./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN --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 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 --- 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-6b4ec56 [2022-11-20 12:33:26,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:33:26,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:33:26,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:33:26,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:33:26,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:33:26,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:33:26,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:33:26,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:33:26,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:33:26,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:33:26,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:33:26,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:33:26,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:33:26,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:33:26,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:33:26,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:33:26,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:33:26,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:33:26,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:33:26,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:33:26,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:33:26,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:33:26,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:33:26,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:33:26,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:33:26,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:33:26,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:33:26,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:33:26,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:33:26,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:33:26,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:33:26,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:33:26,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:33:26,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:33:26,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:33:26,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:33:26,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:33:26,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:33:26,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:33:26,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:33:26,958 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:33:27,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:33:27,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:33:27,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:33:27,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:33:27,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:33:27,007 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:33:27,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:33:27,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:33:27,009 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:33:27,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:33:27,010 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:33:27,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:33:27,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:33:27,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:33:27,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:33:27,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:33:27,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:33:27,012 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:33:27,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:33:27,012 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:33:27,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:33:27,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:33:27,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:33:27,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:33:27,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:27,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:33:27,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:33:27,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:33:27,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:33:27,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:33:27,016 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:33:27,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:33:27,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:33:27,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 [2022-11-20 12:33:27,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:33:27,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:33:27,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:33:27,356 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:33:27,357 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:33:27,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/systemc/transmitter.16.cil.c [2022-11-20 12:33:30,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:33:30,760 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:33:30,760 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/sv-benchmarks/c/systemc/transmitter.16.cil.c [2022-11-20 12:33:30,787 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/data/af4b195f9/723025fb3b0040d39758c371acfe8894/FLAG8f3f7bb83 [2022-11-20 12:33:30,808 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/data/af4b195f9/723025fb3b0040d39758c371acfe8894 [2022-11-20 12:33:30,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:33:30,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:33:30,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:30,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:33:30,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:33:30,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:30" (1/1) ... [2022-11-20 12:33:30,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37eb11ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:30, skipping insertion in model container [2022-11-20 12:33:30,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:33:30" (1/1) ... [2022-11-20 12:33:30,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:33:30,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:33:31,044 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_a2b58ba5-3803-4928-a3bb-fa144d1da632/sv-benchmarks/c/systemc/transmitter.16.cil.c[706,719] [2022-11-20 12:33:31,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:31,236 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:33:31,247 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_a2b58ba5-3803-4928-a3bb-fa144d1da632/sv-benchmarks/c/systemc/transmitter.16.cil.c[706,719] [2022-11-20 12:33:31,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:33:31,349 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:33:31,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31 WrapperNode [2022-11-20 12:33:31,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:33:31,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:31,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:33:31,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:33:31,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,432 INFO L138 Inliner]: procedures = 56, calls = 71, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 945 [2022-11-20 12:33:31,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:33:31,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:33:31,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:33:31,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:33:31,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:33:31,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:33:31,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:33:31,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:33:31,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (1/1) ... [2022-11-20 12:33:31,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:33:31,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:33:31,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:33:31,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2b58ba5-3803-4928-a3bb-fa144d1da632/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:33:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:33:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-20 12:33:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-20 12:33:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-20 12:33:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-20 12:33:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-20 12:33:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-20 12:33:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-20 12:33:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-20 12:33:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-20 12:33:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-20 12:33:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-20 12:33:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-20 12:33:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:33:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:33:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:33:31,773 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:33:31,775 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:33:32,807 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:33:32,818 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:33:32,818 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-20 12:33:32,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:32 BoogieIcfgContainer [2022-11-20 12:33:32,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:33:32,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:33:32,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:33:32,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:33:32,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:33:30" (1/3) ... [2022-11-20 12:33:32,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f2f5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:32, skipping insertion in model container [2022-11-20 12:33:32,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:33:31" (2/3) ... [2022-11-20 12:33:32,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f2f5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:33:32, skipping insertion in model container [2022-11-20 12:33:32,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:33:32" (3/3) ... [2022-11-20 12:33:32,830 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2022-11-20 12:33:32,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:33:32,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:33:32,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:33:32,924 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;@177e62a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:33:32,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:33:32,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 390 states have (on average 1.6743589743589744) internal successors, (653), 392 states have internal predecessors, (653), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-20 12:33:32,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:33:32,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:32,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:32,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:33:32,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1676637755, now seen corresponding path program 1 times [2022-11-20 12:33:32,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:32,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452223952] [2022-11-20 12:33:32,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:32,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:33:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:33,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:33:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:33,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:33:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:33,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:33:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:33,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:33:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:33,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:33,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452223952] [2022-11-20 12:33:33,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452223952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:33,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:33,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:33:33,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159695118] [2022-11-20 12:33:33,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:33,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:33:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:33,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:33:33,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:33:33,813 INFO L87 Difference]: Start difference. First operand has 424 states, 390 states have (on average 1.6743589743589744) internal successors, (653), 392 states have internal predecessors, (653), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 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) [2022-11-20 12:33:36,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:36,981 INFO L93 Difference]: Finished difference Result 1001 states and 1674 transitions. [2022-11-20 12:33:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:33:36,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 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 195 [2022-11-20 12:33:36,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:36,999 INFO L225 Difference]: With dead ends: 1001 [2022-11-20 12:33:36,999 INFO L226 Difference]: Without dead ends: 581 [2022-11-20 12:33:37,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:33:37,008 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1172 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:33:37,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 822 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-20 12:33:37,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-11-20 12:33:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 419. [2022-11-20 12:33:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.5803108808290156) internal successors, (610), 387 states have internal predecessors, (610), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-20 12:33:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 662 transitions. [2022-11-20 12:33:37,149 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 662 transitions. Word has length 195 [2022-11-20 12:33:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:37,149 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 662 transitions. [2022-11-20 12:33:37,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 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) [2022-11-20 12:33:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 662 transitions. [2022-11-20 12:33:37,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:33:37,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:37,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:37,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:33:37,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:33:37,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:37,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1924605949, now seen corresponding path program 1 times [2022-11-20 12:33:37,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:37,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45987438] [2022-11-20 12:33:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:37,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:37,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:33:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:33:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:37,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:33:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:33:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:37,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:33:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:37,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:37,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45987438] [2022-11-20 12:33:37,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45987438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:37,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:37,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:33:37,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961895849] [2022-11-20 12:33:37,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:37,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:33:37,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:37,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:33:37,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:33:37,439 INFO L87 Difference]: Start difference. First operand 419 states and 662 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 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) [2022-11-20 12:33:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:40,168 INFO L93 Difference]: Finished difference Result 984 states and 1574 transitions. [2022-11-20 12:33:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:33:40,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 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 195 [2022-11-20 12:33:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:40,183 INFO L225 Difference]: With dead ends: 984 [2022-11-20 12:33:40,183 INFO L226 Difference]: Without dead ends: 581 [2022-11-20 12:33:40,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:33:40,192 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1159 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:33:40,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 808 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-20 12:33:40,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-11-20 12:33:40,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 419. [2022-11-20 12:33:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.577720207253886) internal successors, (609), 387 states have internal predecessors, (609), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-20 12:33:40,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 661 transitions. [2022-11-20 12:33:40,312 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 661 transitions. Word has length 195 [2022-11-20 12:33:40,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:40,313 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 661 transitions. [2022-11-20 12:33:40,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 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) [2022-11-20 12:33:40,313 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 661 transitions. [2022-11-20 12:33:40,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:33:40,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:40,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:40,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:33:40,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:33:40,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:40,319 INFO L85 PathProgramCache]: Analyzing trace with hash -404374593, now seen corresponding path program 1 times [2022-11-20 12:33:40,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:40,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254394937] [2022-11-20 12:33:40,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:40,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:33:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:33:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:40,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:33:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:33:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:33:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:40,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:40,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:40,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254394937] [2022-11-20 12:33:40,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254394937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:40,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:40,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:33:40,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803543663] [2022-11-20 12:33:40,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:40,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:33:40,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:40,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:33:40,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:33:40,733 INFO L87 Difference]: Start difference. First operand 419 states and 661 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:33:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:44,078 INFO L93 Difference]: Finished difference Result 1007 states and 1621 transitions. [2022-11-20 12:33:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:33:44,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-11-20 12:33:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:44,083 INFO L225 Difference]: With dead ends: 1007 [2022-11-20 12:33:44,083 INFO L226 Difference]: Without dead ends: 610 [2022-11-20 12:33:44,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:33:44,087 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1266 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:33:44,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1368 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 12:33:44,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-11-20 12:33:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 419. [2022-11-20 12:33:44,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.5751295336787565) internal successors, (608), 387 states have internal predecessors, (608), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-20 12:33:44,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 660 transitions. [2022-11-20 12:33:44,146 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 660 transitions. Word has length 195 [2022-11-20 12:33:44,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:44,147 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 660 transitions. [2022-11-20 12:33:44,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:33:44,148 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 660 transitions. [2022-11-20 12:33:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:33:44,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:44,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:44,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:33:44,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:33:44,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:44,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1907472899, now seen corresponding path program 1 times [2022-11-20 12:33:44,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:44,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232385841] [2022-11-20 12:33:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:44,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:44,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:33:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:33:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:44,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:33:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:33:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:44,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:33:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:44,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:44,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232385841] [2022-11-20 12:33:44,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232385841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:44,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:44,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:33:44,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721716460] [2022-11-20 12:33:44,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:44,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:33:44,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:44,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:33:44,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:33:44,553 INFO L87 Difference]: Start difference. First operand 419 states and 660 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:33:51,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:51,606 INFO L93 Difference]: Finished difference Result 1998 states and 3199 transitions. [2022-11-20 12:33:51,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:33:51,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-11-20 12:33:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:51,617 INFO L225 Difference]: With dead ends: 1998 [2022-11-20 12:33:51,618 INFO L226 Difference]: Without dead ends: 1601 [2022-11-20 12:33:51,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:33:51,621 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 2675 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4136 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2709 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 4213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:33:51,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2709 Valid, 2699 Invalid, 4213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 4136 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-20 12:33:51,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-11-20 12:33:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 841. [2022-11-20 12:33:51,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 777 states have (on average 1.5868725868725868) internal successors, (1233), 780 states have internal predecessors, (1233), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (56), 50 states have call predecessors, (56), 49 states have call successors, (56) [2022-11-20 12:33:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1338 transitions. [2022-11-20 12:33:51,854 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1338 transitions. Word has length 195 [2022-11-20 12:33:51,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:51,854 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1338 transitions. [2022-11-20 12:33:51,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:33:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1338 transitions. [2022-11-20 12:33:51,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:33:51,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:51,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:51,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:33:51,860 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:33:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:51,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1817412609, now seen corresponding path program 1 times [2022-11-20 12:33:51,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:51,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905337621] [2022-11-20 12:33:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:51,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:33:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:52,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:33:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:52,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:33:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:33:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:33:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:33:52,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:33:52,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905337621] [2022-11-20 12:33:52,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905337621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:33:52,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:33:52,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:33:52,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640041863] [2022-11-20 12:33:52,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:33:52,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:33:52,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:33:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:33:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:33:52,230 INFO L87 Difference]: Start difference. First operand 841 states and 1338 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:33:59,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:33:59,405 INFO L93 Difference]: Finished difference Result 3894 states and 6207 transitions. [2022-11-20 12:33:59,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:33:59,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-11-20 12:33:59,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:33:59,428 INFO L225 Difference]: With dead ends: 3894 [2022-11-20 12:33:59,429 INFO L226 Difference]: Without dead ends: 3077 [2022-11-20 12:33:59,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:33:59,443 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 2733 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 3879 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 3962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:33:59,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2767 Valid, 2591 Invalid, 3962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3879 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 12:33:59,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-11-20 12:33:59,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1620. [2022-11-20 12:33:59,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1500 states have (on average 1.5786666666666667) internal successors, (2368), 1505 states have internal predecessors, (2368), 91 states have call successors, (91), 24 states have call predecessors, (91), 28 states have return successors, (108), 94 states have call predecessors, (108), 91 states have call successors, (108) [2022-11-20 12:33:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2567 transitions. [2022-11-20 12:33:59,773 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2567 transitions. Word has length 195 [2022-11-20 12:33:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:33:59,773 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2567 transitions. [2022-11-20 12:33:59,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:33:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2567 transitions. [2022-11-20 12:33:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:33:59,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:33:59,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:33:59,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:33:59,778 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:33:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:33:59,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1787723197, now seen corresponding path program 1 times [2022-11-20 12:33:59,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:33:59,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141076997] [2022-11-20 12:33:59,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:33:59,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:33:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:59,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:33:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:33:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:33:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:34:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:00,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:34:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:00,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:34:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:34:00,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:00,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141076997] [2022-11-20 12:34:00,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141076997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:00,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:00,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:34:00,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562743663] [2022-11-20 12:34:00,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:00,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:34:00,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:00,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:34:00,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:34:00,148 INFO L87 Difference]: Start difference. First operand 1620 states and 2567 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:34:07,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:34:07,982 INFO L93 Difference]: Finished difference Result 7623 states and 12108 transitions. [2022-11-20 12:34:07,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:34:07,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-11-20 12:34:07,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:34:08,011 INFO L225 Difference]: With dead ends: 7623 [2022-11-20 12:34:08,012 INFO L226 Difference]: Without dead ends: 6027 [2022-11-20 12:34:08,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:34:08,020 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2677 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4110 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:34:08,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2696 Invalid, 4189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4110 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-20 12:34:08,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2022-11-20 12:34:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3181. [2022-11-20 12:34:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2949 states have (on average 1.5740929128518142) internal successors, (4642), 2958 states have internal predecessors, (4642), 175 states have call successors, (175), 48 states have call predecessors, (175), 56 states have return successors, (218), 182 states have call predecessors, (218), 175 states have call successors, (218) [2022-11-20 12:34:08,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 5035 transitions. [2022-11-20 12:34:08,740 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 5035 transitions. Word has length 195 [2022-11-20 12:34:08,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:34:08,740 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 5035 transitions. [2022-11-20 12:34:08,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:34:08,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 5035 transitions. [2022-11-20 12:34:08,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:34:08,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:34:08,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:34:08,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:34:08,746 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:34:08,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:08,746 INFO L85 PathProgramCache]: Analyzing trace with hash 379997247, now seen corresponding path program 1 times [2022-11-20 12:34:08,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:08,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870277995] [2022-11-20 12:34:08,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:08,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:08,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:34:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:34:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:09,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:34:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:09,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:34:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:34:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:34:09,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:09,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870277995] [2022-11-20 12:34:09,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870277995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:09,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:09,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:34:09,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156637312] [2022-11-20 12:34:09,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:09,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:34:09,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:09,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:34:09,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:34:09,103 INFO L87 Difference]: Start difference. First operand 3181 states and 5035 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:34:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:34:18,234 INFO L93 Difference]: Finished difference Result 15080 states and 23926 transitions. [2022-11-20 12:34:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:34:18,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-11-20 12:34:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:34:18,298 INFO L225 Difference]: With dead ends: 15080 [2022-11-20 12:34:18,299 INFO L226 Difference]: Without dead ends: 11923 [2022-11-20 12:34:18,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:34:18,315 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2677 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4101 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:34:18,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2696 Invalid, 4180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4101 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 12:34:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11923 states. [2022-11-20 12:34:19,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11923 to 6310. [2022-11-20 12:34:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 5854 states have (on average 1.5715749914588315) internal successors, (9200), 5871 states have internal predecessors, (9200), 343 states have call successors, (343), 96 states have call predecessors, (343), 112 states have return successors, (456), 358 states have call predecessors, (456), 343 states have call successors, (456) [2022-11-20 12:34:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 9999 transitions. [2022-11-20 12:34:19,855 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 9999 transitions. Word has length 195 [2022-11-20 12:34:19,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:34:19,855 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 9999 transitions. [2022-11-20 12:34:19,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:34:19,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 9999 transitions. [2022-11-20 12:34:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:34:19,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:34:19,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:34:19,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:34:19,862 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:34:19,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash 888776061, now seen corresponding path program 1 times [2022-11-20 12:34:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:19,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934573125] [2022-11-20 12:34:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:19,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:20,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:34:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:34:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:20,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:34:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:34:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:34:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:34:20,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:20,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934573125] [2022-11-20 12:34:20,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934573125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:20,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:20,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:34:20,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87047584] [2022-11-20 12:34:20,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:20,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:34:20,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:20,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:34:20,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:34:20,238 INFO L87 Difference]: Start difference. First operand 6310 states and 9999 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:34:32,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:34:32,764 INFO L93 Difference]: Finished difference Result 29993 states and 47620 transitions. [2022-11-20 12:34:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:34:32,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-11-20 12:34:32,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:34:32,854 INFO L225 Difference]: With dead ends: 29993 [2022-11-20 12:34:32,855 INFO L226 Difference]: Without dead ends: 23707 [2022-11-20 12:34:32,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:34:32,879 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2677 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:34:32,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2696 Invalid, 4171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 12:34:32,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23707 states. [2022-11-20 12:34:35,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23707 to 12583. [2022-11-20 12:34:35,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12583 states, 11679 states have (on average 1.5701686788252418) internal successors, (18338), 11712 states have internal predecessors, (18338), 679 states have call successors, (679), 192 states have call predecessors, (679), 224 states have return successors, (986), 710 states have call predecessors, (986), 679 states have call successors, (986) [2022-11-20 12:34:35,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12583 states to 12583 states and 20003 transitions. [2022-11-20 12:34:35,609 INFO L78 Accepts]: Start accepts. Automaton has 12583 states and 20003 transitions. Word has length 195 [2022-11-20 12:34:35,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:34:35,609 INFO L495 AbstractCegarLoop]: Abstraction has 12583 states and 20003 transitions. [2022-11-20 12:34:35,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:34:35,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12583 states and 20003 transitions. [2022-11-20 12:34:35,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:34:35,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:34:35,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:34:35,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:34:35,617 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:34:35,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:34:35,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1034474369, now seen corresponding path program 1 times [2022-11-20 12:34:35,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:34:35,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063962825] [2022-11-20 12:34:35,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:34:35,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:34:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:34:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:34:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:35,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:34:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:35,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:34:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:35,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:34:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:34:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:34:35,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:34:35,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063962825] [2022-11-20 12:34:35,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063962825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:34:35,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:34:35,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:34:35,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141845620] [2022-11-20 12:34:35,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:34:35,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:34:35,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:34:35,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:34:35,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:34:35,947 INFO L87 Difference]: Start difference. First operand 12583 states and 20003 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:34:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:34:55,989 INFO L93 Difference]: Finished difference Result 59818 states and 95198 transitions. [2022-11-20 12:34:55,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:34:55,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-11-20 12:34:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:34:56,183 INFO L225 Difference]: With dead ends: 59818 [2022-11-20 12:34:56,183 INFO L226 Difference]: Without dead ends: 47259 [2022-11-20 12:34:56,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:34:56,241 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2683 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4078 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:34:56,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 2696 Invalid, 4157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4078 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 12:34:56,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47259 states. [2022-11-20 12:35:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47259 to 25160. [2022-11-20 12:35:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25160 states, 23360 states have (on average 1.5693493150684932) internal successors, (36660), 23425 states have internal predecessors, (36660), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2022-11-20 12:35:01,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40219 transitions. [2022-11-20 12:35:01,476 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40219 transitions. Word has length 195 [2022-11-20 12:35:01,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:35:01,476 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40219 transitions. [2022-11-20 12:35:01,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:35:01,478 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40219 transitions. [2022-11-20 12:35:01,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:35:01,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:35:01,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:35:01,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:35:01,493 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:35:01,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:35:01,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1535884605, now seen corresponding path program 1 times [2022-11-20 12:35:01,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:35:01,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032105080] [2022-11-20 12:35:01,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:01,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:35:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:35:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:01,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:35:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:01,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:35:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:01,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:35:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:35:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:01,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:35:01,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032105080] [2022-11-20 12:35:01,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032105080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:35:01,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:35:01,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:35:01,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341872506] [2022-11-20 12:35:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:35:01,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:35:01,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:35:01,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:35:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:35:01,976 INFO L87 Difference]: Start difference. First operand 25160 states and 40219 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:35:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:35:13,115 INFO L93 Difference]: Finished difference Result 59727 states and 96857 transitions. [2022-11-20 12:35:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:35:13,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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 195 [2022-11-20 12:35:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:35:13,268 INFO L225 Difference]: With dead ends: 59727 [2022-11-20 12:35:13,269 INFO L226 Difference]: Without dead ends: 34589 [2022-11-20 12:35:13,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:35:13,339 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1274 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:35:13,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1367 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-20 12:35:13,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34589 states. [2022-11-20 12:35:18,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34589 to 25160. [2022-11-20 12:35:18,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25160 states, 23360 states have (on average 1.566566780821918) internal successors, (36595), 23425 states have internal predecessors, (36595), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2022-11-20 12:35:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40154 transitions. [2022-11-20 12:35:18,667 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40154 transitions. Word has length 195 [2022-11-20 12:35:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:35:18,667 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40154 transitions. [2022-11-20 12:35:18,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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) [2022-11-20 12:35:18,668 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40154 transitions. [2022-11-20 12:35:18,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 12:35:18,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:35:18,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:35:18,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:35:18,682 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:35:18,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:35:18,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2106156411, now seen corresponding path program 1 times [2022-11-20 12:35:18,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:35:18,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219454127] [2022-11-20 12:35:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:35:18,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:35:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 12:35:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:35:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:18,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 12:35:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:18,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-20 12:35:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-20 12:35:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:35:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:35:18,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:35:18,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219454127] [2022-11-20 12:35:18,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219454127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:35:18,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:35:18,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:35:18,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43593442] [2022-11-20 12:35:18,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:35:18,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:35:18,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:35:18,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:35:18,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:35:18,974 INFO L87 Difference]: Start difference. First operand 25160 states and 40154 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 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)