./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label40+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_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/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_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/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_cdf9b881-d5ba-4b35-a00c-0fb114273cec/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 19aa3a10df20aa66b298603653689263cc3fd1e3f00b1be832baa1f64aefda99 --- 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 15:51:49,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:51:49,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:51:49,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:51:49,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:51:49,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:51:49,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:51:49,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:51:49,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:51:49,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:51:49,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:51:49,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:51:49,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:51:49,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:51:49,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:51:49,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:51:49,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:51:49,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:51:49,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:51:49,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:51:49,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:51:49,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:51:49,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:51:49,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:51:49,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:51:49,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:51:49,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:51:49,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:51:49,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:51:49,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:51:49,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:51:49,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:51:49,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:51:49,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:51:49,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:51:49,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:51:49,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:51:49,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:51:49,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:51:49,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:51:49,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:51:49,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:51:49,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:51:49,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:51:49,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:51:49,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:51:49,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:51:49,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:51:49,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:51:49,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:51:49,704 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:51:49,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:51:49,704 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:51:49,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:51:49,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:51:49,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:51:49,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:51:49,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:51:49,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:51:49,705 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:51:49,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:51:49,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:51:49,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:51:49,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:51:49,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:51:49,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:51:49,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:51:49,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:51:49,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:51:49,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:51:49,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:51:49,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:51:49,707 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:51:49,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:51:49,707 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:51:49,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:51:49,707 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:51:49,707 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_cdf9b881-d5ba-4b35-a00c-0fb114273cec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19aa3a10df20aa66b298603653689263cc3fd1e3f00b1be832baa1f64aefda99 [2022-12-13 15:51:49,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:51:49,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:51:49,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:51:49,898 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:51:49,898 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:51:49,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c [2022-12-13 15:51:52,515 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:51:52,961 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:51:52,962 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c [2022-12-13 15:51:52,995 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/data/39cccacb6/62ace764c8a64d2db5203ebfe48cea15/FLAG51644a0a4 [2022-12-13 15:51:53,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/data/39cccacb6/62ace764c8a64d2db5203ebfe48cea15 [2022-12-13 15:51:53,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:51:53,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:51:53,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:51:53,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:51:53,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:51:53,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:51:53" (1/1) ... [2022-12-13 15:51:53,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63abf4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:53, skipping insertion in model container [2022-12-13 15:51:53,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:51:53" (1/1) ... [2022-12-13 15:51:53,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:51:53,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:51:54,596 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_cdf9b881-d5ba-4b35-a00c-0fb114273cec/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[377069,377082] [2022-12-13 15:51:54,622 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_cdf9b881-d5ba-4b35-a00c-0fb114273cec/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[383339,383352] [2022-12-13 15:51:54,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:51:54,888 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:51:55,718 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_cdf9b881-d5ba-4b35-a00c-0fb114273cec/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[377069,377082] [2022-12-13 15:51:55,723 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_cdf9b881-d5ba-4b35-a00c-0fb114273cec/sv-benchmarks/c/combinations/Problem05_label40+token_ring.13.cil-2.c[383339,383352] [2022-12-13 15:51:55,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:51:55,773 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:51:55,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55 WrapperNode [2022-12-13 15:51:55,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:51:55,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:51:55,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:51:55,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:51:55,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:55,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,147 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2022-12-13 15:51:56,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:51:56,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:51:56,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:51:56,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:51:56,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:51:56,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:51:56,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:51:56,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:51:56,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (1/1) ... [2022-12-13 15:51:56,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:51:56,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:51:56,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:51:56,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf9b881-d5ba-4b35-a00c-0fb114273cec/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:51:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:51:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-12-13 15:51:56,546 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-12-13 15:51:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-12-13 15:51:56,546 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-12-13 15:51:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-12-13 15:51:56,547 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-12-13 15:51:56,547 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-12-13 15:51:56,547 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-12-13 15:51:56,547 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-12-13 15:51:56,547 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-12-13 15:51:56,547 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-12-13 15:51:56,547 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-12-13 15:51:56,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:51:56,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:51:56,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:51:56,659 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:51:56,661 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:52:02,296 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:52:02,321 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:52:02,321 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-12-13 15:52:02,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:52:02 BoogieIcfgContainer [2022-12-13 15:52:02,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:52:02,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:52:02,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:52:02,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:52:02,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:51:53" (1/3) ... [2022-12-13 15:52:02,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419ae23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:52:02, skipping insertion in model container [2022-12-13 15:52:02,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:51:55" (2/3) ... [2022-12-13 15:52:02,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419ae23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:52:02, skipping insertion in model container [2022-12-13 15:52:02,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:52:02" (3/3) ... [2022-12-13 15:52:02,333 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.13.cil-2.c [2022-12-13 15:52:02,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:52:02,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:52:02,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:52:02,434 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;@13559d09, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:52:02,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:52:02,444 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 15:52:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:02,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:02,462 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 15:52:02,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:02,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2022-12-13 15:52:02,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:02,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516521501] [2022-12-13 15:52:02,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:02,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:02,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:02,956 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 15:52:02,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:02,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516521501] [2022-12-13 15:52:02,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516521501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:02,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:02,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:52:02,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94155098] [2022-12-13 15:52:02,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:02,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:52:02,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:02,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:52:02,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:52:02,991 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 15:52:04,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:04,957 INFO L93 Difference]: Finished difference Result 5325 states and 9765 transitions. [2022-12-13 15:52:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:52:04,960 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 15:52:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:04,986 INFO L225 Difference]: With dead ends: 5325 [2022-12-13 15:52:04,987 INFO L226 Difference]: Without dead ends: 2676 [2022-12-13 15:52:04,996 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 15:52:04,999 INFO L413 NwaCegarLoop]: 4392 mSDtfsCounter, 1111 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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 15:52:05,000 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 15:52:05,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-12-13 15:52:05,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-12-13 15:52:05,126 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 15:52:05,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2022-12-13 15:52:05,138 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2022-12-13 15:52:05,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:05,138 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2022-12-13 15:52:05,139 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 15:52:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2022-12-13 15:52:05,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:05,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:05,145 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 15:52:05,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:52:05,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:05,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2022-12-13 15:52:05,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:05,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618626498] [2022-12-13 15:52:05,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:05,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:05,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:05,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:05,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:05,378 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 15:52:05,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:05,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618626498] [2022-12-13 15:52:05,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618626498] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:05,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:05,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:52:05,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210204268] [2022-12-13 15:52:05,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:05,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:52:05,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:05,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:52:05,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:52:05,381 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 15:52:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:07,354 INFO L93 Difference]: Finished difference Result 3061 states and 5463 transitions. [2022-12-13 15:52:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:52:07,354 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 15:52:07,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:07,363 INFO L225 Difference]: With dead ends: 3061 [2022-12-13 15:52:07,363 INFO L226 Difference]: Without dead ends: 2676 [2022-12-13 15:52:07,364 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 15:52:07,365 INFO L413 NwaCegarLoop]: 4322 mSDtfsCounter, 1097 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 16610 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:07,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 16610 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 15:52:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-12-13 15:52:07,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-12-13 15:52:07,420 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 15:52:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2022-12-13 15:52:07,425 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2022-12-13 15:52:07,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:07,425 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2022-12-13 15:52:07,425 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 15:52:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2022-12-13 15:52:07,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:07,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:07,428 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 15:52:07,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:52:07,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:07,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:07,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2022-12-13 15:52:07,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:07,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66614950] [2022-12-13 15:52:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:07,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:07,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:07,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:07,658 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 15:52:07,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:07,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66614950] [2022-12-13 15:52:07,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66614950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:07,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:07,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:52:07,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050121438] [2022-12-13 15:52:07,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:07,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:52:07,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:07,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:52:07,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:52:07,660 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 15:52:10,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:10,446 INFO L93 Difference]: Finished difference Result 3611 states and 6359 transitions. [2022-12-13 15:52:10,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:52:10,446 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 15:52:10,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:10,454 INFO L225 Difference]: With dead ends: 3611 [2022-12-13 15:52:10,454 INFO L226 Difference]: Without dead ends: 3230 [2022-12-13 15:52:10,456 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 15:52:10,457 INFO L413 NwaCegarLoop]: 4327 mSDtfsCounter, 5632 mSDsluCounter, 12879 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:10,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5652 Valid, 17206 Invalid, 2660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 15:52:10,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-12-13 15:52:10,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2925. [2022-12-13 15:52:10,547 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 15:52:10,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5236 transitions. [2022-12-13 15:52:10,553 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5236 transitions. Word has length 189 [2022-12-13 15:52:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:10,554 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 5236 transitions. [2022-12-13 15:52:10,554 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 15:52:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5236 transitions. [2022-12-13 15:52:10,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:10,556 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:10,556 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 15:52:10,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:52:10,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:10,557 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2022-12-13 15:52:10,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:10,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170874273] [2022-12-13 15:52:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:10,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:10,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:10,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:10,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:10,804 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 15:52:10,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:10,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170874273] [2022-12-13 15:52:10,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170874273] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:10,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:10,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:52:10,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444402837] [2022-12-13 15:52:10,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:10,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:10,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:10,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:10,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:10,806 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 15:52:14,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:14,693 INFO L93 Difference]: Finished difference Result 4589 states and 7942 transitions. [2022-12-13 15:52:14,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:52:14,694 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 15:52:14,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:14,703 INFO L225 Difference]: With dead ends: 4589 [2022-12-13 15:52:14,703 INFO L226 Difference]: Without dead ends: 3806 [2022-12-13 15:52:14,706 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 15:52:14,707 INFO L413 NwaCegarLoop]: 4544 mSDtfsCounter, 5679 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:14,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5699 Valid, 22373 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 15:52:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-12-13 15:52:14,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3298. [2022-12-13 15:52:14,835 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 15:52:14,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5821 transitions. [2022-12-13 15:52:14,841 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5821 transitions. Word has length 189 [2022-12-13 15:52:14,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:14,841 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5821 transitions. [2022-12-13 15:52:14,842 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 15:52:14,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5821 transitions. [2022-12-13 15:52:14,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:14,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:14,844 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 15:52:14,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:52:14,844 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:14,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1053329399, now seen corresponding path program 1 times [2022-12-13 15:52:14,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:14,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862907890] [2022-12-13 15:52:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:14,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:14,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:15,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:15,067 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 15:52:15,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:15,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862907890] [2022-12-13 15:52:15,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862907890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:15,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:15,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:52:15,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980443497] [2022-12-13 15:52:15,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:15,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:15,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:15,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:15,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:15,070 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 15:52:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:19,095 INFO L93 Difference]: Finished difference Result 6030 states and 10255 transitions. [2022-12-13 15:52:19,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:52:19,096 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 15:52:19,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:19,113 INFO L225 Difference]: With dead ends: 6030 [2022-12-13 15:52:19,113 INFO L226 Difference]: Without dead ends: 4874 [2022-12-13 15:52:19,118 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 15:52:19,119 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, 3.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:19,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5693 Valid, 22371 Invalid, 3891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3824 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-13 15:52:19,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2022-12-13 15:52:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4048. [2022-12-13 15:52:19,349 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 15:52:19,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 7002 transitions. [2022-12-13 15:52:19,359 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 7002 transitions. Word has length 189 [2022-12-13 15:52:19,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:19,359 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 7002 transitions. [2022-12-13 15:52:19,359 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 15:52:19,359 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 7002 transitions. [2022-12-13 15:52:19,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:19,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:19,362 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 15:52:19,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:52:19,362 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:19,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:19,362 INFO L85 PathProgramCache]: Analyzing trace with hash -483057593, now seen corresponding path program 1 times [2022-12-13 15:52:19,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:19,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015002097] [2022-12-13 15:52:19,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:19,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:19,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:19,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:19,584 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 15:52:19,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:19,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015002097] [2022-12-13 15:52:19,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015002097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:19,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:19,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:52:19,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9435387] [2022-12-13 15:52:19,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:19,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:19,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:19,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:19,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:19,587 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 15:52:23,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:23,528 INFO L93 Difference]: Finished difference Result 8806 states and 14680 transitions. [2022-12-13 15:52:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:52:23,529 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 15:52:23,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:23,549 INFO L225 Difference]: With dead ends: 8806 [2022-12-13 15:52:23,550 INFO L226 Difference]: Without dead ends: 6900 [2022-12-13 15:52:23,555 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 15:52:23,556 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5672 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3811 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:23,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5692 Valid, 22371 Invalid, 3878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3811 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-13 15:52:23,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2022-12-13 15:52:23,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 5549. [2022-12-13 15:52:23,891 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 15:52:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 9370 transitions. [2022-12-13 15:52:23,901 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 9370 transitions. Word has length 189 [2022-12-13 15:52:23,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:23,902 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 9370 transitions. [2022-12-13 15:52:23,902 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 15:52:23,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 9370 transitions. [2022-12-13 15:52:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:23,904 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:23,905 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 15:52:23,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:52:23,905 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash 920811593, now seen corresponding path program 1 times [2022-12-13 15:52:23,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:23,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797822525] [2022-12-13 15:52:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:24,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:24,136 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 15:52:24,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:24,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797822525] [2022-12-13 15:52:24,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797822525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:24,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:24,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:52:24,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136440280] [2022-12-13 15:52:24,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:24,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:24,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:24,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:24,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:24,138 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 15:52:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:28,712 INFO L93 Difference]: Finished difference Result 14357 states and 23546 transitions. [2022-12-13 15:52:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:52:28,712 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 15:52:28,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:28,736 INFO L225 Difference]: With dead ends: 14357 [2022-12-13 15:52:28,737 INFO L226 Difference]: Without dead ends: 10950 [2022-12-13 15:52:28,744 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 15:52:28,744 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5671 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3798 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:28,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5691 Valid, 22371 Invalid, 3865 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3798 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 15:52:28,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-12-13 15:52:29,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 8558. [2022-12-13 15:52:29,386 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 15:52:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 14134 transitions. [2022-12-13 15:52:29,400 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 14134 transitions. Word has length 189 [2022-12-13 15:52:29,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:29,400 INFO L495 AbstractCegarLoop]: Abstraction has 8558 states and 14134 transitions. [2022-12-13 15:52:29,400 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 15:52:29,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 14134 transitions. [2022-12-13 15:52:29,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:29,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:29,403 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 15:52:29,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:52:29,403 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:29,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:29,404 INFO L85 PathProgramCache]: Analyzing trace with hash 134813703, now seen corresponding path program 1 times [2022-12-13 15:52:29,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:29,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547625667] [2022-12-13 15:52:29,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:29,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:29,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:29,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:29,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:29,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:29,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:29,604 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 15:52:29,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:29,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547625667] [2022-12-13 15:52:29,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547625667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:29,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:29,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:52:29,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443382823] [2022-12-13 15:52:29,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:29,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:29,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:29,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:29,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:29,606 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 15:52:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:34,940 INFO L93 Difference]: Finished difference Result 25460 states and 41340 transitions. [2022-12-13 15:52:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:52:34,940 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 15:52:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:34,982 INFO L225 Difference]: With dead ends: 25460 [2022-12-13 15:52:34,983 INFO L226 Difference]: Without dead ends: 19044 [2022-12-13 15:52:34,996 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 15:52:34,996 INFO L413 NwaCegarLoop]: 4332 mSDtfsCounter, 5782 mSDsluCounter, 17145 mSDsCounter, 0 mSdLazyCounter, 3375 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:34,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5802 Valid, 21477 Invalid, 3478 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3375 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 15:52:35,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2022-12-13 15:52:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 14591. [2022-12-13 15:52:36,447 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 15:52:36,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23738 transitions. [2022-12-13 15:52:36,473 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23738 transitions. Word has length 189 [2022-12-13 15:52:36,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:36,473 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23738 transitions. [2022-12-13 15:52:36,473 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 15:52:36,473 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23738 transitions. [2022-12-13 15:52:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:36,478 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:36,478 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 15:52:36,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:52:36,478 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:36,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:36,479 INFO L85 PathProgramCache]: Analyzing trace with hash 802195593, now seen corresponding path program 1 times [2022-12-13 15:52:36,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:36,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671473191] [2022-12-13 15:52:36,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:36,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:36,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:36,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:36,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:36,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:36,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:36,664 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 15:52:36,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:36,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671473191] [2022-12-13 15:52:36,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671473191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:36,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:36,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:52:36,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882528812] [2022-12-13 15:52:36,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:36,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:36,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:36,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:36,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:36,667 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 15:52:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:40,996 INFO L93 Difference]: Finished difference Result 31774 states and 51709 transitions. [2022-12-13 15:52:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:52:40,996 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 15:52:40,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:41,033 INFO L225 Difference]: With dead ends: 31774 [2022-12-13 15:52:41,033 INFO L226 Difference]: Without dead ends: 19325 [2022-12-13 15:52:41,055 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 15:52:41,056 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 5180 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5201 SdHoareTripleChecker+Valid, 21099 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:41,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5201 Valid, 21099 Invalid, 2014 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 15:52:41,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2022-12-13 15:52:42,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 14591. [2022-12-13 15:52:42,472 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 15:52:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23705 transitions. [2022-12-13 15:52:42,498 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23705 transitions. Word has length 189 [2022-12-13 15:52:42,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:42,498 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23705 transitions. [2022-12-13 15:52:42,498 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 15:52:42,498 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23705 transitions. [2022-12-13 15:52:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:42,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:42,503 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 15:52:42,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:52:42,504 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1393033273, now seen corresponding path program 1 times [2022-12-13 15:52:42,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:42,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236038447] [2022-12-13 15:52:42,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:42,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:42,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:42,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:42,680 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 15:52:42,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:42,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236038447] [2022-12-13 15:52:42,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236038447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:42,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:42,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:52:42,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947500145] [2022-12-13 15:52:42,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:42,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:42,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:42,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:42,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:42,683 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 15:52:50,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:50,820 INFO L93 Difference]: Finished difference Result 47633 states and 76890 transitions. [2022-12-13 15:52:50,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:52:50,821 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 15:52:50,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:50,896 INFO L225 Difference]: With dead ends: 47633 [2022-12-13 15:52:50,896 INFO L226 Difference]: Without dead ends: 35184 [2022-12-13 15:52:50,921 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 15:52:50,921 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5662 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:50,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5682 Valid, 22371 Invalid, 3814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3747 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 15:52:50,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35184 states. [2022-12-13 15:52:53,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35184 to 26721. [2022-12-13 15:52:53,979 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 15:52:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26721 states to 26721 states and 43123 transitions. [2022-12-13 15:52:54,030 INFO L78 Accepts]: Start accepts. Automaton has 26721 states and 43123 transitions. Word has length 189 [2022-12-13 15:52:54,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:54,031 INFO L495 AbstractCegarLoop]: Abstraction has 26721 states and 43123 transitions. [2022-12-13 15:52:54,031 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 15:52:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand 26721 states and 43123 transitions. [2022-12-13 15:52:54,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:52:54,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:54,038 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 15:52:54,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:52:54,038 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:54,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1048205111, now seen corresponding path program 1 times [2022-12-13 15:52:54,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:54,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121731922] [2022-12-13 15:52:54,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:54,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:54,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:52:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:52:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:54,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:52:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:52:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:54,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:52:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:54,221 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 15:52:54,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:54,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121731922] [2022-12-13 15:52:54,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121731922] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:54,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:54,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:52:54,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265076034] [2022-12-13 15:52:54,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:54,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:52:54,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:54,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:52:54,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:54,222 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 15:53:07,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:53:07,770 INFO L93 Difference]: Finished difference Result 92049 states and 148866 transitions. [2022-12-13 15:53:07,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:53:07,771 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 15:53:07,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:53:07,979 INFO L225 Difference]: With dead ends: 92049 [2022-12-13 15:53:07,979 INFO L226 Difference]: Without dead ends: 67470 [2022-12-13 15:53:08,025 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 15:53:08,026 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5667 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:53:08,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5687 Valid, 22371 Invalid, 3796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 15:53:08,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67470 states. [2022-12-13 15:53:14,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67470 to 51042. [2022-12-13 15:53:14,279 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 15:53:14,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82535 transitions. [2022-12-13 15:53:14,401 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82535 transitions. Word has length 189 [2022-12-13 15:53:14,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:53:14,401 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82535 transitions. [2022-12-13 15:53:14,401 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 15:53:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82535 transitions. [2022-12-13 15:53:14,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:53:14,415 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:53:14,415 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 15:53:14,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:53:14,416 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:53:14,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:14,416 INFO L85 PathProgramCache]: Analyzing trace with hash -67250297, now seen corresponding path program 1 times [2022-12-13 15:53:14,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:14,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735587442] [2022-12-13 15:53:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:14,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:14,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:53:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:53:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:53:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:14,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:53:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:14,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:53:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:14,583 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 15:53:14,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:14,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735587442] [2022-12-13 15:53:14,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735587442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:53:14,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:53:14,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:53:14,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141341622] [2022-12-13 15:53:14,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:53:14,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:53:14,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:14,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:53:14,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:53:14,585 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 15:53:27,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:53:27,309 INFO L93 Difference]: Finished difference Result 117340 states and 192222 transitions. [2022-12-13 15:53:27,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:53:27,310 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 15:53:27,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:53:27,493 INFO L225 Difference]: With dead ends: 117340 [2022-12-13 15:53:27,493 INFO L226 Difference]: Without dead ends: 68440 [2022-12-13 15:53:27,585 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 15:53:27,586 INFO L413 NwaCegarLoop]: 4275 mSDtfsCounter, 5184 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:53:27,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 21099 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 15:53:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68440 states. [2022-12-13 15:53:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68440 to 51042. [2022-12-13 15:53:34,007 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 15:53:34,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82406 transitions. [2022-12-13 15:53:34,127 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82406 transitions. Word has length 189 [2022-12-13 15:53:34,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:53:34,127 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82406 transitions. [2022-12-13 15:53:34,127 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 15:53:34,127 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82406 transitions. [2022-12-13 15:53:34,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:53:34,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:53:34,142 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 15:53:34,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 15:53:34,142 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:53:34,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:34,142 INFO L85 PathProgramCache]: Analyzing trace with hash -678519355, now seen corresponding path program 1 times [2022-12-13 15:53:34,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:34,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268041582] [2022-12-13 15:53:34,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:34,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:34,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:53:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:53:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:34,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:53:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:53:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:53:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:34,322 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 15:53:34,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:34,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268041582] [2022-12-13 15:53:34,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268041582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:53:34,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:53:34,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:53:34,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655727286] [2022-12-13 15:53:34,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:53:34,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:53:34,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:34,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:53:34,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:53:34,324 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 15:54:00,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:54:00,333 INFO L93 Difference]: Finished difference Result 180620 states and 293500 transitions. [2022-12-13 15:54:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:54:00,334 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 15:54:00,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:54:00,708 INFO L225 Difference]: With dead ends: 180620 [2022-12-13 15:54:00,709 INFO L226 Difference]: Without dead ends: 131720 [2022-12-13 15:54:00,825 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 15:54:00,826 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 15:54:00,826 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 15:54:00,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131720 states. [2022-12-13 15:54:14,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131720 to 100069. [2022-12-13 15:54:14,303 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 15:54:14,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100069 states to 100069 states and 163138 transitions. [2022-12-13 15:54:14,665 INFO L78 Accepts]: Start accepts. Automaton has 100069 states and 163138 transitions. Word has length 189 [2022-12-13 15:54:14,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:54:14,665 INFO L495 AbstractCegarLoop]: Abstraction has 100069 states and 163138 transitions. [2022-12-13 15:54:14,665 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 15:54:14,665 INFO L276 IsEmpty]: Start isEmpty. Operand 100069 states and 163138 transitions. [2022-12-13 15:54:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:54:14,693 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:54:14,693 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 15:54:14,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 15:54:14,694 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:54:14,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:54:14,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2083711033, now seen corresponding path program 1 times [2022-12-13 15:54:14,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:54:14,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683783192] [2022-12-13 15:54:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:54:14,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:54:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:54:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:54:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:54:14,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:54:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:54:14,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:54:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:54:14,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:54:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:54:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:54:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:54:14,856 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 15:54:14,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:54:14,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683783192] [2022-12-13 15:54:14,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683783192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:54:14,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:54:14,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:54:14,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345237974] [2022-12-13 15:54:14,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:54:14,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:54:14,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:54:14,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:54:14,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:54:14,858 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 15:55:05,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:55:05,639 INFO L93 Difference]: Finished difference Result 358285 states and 589974 transitions. [2022-12-13 15:55:05,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:55:05,640 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 15:55:05,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:55:06,481 INFO L225 Difference]: With dead ends: 358285 [2022-12-13 15:55:06,481 INFO L226 Difference]: Without dead ends: 260358 [2022-12-13 15:55:06,755 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 15:55:06,755 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 5654 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3664 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:55:06,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5674 Valid, 22371 Invalid, 3731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3664 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-13 15:55:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260358 states. [2022-12-13 15:55:35,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260358 to 198374. [2022-12-13 15:55:35,603 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 15:55:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198374 states to 198374 states and 329350 transitions. [2022-12-13 15:55:36,457 INFO L78 Accepts]: Start accepts. Automaton has 198374 states and 329350 transitions. Word has length 189 [2022-12-13 15:55:36,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:55:36,457 INFO L495 AbstractCegarLoop]: Abstraction has 198374 states and 329350 transitions. [2022-12-13 15:55:36,457 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 15:55:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 198374 states and 329350 transitions. [2022-12-13 15:55:36,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:55:36,512 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:55:36,513 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 15:55:36,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 15:55:36,513 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:55:36,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:55:36,513 INFO L85 PathProgramCache]: Analyzing trace with hash -189377147, now seen corresponding path program 1 times [2022-12-13 15:55:36,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:55:36,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220302659] [2022-12-13 15:55:36,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:55:36,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:55:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:55:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:55:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:55:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:55:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:55:36,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:55:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:55:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:55:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:55:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:55:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:55:36,683 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 15:55:36,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:55:36,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220302659] [2022-12-13 15:55:36,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220302659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:55:36,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:55:36,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:55:36,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662981190] [2022-12-13 15:55:36,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:55:36,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:55:36,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:55:36,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:55:36,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:55:36,684 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 15:58:03,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:58:03,921 INFO L93 Difference]: Finished difference Result 811404 states and 1350558 transitions. [2022-12-13 15:58:03,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 15:58:03,921 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 15:58:03,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:58:06,467 INFO L225 Difference]: With dead ends: 811404 [2022-12-13 15:58:06,467 INFO L226 Difference]: Without dead ends: 615172 [2022-12-13 15:58:07,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:58:07,563 INFO L413 NwaCegarLoop]: 4332 mSDtfsCounter, 6276 mSDsluCounter, 17141 mSDsCounter, 0 mSdLazyCounter, 3284 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:58:07,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6310 Valid, 21473 Invalid, 3390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [106 Valid, 3284 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-13 15:58:07,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615172 states. [2022-12-13 15:59:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615172 to 393959. [2022-12-13 15:59:11,254 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 15:59:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393959 states to 393959 states and 673614 transitions. [2022-12-13 15:59:13,220 INFO L78 Accepts]: Start accepts. Automaton has 393959 states and 673614 transitions. Word has length 189 [2022-12-13 15:59:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:59:13,220 INFO L495 AbstractCegarLoop]: Abstraction has 393959 states and 673614 transitions. [2022-12-13 15:59:13,220 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 15:59:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 393959 states and 673614 transitions. [2022-12-13 15:59:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-12-13 15:59:13,332 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:59:13,332 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 15:59:13,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 15:59:13,332 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:59:13,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:59:13,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1257203719, now seen corresponding path program 1 times [2022-12-13 15:59:13,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:59:13,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215444586] [2022-12-13 15:59:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:59:13,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:59:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:59:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 15:59:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:59:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 15:59:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:59:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 15:59:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:59:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:59:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:59:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 15:59:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:59:13,495 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 15:59:13,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:59:13,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215444586] [2022-12-13 15:59:13,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215444586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:59:13,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:59:13,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:59:13,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982993132] [2022-12-13 15:59:13,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:59:13,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:59:13,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:59:13,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:59:13,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:59:13,496 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)