14591 states and 23705 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:52,888 INFO L93 Difference]: Finished difference Result 47633 states and 76890 transitions. [2022-12-13 12:37:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:37:52,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:37:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:52,956 INFO L225 Difference]: With dead ends: 47633 [2022-12-13 12:37:52,956 INFO L226 Difference]: Without dead ends: 35184 [2022-12-13 12:37:52,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:37:52,985 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5662 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5682 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:52,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5682 Valid, 22371 Invalid, 3814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3747 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 12:37:53,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35184 states. [2022-12-13 12:37:56,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35184 to 26721. [2022-12-13 12:37:56,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26721 states, 24830 states have (on average 1.5892066049134113) internal successors, (39460), 24896 states have internal predecessors, (39460), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-12-13 12:37:56,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26721 states to 26721 states and 43123 transitions. [2022-12-13 12:37:56,131 INFO L78 Accepts]: Start accepts. Automaton has 26721 states and 43123 transitions. Word has length 189 [2022-12-13 12:37:56,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:56,132 INFO L495 AbstractCegarLoop]: Abstraction has 26721 states and 43123 transitions. [2022-12-13 12:37:56,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:56,132 INFO L276 IsEmpty]: Start isEmpty. Operand 26721 states and 43123 transitions. [2022-12-13 12:37:56,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:37:56,139 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:56,139 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] [2022-12-13 12:37:56,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:37:56,139 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:37:56,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:56,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1048205111, now seen corresponding path program 1 times [2022-12-13 12:37:56,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:56,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101664918] [2022-12-13 12:37:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:56,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:37:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:56,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:37:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:37:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:56,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:37:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:56,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:37:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:37:56,331 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 12:37:56,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:56,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101664918] [2022-12-13 12:37:56,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101664918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:37:56,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:37:56,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:37:56,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272460725] [2022-12-13 12:37:56,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:37:56,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:37:56,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:56,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:37:56,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:37:56,333 INFO L87 Difference]: Start difference. First operand 26721 states and 43123 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:38:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:38:10,930 INFO L93 Difference]: Finished difference Result 92049 states and 148866 transitions. [2022-12-13 12:38:10,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:38:10,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:38:10,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:38:11,107 INFO L225 Difference]: With dead ends: 92049 [2022-12-13 12:38:11,107 INFO L226 Difference]: Without dead ends: 67470 [2022-12-13 12:38:11,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:38:11,167 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5667 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5687 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:38:11,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5687 Valid, 22371 Invalid, 3796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-13 12:38:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67470 states. [2022-12-13 12:38:17,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67470 to 51042. [2022-12-13 12:38:17,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.575938259858336) internal successors, (74534), 47425 states have internal predecessors, (74534), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-12-13 12:38:17,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82535 transitions. [2022-12-13 12:38:17,389 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82535 transitions. Word has length 189 [2022-12-13 12:38:17,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:38:17,389 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82535 transitions. [2022-12-13 12:38:17,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:38:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82535 transitions. [2022-12-13 12:38:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:38:17,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:38:17,402 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] [2022-12-13 12:38:17,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:38:17,403 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:38:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:38:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash -67250297, now seen corresponding path program 1 times [2022-12-13 12:38:17,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:38:17,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190344086] [2022-12-13 12:38:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:38:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:38:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:38:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:38:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:38:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:17,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:38:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:17,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:38:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:17,575 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 12:38:17,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:38:17,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190344086] [2022-12-13 12:38:17,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190344086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:38:17,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:38:17,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:38:17,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036035126] [2022-12-13 12:38:17,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:38:17,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:38:17,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:38:17,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:38:17,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:38:17,576 INFO L87 Difference]: Start difference. First operand 51042 states and 82535 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:38:30,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:38:30,818 INFO L93 Difference]: Finished difference Result 117340 states and 192222 transitions. [2022-12-13 12:38:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:38:30,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:38:30,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:38:31,003 INFO L225 Difference]: With dead ends: 117340 [2022-12-13 12:38:31,003 INFO L226 Difference]: Without dead ends: 68440 [2022-12-13 12:38:31,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 12:38:31,100 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 5184 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 21099 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 12:38:31,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 21099 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 12:38:31,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68440 states. [2022-12-13 12:38:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68440 to 51042. [2022-12-13 12:38:37,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.5732106988053705) internal successors, (74405), 47425 states have internal predecessors, (74405), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-12-13 12:38:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82406 transitions. [2022-12-13 12:38:37,807 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82406 transitions. Word has length 189 [2022-12-13 12:38:37,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:38:37,808 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82406 transitions. [2022-12-13 12:38:37,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:38:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82406 transitions. [2022-12-13 12:38:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:38:37,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:38:37,821 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] [2022-12-13 12:38:37,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 12:38:37,821 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:38:37,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:38:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash -678519355, now seen corresponding path program 1 times [2022-12-13 12:38:37,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:38:37,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352568642] [2022-12-13 12:38:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:38:37,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:38:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:37,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:38:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:37,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:38:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:38:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:38:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:37,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:38:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:37,990 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 12:38:37,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:38:37,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352568642] [2022-12-13 12:38:37,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352568642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:38:37,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:38:37,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:38:37,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542563206] [2022-12-13 12:38:37,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:38:37,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:38:37,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:38:37,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:38:37,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:38:37,992 INFO L87 Difference]: Start difference. First operand 51042 states and 82406 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:39:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:39:04,041 INFO L93 Difference]: Finished difference Result 180620 states and 293500 transitions. [2022-12-13 12:39:04,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:39:04,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:39:04,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:39:04,409 INFO L225 Difference]: With dead ends: 180620 [2022-12-13 12:39:04,409 INFO L226 Difference]: Without dead ends: 131720 [2022-12-13 12:39:04,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:39:04,525 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5655 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5675 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:39:04,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5675 Valid, 22371 Invalid, 3744 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-13 12:39:04,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131720 states. [2022-12-13 12:39:18,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131720 to 100069. [2022-12-13 12:39:18,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100069 states, 92610 states have (on average 1.5657380412482453) internal successors, (145003), 92868 states have internal predecessors, (145003), 5659 states have call successors, (5659), 1542 states have call predecessors, (5659), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2022-12-13 12:39:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100069 states to 100069 states and 163138 transitions. [2022-12-13 12:39:18,349 INFO L78 Accepts]: Start accepts. Automaton has 100069 states and 163138 transitions. Word has length 189 [2022-12-13 12:39:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:39:18,349 INFO L495 AbstractCegarLoop]: Abstraction has 100069 states and 163138 transitions. [2022-12-13 12:39:18,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:39:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 100069 states and 163138 transitions. [2022-12-13 12:39:18,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:39:18,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:39:18,376 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] [2022-12-13 12:39:18,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 12:39:18,376 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:39:18,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:18,377 INFO L85 PathProgramCache]: Analyzing trace with hash -2083711033, now seen corresponding path program 1 times [2022-12-13 12:39:18,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:39:18,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082249876] [2022-12-13 12:39:18,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:18,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:39:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:18,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:39:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:39:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:39:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:18,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:39:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:39:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:18,541 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 12:39:18,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:39:18,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082249876] [2022-12-13 12:39:18,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082249876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:39:18,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:39:18,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:39:18,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368196993] [2022-12-13 12:39:18,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:39:18,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:39:18,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:39:18,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:39:18,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:39:18,543 INFO L87 Difference]: Start difference. First operand 100069 states and 163138 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:40:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:40:09,439 INFO L93 Difference]: Finished difference Result 358285 states and 589974 transitions. [2022-12-13 12:40:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:40:09,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:40:09,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:40:10,312 INFO L225 Difference]: With dead ends: 358285 [2022-12-13 12:40:10,312 INFO L226 Difference]: Without dead ends: 260358 [2022-12-13 12:40:10,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:40:10,584 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5654 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3664 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5674 SdHoareTripleChecker+Valid, 22371 SdHoareTripleChecker+Invalid, 3731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 12:40:10,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5674 Valid, 22371 Invalid, 3731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3664 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 12:40:10,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260358 states. [2022-12-13 12:40:39,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260358 to 198374. [2022-12-13 12:40:39,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198374 states, 183491 states have (on average 1.5617823217487505) internal successors, (286573), 184005 states have internal predecessors, (286573), 11291 states have call successors, (11291), 3078 states have call predecessors, (11291), 3590 states have return successors, (31486), 11802 states have call predecessors, (31486), 11291 states have call successors, (31486) [2022-12-13 12:40:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198374 states to 198374 states and 329350 transitions. [2022-12-13 12:40:40,520 INFO L78 Accepts]: Start accepts. Automaton has 198374 states and 329350 transitions. Word has length 189 [2022-12-13 12:40:40,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:40:40,521 INFO L495 AbstractCegarLoop]: Abstraction has 198374 states and 329350 transitions. [2022-12-13 12:40:40,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:40:40,521 INFO L276 IsEmpty]: Start isEmpty. Operand 198374 states and 329350 transitions. [2022-12-13 12:40:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:40:40,574 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:40:40,574 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] [2022-12-13 12:40:40,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 12:40:40,574 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:40:40,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:40:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash -189377147, now seen corresponding path program 1 times [2022-12-13 12:40:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:40:40,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240792511] [2022-12-13 12:40:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:40:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:40:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:40:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:40:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:40:40,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:40:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:40:40,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:40:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:40:40,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:40:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:40:40,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:40:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:40:40,727 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 12:40:40,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:40:40,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240792511] [2022-12-13 12:40:40,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240792511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:40:40,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:40:40,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:40:40,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371546737] [2022-12-13 12:40:40,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:40:40,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:40:40,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:40:40,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:40:40,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:40:40,728 INFO L87 Difference]: Start difference. First operand 198374 states and 329350 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:43:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:43:09,959 INFO L93 Difference]: Finished difference Result 811404 states and 1350558 transitions. [2022-12-13 12:43:09,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:43:09,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-12-13 12:43:09,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:43:12,413 INFO L225 Difference]: With dead ends: 811404 [2022-12-13 12:43:12,413 INFO L226 Difference]: Without dead ends: 615172 [2022-12-13 12:43:13,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 12:43:13,227 INFO L413 NwaCegarLoop]: 4332 mSDtfsCounter, 6276 mSDsluCounter, 17141 mSDsCounter, 0 mSdLazyCounter, 3284 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6310 SdHoareTripleChecker+Valid, 21473 SdHoareTripleChecker+Invalid, 3390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:43:13,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6310 Valid, 21473 Invalid, 3390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [106 Valid, 3284 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-13 12:43:13,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615172 states. [2022-12-13 12:44:17,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615172 to 393959. [2022-12-13 12:44:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393959 states, 364740 states have (on average 1.5612628173493448) internal successors, (569455), 365766 states have internal predecessors, (569455), 22043 states have call successors, (22043), 6150 states have call predecessors, (22043), 7174 states have return successors, (82116), 23066 states have call predecessors, (82116), 22043 states have call successors, (82116) [2022-12-13 12:44:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393959 states to 393959 states and 673614 transitions. [2022-12-13 12:44:19,899 INFO L78 Accepts]: Start accepts. Automaton has 393959 states and 673614 transitions. Word has length 189 [2022-12-13 12:44:19,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:44:19,899 INFO L495 AbstractCegarLoop]: Abstraction has 393959 states and 673614 transitions. [2022-12-13 12:44:19,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:44:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 393959 states and 673614 transitions. [2022-12-13 12:44:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 12:44:20,007 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:44:20,007 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] [2022-12-13 12:44:20,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 12:44:20,007 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:44:20,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:44:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1257203719, now seen corresponding path program 1 times [2022-12-13 12:44:20,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:44:20,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713947001] [2022-12-13 12:44:20,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:44:20,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:44:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 12:44:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 12:44:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 12:44:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 12:44:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 12:44:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:44:20,260 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 12:44:20,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:44:20,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713947001] [2022-12-13 12:44:20,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713947001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:44:20,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:44:20,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:44:20,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573099460] [2022-12-13 12:44:20,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:44:20,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:44:20,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:44:20,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:44:20,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:44:20,262 INFO L87 Difference]: Start difference. First operand 393959 states and 673614 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)