./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 d6dd7af8c681da9a32811252853803422c95f4df19741eb4bc23f2d0511fe647 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:42:57,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:42:57,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:42:57,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:42:57,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:42:57,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:42:57,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:42:57,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:42:57,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:42:57,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:42:57,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:42:57,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:42:57,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:42:57,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:42:57,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:42:57,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:42:57,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:42:57,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:42:57,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:42:57,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:42:57,844 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:42:57,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:42:57,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:42:57,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:42:57,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:42:57,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:42:57,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:42:57,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:42:57,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:42:57,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:42:57,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:42:57,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:42:57,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:42:57,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:42:57,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:42:57,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:42:57,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:42:57,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:42:57,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:42:57,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:42:57,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:42:57,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:42:57,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:42:57,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:42:57,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:42:57,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:42:57,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:42:57,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:42:57,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:42:57,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:42:57,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:42:57,872 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:42:57,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:42:57,873 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:42:57,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:42:57,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:42:57,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:42:57,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:42:57,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:42:57,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:42:57,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:42:57,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:42:57,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:42:57,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:42:57,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:42:57,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:42:57,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:42:57,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:42:57,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:42:57,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:42:57,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:42:57,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:42:57,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:42:57,879 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:42:57,879 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:42:57,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:42:57,879 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6dd7af8c681da9a32811252853803422c95f4df19741eb4bc23f2d0511fe647 [2022-07-19 17:42:58,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:42:58,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:42:58,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:42:58,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:42:58,099 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:42:58,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-07-19 17:42:58,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c056bef/1dda2e9f7ba34eb5878d6ffbad695b69/FLAGca5f38524 [2022-07-19 17:42:58,547 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:42:58,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-07-19 17:42:58,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c056bef/1dda2e9f7ba34eb5878d6ffbad695b69/FLAGca5f38524 [2022-07-19 17:42:58,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c056bef/1dda2e9f7ba34eb5878d6ffbad695b69 [2022-07-19 17:42:58,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:42:58,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:42:58,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:42:58,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:42:58,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:42:58,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a58ee6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58, skipping insertion in model container [2022-07-19 17:42:58,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:42:58,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:42:58,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2022-07-19 17:42:58,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:42:58,809 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:42:58,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2022-07-19 17:42:58,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:42:58,850 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:42:58,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58 WrapperNode [2022-07-19 17:42:58,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:42:58,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:42:58,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:42:58,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:42:58,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,887 INFO L137 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 413 [2022-07-19 17:42:58,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:42:58,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:42:58,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:42:58,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:42:58,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:42:58,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:42:58,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:42:58,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:42:58,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (1/1) ... [2022-07-19 17:42:58,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:42:58,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:42:58,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:42:58,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:42:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:42:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2022-07-19 17:42:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2022-07-19 17:42:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-19 17:42:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-19 17:42:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2022-07-19 17:42:58,990 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2022-07-19 17:42:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2022-07-19 17:42:58,991 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2022-07-19 17:42:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2022-07-19 17:42:58,991 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2022-07-19 17:42:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:42:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:42:58,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:42:59,109 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:42:59,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:42:59,586 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:42:59,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:42:59,596 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:42:59,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:42:59 BoogieIcfgContainer [2022-07-19 17:42:59,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:42:59,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:42:59,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:42:59,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:42:59,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:42:58" (1/3) ... [2022-07-19 17:42:59,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d926e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:42:59, skipping insertion in model container [2022-07-19 17:42:59,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:42:58" (2/3) ... [2022-07-19 17:42:59,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d926e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:42:59, skipping insertion in model container [2022-07-19 17:42:59,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:42:59" (3/3) ... [2022-07-19 17:42:59,605 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2022-07-19 17:42:59,615 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:42:59,616 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:42:59,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:42:59,679 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@400993b5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@13aaf3ac [2022-07-19 17:42:59,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:42:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 145 states have (on average 1.606896551724138) internal successors, (233), 149 states have internal predecessors, (233), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-07-19 17:42:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-19 17:42:59,707 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:59,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:59,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:59,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:59,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1605485676, now seen corresponding path program 1 times [2022-07-19 17:42:59,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:59,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46479065] [2022-07-19 17:42:59,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:59,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:59,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:59,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:59,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46479065] [2022-07-19 17:42:59,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46479065] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:59,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:59,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:42:59,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015860328] [2022-07-19 17:42:59,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:59,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:42:59,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:59,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:42:59,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:42:59,932 INFO L87 Difference]: Start difference. First operand has 184 states, 145 states have (on average 1.606896551724138) internal successors, (233), 149 states have internal predecessors, (233), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:43:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:00,062 INFO L93 Difference]: Finished difference Result 373 states and 637 transitions. [2022-07-19 17:43:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:00,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-19 17:43:00,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:00,084 INFO L225 Difference]: With dead ends: 373 [2022-07-19 17:43:00,084 INFO L226 Difference]: Without dead ends: 188 [2022-07-19 17:43:00,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:00,094 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 18 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:00,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 826 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:00,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-07-19 17:43:00,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2022-07-19 17:43:00,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 147 states have (on average 1.530612244897959) internal successors, (225), 150 states have internal predecessors, (225), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-07-19 17:43:00,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 289 transitions. [2022-07-19 17:43:00,148 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 289 transitions. Word has length 15 [2022-07-19 17:43:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:00,149 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 289 transitions. [2022-07-19 17:43:00,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:43:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 289 transitions. [2022-07-19 17:43:00,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 17:43:00,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:00,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:00,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:43:00,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash -621436427, now seen corresponding path program 1 times [2022-07-19 17:43:00,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:00,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528879980] [2022-07-19 17:43:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:00,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:43:00,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:00,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528879980] [2022-07-19 17:43:00,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528879980] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:00,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:00,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:00,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823440800] [2022-07-19 17:43:00,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:00,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:00,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:00,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:00,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:00,183 INFO L87 Difference]: Start difference. First operand 186 states and 289 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:43:00,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:00,217 INFO L93 Difference]: Finished difference Result 385 states and 601 transitions. [2022-07-19 17:43:00,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:00,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-19 17:43:00,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:00,220 INFO L225 Difference]: With dead ends: 385 [2022-07-19 17:43:00,220 INFO L226 Difference]: Without dead ends: 202 [2022-07-19 17:43:00,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:00,222 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 25 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:00,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 835 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-07-19 17:43:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2022-07-19 17:43:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 158 states have (on average 1.5126582278481013) internal successors, (239), 161 states have internal predecessors, (239), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-07-19 17:43:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 305 transitions. [2022-07-19 17:43:00,237 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 305 transitions. Word has length 16 [2022-07-19 17:43:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:00,238 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 305 transitions. [2022-07-19 17:43:00,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:43:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 305 transitions. [2022-07-19 17:43:00,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-19 17:43:00,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:00,240 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] [2022-07-19 17:43:00,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:43:00,240 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:00,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:00,241 INFO L85 PathProgramCache]: Analyzing trace with hash -741910715, now seen corresponding path program 1 times [2022-07-19 17:43:00,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:00,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064956655] [2022-07-19 17:43:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:00,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:43:00,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:00,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064956655] [2022-07-19 17:43:00,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064956655] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:00,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:00,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:43:00,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277251419] [2022-07-19 17:43:00,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:00,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:43:00,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:00,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:43:00,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:43:00,284 INFO L87 Difference]: Start difference. First operand 199 states and 305 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:43:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:00,299 INFO L93 Difference]: Finished difference Result 417 states and 647 transitions. [2022-07-19 17:43:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:43:00,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-07-19 17:43:00,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:00,301 INFO L225 Difference]: With dead ends: 417 [2022-07-19 17:43:00,302 INFO L226 Difference]: Without dead ends: 228 [2022-07-19 17:43:00,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:43:00,304 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 22 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:00,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 564 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-07-19 17:43:00,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 201. [2022-07-19 17:43:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 160 states have (on average 1.50625) internal successors, (241), 163 states have internal predecessors, (241), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-07-19 17:43:00,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 307 transitions. [2022-07-19 17:43:00,318 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 307 transitions. Word has length 23 [2022-07-19 17:43:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:00,318 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 307 transitions. [2022-07-19 17:43:00,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:43:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 307 transitions. [2022-07-19 17:43:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-19 17:43:00,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:00,320 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] [2022-07-19 17:43:00,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:43:00,320 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1197019830, now seen corresponding path program 1 times [2022-07-19 17:43:00,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:00,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153050078] [2022-07-19 17:43:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:00,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:43:00,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:00,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153050078] [2022-07-19 17:43:00,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153050078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:00,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:00,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615687939] [2022-07-19 17:43:00,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:00,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:00,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:00,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:00,391 INFO L87 Difference]: Start difference. First operand 201 states and 307 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:43:00,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:00,420 INFO L93 Difference]: Finished difference Result 457 states and 714 transitions. [2022-07-19 17:43:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:00,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2022-07-19 17:43:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:00,424 INFO L225 Difference]: With dead ends: 457 [2022-07-19 17:43:00,424 INFO L226 Difference]: Without dead ends: 307 [2022-07-19 17:43:00,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:00,426 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 132 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:00,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 870 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:00,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-07-19 17:43:00,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 201. [2022-07-19 17:43:00,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 160 states have (on average 1.48125) internal successors, (237), 163 states have internal predecessors, (237), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-07-19 17:43:00,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 303 transitions. [2022-07-19 17:43:00,438 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 303 transitions. Word has length 31 [2022-07-19 17:43:00,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:00,439 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 303 transitions. [2022-07-19 17:43:00,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:43:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 303 transitions. [2022-07-19 17:43:00,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-19 17:43:00,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:00,440 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:00,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:43:00,441 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:00,441 INFO L85 PathProgramCache]: Analyzing trace with hash -422396736, now seen corresponding path program 1 times [2022-07-19 17:43:00,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:00,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232054326] [2022-07-19 17:43:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:00,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:43:00,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:00,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232054326] [2022-07-19 17:43:00,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232054326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:00,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:00,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:43:00,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069943619] [2022-07-19 17:43:00,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:00,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:43:00,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:00,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:43:00,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:00,488 INFO L87 Difference]: Start difference. First operand 201 states and 303 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:43:00,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:00,511 INFO L93 Difference]: Finished difference Result 392 states and 595 transitions. [2022-07-19 17:43:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:00,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-07-19 17:43:00,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:00,513 INFO L225 Difference]: With dead ends: 392 [2022-07-19 17:43:00,513 INFO L226 Difference]: Without dead ends: 203 [2022-07-19 17:43:00,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:00,514 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 0 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:00,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1100 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:00,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-07-19 17:43:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 201. [2022-07-19 17:43:00,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 160 states have (on average 1.475) internal successors, (236), 163 states have internal predecessors, (236), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-07-19 17:43:00,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 302 transitions. [2022-07-19 17:43:00,523 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 302 transitions. Word has length 32 [2022-07-19 17:43:00,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:00,524 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 302 transitions. [2022-07-19 17:43:00,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:43:00,524 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 302 transitions. [2022-07-19 17:43:00,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:43:00,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:00,525 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:00,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:43:00,525 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:00,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:00,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1664815819, now seen corresponding path program 1 times [2022-07-19 17:43:00,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:00,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984400332] [2022-07-19 17:43:00,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:00,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:43:00,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:00,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984400332] [2022-07-19 17:43:00,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984400332] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:00,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039120153] [2022-07-19 17:43:00,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:00,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:00,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:00,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:00,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:43:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:00,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:43:00,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:00,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:43:00,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:43:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:43:00,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039120153] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:43:00,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:43:00,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-07-19 17:43:00,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994268014] [2022-07-19 17:43:00,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:43:00,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:43:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:00,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:43:00,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:00,737 INFO L87 Difference]: Start difference. First operand 201 states and 302 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-19 17:43:00,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:00,769 INFO L93 Difference]: Finished difference Result 450 states and 691 transitions. [2022-07-19 17:43:00,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:00,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2022-07-19 17:43:00,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:00,785 INFO L225 Difference]: With dead ends: 450 [2022-07-19 17:43:00,785 INFO L226 Difference]: Without dead ends: 260 [2022-07-19 17:43:00,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:00,787 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 66 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:00,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1084 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:00,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-07-19 17:43:00,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 254. [2022-07-19 17:43:00,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 203 states have (on average 1.4532019704433496) internal successors, (295), 206 states have internal predecessors, (295), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-07-19 17:43:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 381 transitions. [2022-07-19 17:43:00,804 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 381 transitions. Word has length 35 [2022-07-19 17:43:00,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:00,804 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 381 transitions. [2022-07-19 17:43:00,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-19 17:43:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 381 transitions. [2022-07-19 17:43:00,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-19 17:43:00,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:00,810 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:00,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 17:43:01,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-19 17:43:01,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:01,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:01,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1225495307, now seen corresponding path program 2 times [2022-07-19 17:43:01,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:01,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698851402] [2022-07-19 17:43:01,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:01,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-19 17:43:01,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:01,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698851402] [2022-07-19 17:43:01,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698851402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:01,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:01,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:01,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709730336] [2022-07-19 17:43:01,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:01,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:01,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:01,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:01,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:01,120 INFO L87 Difference]: Start difference. First operand 254 states and 381 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:43:01,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:01,154 INFO L93 Difference]: Finished difference Result 518 states and 788 transitions. [2022-07-19 17:43:01,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:01,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-07-19 17:43:01,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:01,159 INFO L225 Difference]: With dead ends: 518 [2022-07-19 17:43:01,159 INFO L226 Difference]: Without dead ends: 293 [2022-07-19 17:43:01,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,163 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 24 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:01,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 827 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-07-19 17:43:01,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2022-07-19 17:43:01,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 235 states have (on average 1.4127659574468086) internal successors, (332), 238 states have internal predecessors, (332), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-07-19 17:43:01,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 424 transitions. [2022-07-19 17:43:01,187 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 424 transitions. Word has length 57 [2022-07-19 17:43:01,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:01,188 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 424 transitions. [2022-07-19 17:43:01,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:43:01,188 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 424 transitions. [2022-07-19 17:43:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-19 17:43:01,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:01,195 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:01,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:43:01,195 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:01,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1867707356, now seen corresponding path program 1 times [2022-07-19 17:43:01,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:01,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133257701] [2022-07-19 17:43:01,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:01,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,276 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-19 17:43:01,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:01,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133257701] [2022-07-19 17:43:01,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133257701] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:01,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:01,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:01,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968933563] [2022-07-19 17:43:01,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:01,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:01,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:01,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:01,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:01,278 INFO L87 Difference]: Start difference. First operand 290 states and 424 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:43:01,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:01,314 INFO L93 Difference]: Finished difference Result 555 states and 835 transitions. [2022-07-19 17:43:01,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:01,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-07-19 17:43:01,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:01,316 INFO L225 Difference]: With dead ends: 555 [2022-07-19 17:43:01,316 INFO L226 Difference]: Without dead ends: 299 [2022-07-19 17:43:01,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,319 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 19 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:01,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 813 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-07-19 17:43:01,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2022-07-19 17:43:01,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 241 states have (on average 1.4107883817427387) internal successors, (340), 244 states have internal predecessors, (340), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-07-19 17:43:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 432 transitions. [2022-07-19 17:43:01,341 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 432 transitions. Word has length 57 [2022-07-19 17:43:01,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:01,342 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 432 transitions. [2022-07-19 17:43:01,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:43:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 432 transitions. [2022-07-19 17:43:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-19 17:43:01,343 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:01,343 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:01,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:43:01,344 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:01,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:01,344 INFO L85 PathProgramCache]: Analyzing trace with hash -917641064, now seen corresponding path program 1 times [2022-07-19 17:43:01,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:01,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445385991] [2022-07-19 17:43:01,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:01,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-19 17:43:01,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:01,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445385991] [2022-07-19 17:43:01,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445385991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:01,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:01,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:43:01,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457553763] [2022-07-19 17:43:01,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:01,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:43:01,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:01,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:43:01,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,449 INFO L87 Difference]: Start difference. First operand 297 states and 432 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-19 17:43:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:01,471 INFO L93 Difference]: Finished difference Result 543 states and 803 transitions. [2022-07-19 17:43:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:01,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2022-07-19 17:43:01,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:01,474 INFO L225 Difference]: With dead ends: 543 [2022-07-19 17:43:01,474 INFO L226 Difference]: Without dead ends: 299 [2022-07-19 17:43:01,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,477 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 0 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:01,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1100 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:01,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-07-19 17:43:01,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 297. [2022-07-19 17:43:01,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 241 states have (on average 1.3983402489626555) internal successors, (337), 244 states have internal predecessors, (337), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-07-19 17:43:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 429 transitions. [2022-07-19 17:43:01,489 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 429 transitions. Word has length 75 [2022-07-19 17:43:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:01,489 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 429 transitions. [2022-07-19 17:43:01,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-19 17:43:01,490 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 429 transitions. [2022-07-19 17:43:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-19 17:43:01,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:01,491 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:01,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:43:01,491 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:01,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:01,495 INFO L85 PathProgramCache]: Analyzing trace with hash -276575053, now seen corresponding path program 1 times [2022-07-19 17:43:01,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:01,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724829534] [2022-07-19 17:43:01,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:01,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-19 17:43:01,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:01,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724829534] [2022-07-19 17:43:01,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724829534] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:01,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:01,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:01,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026748223] [2022-07-19 17:43:01,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:01,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:01,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:01,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:01,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:01,577 INFO L87 Difference]: Start difference. First operand 297 states and 429 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-19 17:43:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:01,610 INFO L93 Difference]: Finished difference Result 580 states and 859 transitions. [2022-07-19 17:43:01,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:01,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 104 [2022-07-19 17:43:01,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:01,613 INFO L225 Difference]: With dead ends: 580 [2022-07-19 17:43:01,614 INFO L226 Difference]: Without dead ends: 341 [2022-07-19 17:43:01,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,615 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 25 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:01,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 827 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:01,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-19 17:43:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 338. [2022-07-19 17:43:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 278 states have (on average 1.3633093525179856) internal successors, (379), 281 states have internal predecessors, (379), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-07-19 17:43:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 477 transitions. [2022-07-19 17:43:01,627 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 477 transitions. Word has length 104 [2022-07-19 17:43:01,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:01,628 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 477 transitions. [2022-07-19 17:43:01,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-19 17:43:01,629 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 477 transitions. [2022-07-19 17:43:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-19 17:43:01,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:01,633 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:01,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 17:43:01,633 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:01,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash -92526865, now seen corresponding path program 1 times [2022-07-19 17:43:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:01,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148263565] [2022-07-19 17:43:01,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:01,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-07-19 17:43:01,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:01,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148263565] [2022-07-19 17:43:01,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148263565] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:01,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:01,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:01,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294125686] [2022-07-19 17:43:01,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:01,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:01,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:01,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:01,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:01,695 INFO L87 Difference]: Start difference. First operand 338 states and 477 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-19 17:43:01,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:01,724 INFO L93 Difference]: Finished difference Result 606 states and 879 transitions. [2022-07-19 17:43:01,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:43:01,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 105 [2022-07-19 17:43:01,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:01,726 INFO L225 Difference]: With dead ends: 606 [2022-07-19 17:43:01,726 INFO L226 Difference]: Without dead ends: 332 [2022-07-19 17:43:01,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,727 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 15 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:01,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 786 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:01,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-07-19 17:43:01,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-07-19 17:43:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 273 states have (on average 1.3443223443223444) internal successors, (367), 276 states have internal predecessors, (367), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-07-19 17:43:01,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 463 transitions. [2022-07-19 17:43:01,737 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 463 transitions. Word has length 105 [2022-07-19 17:43:01,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:01,737 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 463 transitions. [2022-07-19 17:43:01,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-19 17:43:01,738 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 463 transitions. [2022-07-19 17:43:01,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-19 17:43:01,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:01,739 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:01,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:43:01,739 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:01,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:01,739 INFO L85 PathProgramCache]: Analyzing trace with hash -440553643, now seen corresponding path program 1 times [2022-07-19 17:43:01,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:01,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647415551] [2022-07-19 17:43:01,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:01,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-19 17:43:01,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:01,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647415551] [2022-07-19 17:43:01,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647415551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:01,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:01,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:43:01,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511516474] [2022-07-19 17:43:01,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:01,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:43:01,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:01,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:43:01,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,796 INFO L87 Difference]: Start difference. First operand 332 states and 463 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-19 17:43:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:01,813 INFO L93 Difference]: Finished difference Result 581 states and 828 transitions. [2022-07-19 17:43:01,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:01,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 124 [2022-07-19 17:43:01,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:01,815 INFO L225 Difference]: With dead ends: 581 [2022-07-19 17:43:01,815 INFO L226 Difference]: Without dead ends: 334 [2022-07-19 17:43:01,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,816 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 0 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:01,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1085 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-07-19 17:43:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 332. [2022-07-19 17:43:01,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 273 states have (on average 1.3333333333333333) internal successors, (364), 276 states have internal predecessors, (364), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-07-19 17:43:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 460 transitions. [2022-07-19 17:43:01,826 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 460 transitions. Word has length 124 [2022-07-19 17:43:01,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:01,826 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 460 transitions. [2022-07-19 17:43:01,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-19 17:43:01,826 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 460 transitions. [2022-07-19 17:43:01,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-19 17:43:01,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:01,828 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:01,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:43:01,828 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:01,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:01,828 INFO L85 PathProgramCache]: Analyzing trace with hash -37757066, now seen corresponding path program 1 times [2022-07-19 17:43:01,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:01,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112936115] [2022-07-19 17:43:01,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:01,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-19 17:43:01,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:01,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112936115] [2022-07-19 17:43:01,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112936115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:01,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:01,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:01,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614819567] [2022-07-19 17:43:01,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:01,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:01,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:01,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:01,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:01,890 INFO L87 Difference]: Start difference. First operand 332 states and 460 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-19 17:43:01,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:01,927 INFO L93 Difference]: Finished difference Result 544 states and 788 transitions. [2022-07-19 17:43:01,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:43:01,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 157 [2022-07-19 17:43:01,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:01,929 INFO L225 Difference]: With dead ends: 544 [2022-07-19 17:43:01,929 INFO L226 Difference]: Without dead ends: 330 [2022-07-19 17:43:01,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:01,931 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 13 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:01,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 754 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:01,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-19 17:43:01,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2022-07-19 17:43:01,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 272 states have (on average 1.3308823529411764) internal successors, (362), 275 states have internal predecessors, (362), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-07-19 17:43:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 456 transitions. [2022-07-19 17:43:01,940 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 456 transitions. Word has length 157 [2022-07-19 17:43:01,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:01,940 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 456 transitions. [2022-07-19 17:43:01,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-19 17:43:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 456 transitions. [2022-07-19 17:43:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-19 17:43:01,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:01,942 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:01,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 17:43:01,943 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:01,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:01,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1460013805, now seen corresponding path program 1 times [2022-07-19 17:43:01,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:01,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893584623] [2022-07-19 17:43:01,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:01,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:01,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,010 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-19 17:43:02,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:02,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893584623] [2022-07-19 17:43:02,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893584623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:02,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:02,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:02,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167630214] [2022-07-19 17:43:02,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:02,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:02,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:02,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:02,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:02,012 INFO L87 Difference]: Start difference. First operand 330 states and 456 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 17:43:02,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:02,044 INFO L93 Difference]: Finished difference Result 484 states and 684 transitions. [2022-07-19 17:43:02,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:02,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 172 [2022-07-19 17:43:02,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:02,047 INFO L225 Difference]: With dead ends: 484 [2022-07-19 17:43:02,047 INFO L226 Difference]: Without dead ends: 313 [2022-07-19 17:43:02,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:02,048 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 35 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:02,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 735 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-07-19 17:43:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2022-07-19 17:43:02,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 258 states have (on average 1.321705426356589) internal successors, (341), 261 states have internal predecessors, (341), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-07-19 17:43:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 429 transitions. [2022-07-19 17:43:02,057 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 429 transitions. Word has length 172 [2022-07-19 17:43:02,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:02,058 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 429 transitions. [2022-07-19 17:43:02,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 17:43:02,058 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 429 transitions. [2022-07-19 17:43:02,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-19 17:43:02,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:02,060 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:02,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 17:43:02,060 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:02,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:02,060 INFO L85 PathProgramCache]: Analyzing trace with hash 409048779, now seen corresponding path program 1 times [2022-07-19 17:43:02,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:02,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72043461] [2022-07-19 17:43:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:02,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,125 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-07-19 17:43:02,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:02,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72043461] [2022-07-19 17:43:02,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72043461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:02,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:02,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:02,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229824796] [2022-07-19 17:43:02,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:02,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:02,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:02,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:02,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:02,127 INFO L87 Difference]: Start difference. First operand 313 states and 429 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 17:43:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:02,172 INFO L93 Difference]: Finished difference Result 467 states and 657 transitions. [2022-07-19 17:43:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:02,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 174 [2022-07-19 17:43:02,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:02,174 INFO L225 Difference]: With dead ends: 467 [2022-07-19 17:43:02,174 INFO L226 Difference]: Without dead ends: 294 [2022-07-19 17:43:02,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:02,175 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 30 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:02,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 739 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:02,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-07-19 17:43:02,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2022-07-19 17:43:02,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 242 states have (on average 1.3140495867768596) internal successors, (318), 245 states have internal predecessors, (318), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-07-19 17:43:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 400 transitions. [2022-07-19 17:43:02,182 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 400 transitions. Word has length 174 [2022-07-19 17:43:02,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:02,183 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 400 transitions. [2022-07-19 17:43:02,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-19 17:43:02,183 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 400 transitions. [2022-07-19 17:43:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-19 17:43:02,184 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:02,184 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:02,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 17:43:02,185 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:02,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:02,185 INFO L85 PathProgramCache]: Analyzing trace with hash 222848508, now seen corresponding path program 1 times [2022-07-19 17:43:02,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:02,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805432970] [2022-07-19 17:43:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:02,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-19 17:43:02,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:02,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805432970] [2022-07-19 17:43:02,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805432970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:02,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:02,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:43:02,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366213815] [2022-07-19 17:43:02,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:02,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:43:02,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:02,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:43:02,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:02,253 INFO L87 Difference]: Start difference. First operand 294 states and 400 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-19 17:43:02,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:02,269 INFO L93 Difference]: Finished difference Result 447 states and 627 transitions. [2022-07-19 17:43:02,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:02,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 175 [2022-07-19 17:43:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:02,271 INFO L225 Difference]: With dead ends: 447 [2022-07-19 17:43:02,271 INFO L226 Difference]: Without dead ends: 294 [2022-07-19 17:43:02,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:02,272 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 0 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:02,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1064 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-07-19 17:43:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2022-07-19 17:43:02,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 242 states have (on average 1.2892561983471074) internal successors, (312), 245 states have internal predecessors, (312), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-07-19 17:43:02,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 394 transitions. [2022-07-19 17:43:02,280 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 394 transitions. Word has length 175 [2022-07-19 17:43:02,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:02,280 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 394 transitions. [2022-07-19 17:43:02,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-19 17:43:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 394 transitions. [2022-07-19 17:43:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-19 17:43:02,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:02,282 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:02,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 17:43:02,282 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:02,283 INFO L85 PathProgramCache]: Analyzing trace with hash 312728436, now seen corresponding path program 1 times [2022-07-19 17:43:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:02,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376832990] [2022-07-19 17:43:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:02,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-19 17:43:02,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376832990] [2022-07-19 17:43:02,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376832990] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:02,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571828190] [2022-07-19 17:43:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:02,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:02,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:02,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:02,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 17:43:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:43:02,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-19 17:43:02,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:43:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-19 17:43:02,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571828190] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:02,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-19 17:43:02,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 5 [2022-07-19 17:43:02,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945581114] [2022-07-19 17:43:02,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:02,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:02,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:02,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:02,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:02,607 INFO L87 Difference]: Start difference. First operand 294 states and 394 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-19 17:43:02,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:02,638 INFO L93 Difference]: Finished difference Result 468 states and 649 transitions. [2022-07-19 17:43:02,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:43:02,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 182 [2022-07-19 17:43:02,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:02,640 INFO L225 Difference]: With dead ends: 468 [2022-07-19 17:43:02,640 INFO L226 Difference]: Without dead ends: 273 [2022-07-19 17:43:02,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:02,642 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 35 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:02,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 505 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:02,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-07-19 17:43:02,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2022-07-19 17:43:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 224 states have (on average 1.28125) internal successors, (287), 227 states have internal predecessors, (287), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-07-19 17:43:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 363 transitions. [2022-07-19 17:43:02,651 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 363 transitions. Word has length 182 [2022-07-19 17:43:02,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:02,651 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 363 transitions. [2022-07-19 17:43:02,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-19 17:43:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 363 transitions. [2022-07-19 17:43:02,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-19 17:43:02,653 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:02,653 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:02,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-19 17:43:02,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-19 17:43:02,867 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:02,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1687421607, now seen corresponding path program 1 times [2022-07-19 17:43:02,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:02,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657257527] [2022-07-19 17:43:02,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:02,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:02,940 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-07-19 17:43:02,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:02,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657257527] [2022-07-19 17:43:02,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657257527] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:02,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:02,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:02,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36794883] [2022-07-19 17:43:02,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:02,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:02,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:02,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:02,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:02,942 INFO L87 Difference]: Start difference. First operand 273 states and 363 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-19 17:43:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:02,960 INFO L93 Difference]: Finished difference Result 425 states and 591 transitions. [2022-07-19 17:43:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:02,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 206 [2022-07-19 17:43:02,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:02,961 INFO L225 Difference]: With dead ends: 425 [2022-07-19 17:43:02,961 INFO L226 Difference]: Without dead ends: 279 [2022-07-19 17:43:02,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:02,962 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 6 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:02,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 779 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:02,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-07-19 17:43:02,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 277. [2022-07-19 17:43:02,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 227 states have (on average 1.277533039647577) internal successors, (290), 230 states have internal predecessors, (290), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-07-19 17:43:02,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 366 transitions. [2022-07-19 17:43:02,969 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 366 transitions. Word has length 206 [2022-07-19 17:43:02,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:02,969 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 366 transitions. [2022-07-19 17:43:02,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-19 17:43:02,969 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 366 transitions. [2022-07-19 17:43:02,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-19 17:43:02,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:02,971 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:02,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 17:43:02,971 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:02,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:02,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1286095815, now seen corresponding path program 1 times [2022-07-19 17:43:02,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:02,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941548207] [2022-07-19 17:43:02,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:02,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-07-19 17:43:03,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:03,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941548207] [2022-07-19 17:43:03,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941548207] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:03,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129416444] [2022-07-19 17:43:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:03,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:03,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:03,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:03,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 17:43:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:43:03,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-07-19 17:43:03,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:03,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129416444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:03,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:03,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-19 17:43:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60421025] [2022-07-19 17:43:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:03,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:03,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:03,208 INFO L87 Difference]: Start difference. First operand 277 states and 366 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-19 17:43:03,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:03,229 INFO L93 Difference]: Finished difference Result 434 states and 598 transitions. [2022-07-19 17:43:03,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:03,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 215 [2022-07-19 17:43:03,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:03,231 INFO L225 Difference]: With dead ends: 434 [2022-07-19 17:43:03,231 INFO L226 Difference]: Without dead ends: 284 [2022-07-19 17:43:03,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:43:03,232 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 7 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:03,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 784 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:03,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-07-19 17:43:03,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 282. [2022-07-19 17:43:03,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 231 states have (on average 1.2727272727272727) internal successors, (294), 234 states have internal predecessors, (294), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-07-19 17:43:03,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 370 transitions. [2022-07-19 17:43:03,240 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 370 transitions. Word has length 215 [2022-07-19 17:43:03,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:03,241 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 370 transitions. [2022-07-19 17:43:03,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-19 17:43:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 370 transitions. [2022-07-19 17:43:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-19 17:43:03,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:03,253 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:03,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:03,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:03,469 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:03,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:03,469 INFO L85 PathProgramCache]: Analyzing trace with hash -690820591, now seen corresponding path program 1 times [2022-07-19 17:43:03,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:03,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531537548] [2022-07-19 17:43:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:03,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:43:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-07-19 17:43:03,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:03,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531537548] [2022-07-19 17:43:03,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531537548] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:03,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585800480] [2022-07-19 17:43:03,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:03,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:03,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:03,552 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:03,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 17:43:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:43:03,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2022-07-19 17:43:03,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:03,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585800480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:03,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:03,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-19 17:43:03,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764598293] [2022-07-19 17:43:03,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:03,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:03,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:03,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:03,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:03,695 INFO L87 Difference]: Start difference. First operand 282 states and 370 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 17:43:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:03,715 INFO L93 Difference]: Finished difference Result 436 states and 596 transitions. [2022-07-19 17:43:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:43:03,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 225 [2022-07-19 17:43:03,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:03,717 INFO L225 Difference]: With dead ends: 436 [2022-07-19 17:43:03,717 INFO L226 Difference]: Without dead ends: 281 [2022-07-19 17:43:03,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:43:03,718 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 7 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:03,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 770 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-07-19 17:43:03,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2022-07-19 17:43:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 231 states have (on average 1.2597402597402598) internal successors, (291), 233 states have internal predecessors, (291), 37 states have call successors, (37), 12 states have call predecessors, (37), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-07-19 17:43:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 365 transitions. [2022-07-19 17:43:03,725 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 365 transitions. Word has length 225 [2022-07-19 17:43:03,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:03,725 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 365 transitions. [2022-07-19 17:43:03,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-19 17:43:03,726 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 365 transitions. [2022-07-19 17:43:03,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-19 17:43:03,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:03,727 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:03,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:03,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:03,945 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:03,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1815976528, now seen corresponding path program 1 times [2022-07-19 17:43:03,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:03,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939610013] [2022-07-19 17:43:03,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:03,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:43:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-19 17:43:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,041 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-07-19 17:43:04,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:04,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939610013] [2022-07-19 17:43:04,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939610013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:04,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:04,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:04,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161103032] [2022-07-19 17:43:04,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:04,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:04,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:04,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:04,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:04,045 INFO L87 Difference]: Start difference. First operand 281 states and 365 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-19 17:43:04,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:04,200 INFO L93 Difference]: Finished difference Result 478 states and 656 transitions. [2022-07-19 17:43:04,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:43:04,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 234 [2022-07-19 17:43:04,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:04,202 INFO L225 Difference]: With dead ends: 478 [2022-07-19 17:43:04,202 INFO L226 Difference]: Without dead ends: 324 [2022-07-19 17:43:04,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:04,203 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 185 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:04,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 634 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:43:04,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-07-19 17:43:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 280. [2022-07-19 17:43:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 231 states have (on average 1.2554112554112553) internal successors, (290), 232 states have internal predecessors, (290), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-07-19 17:43:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 362 transitions. [2022-07-19 17:43:04,213 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 362 transitions. Word has length 234 [2022-07-19 17:43:04,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:04,213 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 362 transitions. [2022-07-19 17:43:04,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-07-19 17:43:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 362 transitions. [2022-07-19 17:43:04,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-19 17:43:04,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:04,216 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:04,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 17:43:04,217 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:04,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash 869606888, now seen corresponding path program 1 times [2022-07-19 17:43:04,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:04,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298634559] [2022-07-19 17:43:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:04,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:43:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-19 17:43:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-07-19 17:43:04,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:04,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298634559] [2022-07-19 17:43:04,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298634559] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:04,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:04,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:43:04,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612509901] [2022-07-19 17:43:04,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:04,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:43:04,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:04,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:43:04,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:04,359 INFO L87 Difference]: Start difference. First operand 280 states and 362 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 17:43:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:04,750 INFO L93 Difference]: Finished difference Result 657 states and 878 transitions. [2022-07-19 17:43:04,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:43:04,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 237 [2022-07-19 17:43:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:04,754 INFO L225 Difference]: With dead ends: 657 [2022-07-19 17:43:04,754 INFO L226 Difference]: Without dead ends: 504 [2022-07-19 17:43:04,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:43:04,755 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 419 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:04,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 794 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 17:43:04,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-07-19 17:43:04,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 441. [2022-07-19 17:43:04,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 362 states have (on average 1.3011049723756907) internal successors, (471), 364 states have internal predecessors, (471), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-07-19 17:43:04,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 579 transitions. [2022-07-19 17:43:04,770 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 579 transitions. Word has length 237 [2022-07-19 17:43:04,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:04,771 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 579 transitions. [2022-07-19 17:43:04,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 17:43:04,771 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 579 transitions. [2022-07-19 17:43:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-19 17:43:04,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:04,773 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:04,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 17:43:04,773 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:04,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:04,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1758726155, now seen corresponding path program 1 times [2022-07-19 17:43:04,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:04,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031852276] [2022-07-19 17:43:04,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:04,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:43:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-19 17:43:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-19 17:43:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-19 17:43:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-19 17:43:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:04,861 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-07-19 17:43:04,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:04,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031852276] [2022-07-19 17:43:04,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031852276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:04,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:04,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:04,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412251876] [2022-07-19 17:43:04,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:04,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:04,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:04,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:04,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:04,863 INFO L87 Difference]: Start difference. First operand 441 states and 579 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:43:05,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:05,097 INFO L93 Difference]: Finished difference Result 932 states and 1277 transitions. [2022-07-19 17:43:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:05,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 264 [2022-07-19 17:43:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:05,101 INFO L225 Difference]: With dead ends: 932 [2022-07-19 17:43:05,101 INFO L226 Difference]: Without dead ends: 695 [2022-07-19 17:43:05,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:05,102 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 217 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:05,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 592 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:43:05,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-07-19 17:43:05,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 533. [2022-07-19 17:43:05,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 444 states have (on average 1.3108108108108107) internal successors, (582), 447 states have internal predecessors, (582), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-07-19 17:43:05,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 700 transitions. [2022-07-19 17:43:05,126 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 700 transitions. Word has length 264 [2022-07-19 17:43:05,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:05,127 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 700 transitions. [2022-07-19 17:43:05,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:43:05,127 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 700 transitions. [2022-07-19 17:43:05,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-07-19 17:43:05,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:05,129 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:05,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-19 17:43:05,130 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:05,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:05,130 INFO L85 PathProgramCache]: Analyzing trace with hash -378112666, now seen corresponding path program 1 times [2022-07-19 17:43:05,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:05,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290277151] [2022-07-19 17:43:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:43:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-19 17:43:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-19 17:43:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-19 17:43:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-19 17:43:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-07-19 17:43:05,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:05,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290277151] [2022-07-19 17:43:05,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290277151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:05,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:05,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:05,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708809548] [2022-07-19 17:43:05,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:05,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:05,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:05,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:05,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:05,254 INFO L87 Difference]: Start difference. First operand 533 states and 700 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:43:05,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:05,486 INFO L93 Difference]: Finished difference Result 1127 states and 1536 transitions. [2022-07-19 17:43:05,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:05,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 265 [2022-07-19 17:43:05,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:05,490 INFO L225 Difference]: With dead ends: 1127 [2022-07-19 17:43:05,490 INFO L226 Difference]: Without dead ends: 833 [2022-07-19 17:43:05,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:05,491 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 220 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:05,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 626 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:43:05,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2022-07-19 17:43:05,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 655. [2022-07-19 17:43:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 554 states have (on average 1.3212996389891696) internal successors, (732), 559 states have internal predecessors, (732), 65 states have call successors, (65), 35 states have call predecessors, (65), 35 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-19 17:43:05,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 862 transitions. [2022-07-19 17:43:05,517 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 862 transitions. Word has length 265 [2022-07-19 17:43:05,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:05,518 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 862 transitions. [2022-07-19 17:43:05,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:43:05,518 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 862 transitions. [2022-07-19 17:43:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-07-19 17:43:05,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:05,520 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:05,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-19 17:43:05,521 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:05,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:05,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1594763960, now seen corresponding path program 1 times [2022-07-19 17:43:05,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:05,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217852891] [2022-07-19 17:43:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:05,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-19 17:43:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-19 17:43:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2022-07-19 17:43:05,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217852891] [2022-07-19 17:43:05,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217852891] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:05,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891092605] [2022-07-19 17:43:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:05,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:05,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:05,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:05,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 17:43:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:05,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:43:05,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-19 17:43:05,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:05,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891092605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:05,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:05,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-07-19 17:43:05,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745938349] [2022-07-19 17:43:05,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:05,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:05,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:05,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:05,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:43:05,842 INFO L87 Difference]: Start difference. First operand 655 states and 862 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:43:05,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:05,917 INFO L93 Difference]: Finished difference Result 1045 states and 1410 transitions. [2022-07-19 17:43:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:05,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 266 [2022-07-19 17:43:05,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:05,920 INFO L225 Difference]: With dead ends: 1045 [2022-07-19 17:43:05,920 INFO L226 Difference]: Without dead ends: 655 [2022-07-19 17:43:05,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:43:05,921 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 51 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:05,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 687 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:05,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-07-19 17:43:05,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2022-07-19 17:43:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 554 states have (on average 1.3104693140794224) internal successors, (726), 559 states have internal predecessors, (726), 65 states have call successors, (65), 35 states have call predecessors, (65), 35 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-19 17:43:05,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 856 transitions. [2022-07-19 17:43:05,949 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 856 transitions. Word has length 266 [2022-07-19 17:43:05,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:05,949 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 856 transitions. [2022-07-19 17:43:05,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:43:05,950 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 856 transitions. [2022-07-19 17:43:05,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-19 17:43:05,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:05,952 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:05,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:06,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-19 17:43:06,172 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:06,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:06,172 INFO L85 PathProgramCache]: Analyzing trace with hash 723082873, now seen corresponding path program 1 times [2022-07-19 17:43:06,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:06,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572053647] [2022-07-19 17:43:06,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:06,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-19 17:43:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-07-19 17:43:06,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:06,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572053647] [2022-07-19 17:43:06,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572053647] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:06,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041573477] [2022-07-19 17:43:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:06,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:06,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:06,283 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:06,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 17:43:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 17:43:06,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2022-07-19 17:43:06,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:06,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041573477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:06,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:06,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-07-19 17:43:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368892914] [2022-07-19 17:43:06,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:06,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:06,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:43:06,467 INFO L87 Difference]: Start difference. First operand 655 states and 856 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:43:06,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:06,531 INFO L93 Difference]: Finished difference Result 1045 states and 1396 transitions. [2022-07-19 17:43:06,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:06,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 267 [2022-07-19 17:43:06,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:06,534 INFO L225 Difference]: With dead ends: 1045 [2022-07-19 17:43:06,534 INFO L226 Difference]: Without dead ends: 667 [2022-07-19 17:43:06,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:43:06,536 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 15 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:06,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 710 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-07-19 17:43:06,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2022-07-19 17:43:06,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 564 states have (on average 1.3120567375886525) internal successors, (740), 569 states have internal predecessors, (740), 65 states have call successors, (65), 37 states have call predecessors, (65), 37 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-19 17:43:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 870 transitions. [2022-07-19 17:43:06,561 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 870 transitions. Word has length 267 [2022-07-19 17:43:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:06,562 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 870 transitions. [2022-07-19 17:43:06,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 17:43:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 870 transitions. [2022-07-19 17:43:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-19 17:43:06,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:06,563 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:06,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:06,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-19 17:43:06,788 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:06,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:06,789 INFO L85 PathProgramCache]: Analyzing trace with hash -185468270, now seen corresponding path program 1 times [2022-07-19 17:43:06,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:06,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474002629] [2022-07-19 17:43:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:06,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:06,925 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-07-19 17:43:06,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:06,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474002629] [2022-07-19 17:43:06,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474002629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:06,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:06,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:43:06,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147533987] [2022-07-19 17:43:06,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:06,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:43:06,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:06,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:43:06,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:43:06,936 INFO L87 Difference]: Start difference. First operand 667 states and 870 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-19 17:43:07,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:07,328 INFO L93 Difference]: Finished difference Result 939 states and 1293 transitions. [2022-07-19 17:43:07,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:43:07,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 268 [2022-07-19 17:43:07,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:07,332 INFO L225 Difference]: With dead ends: 939 [2022-07-19 17:43:07,332 INFO L226 Difference]: Without dead ends: 937 [2022-07-19 17:43:07,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:43:07,333 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 260 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:07,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1663 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 17:43:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2022-07-19 17:43:07,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 673. [2022-07-19 17:43:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 568 states have (on average 1.3098591549295775) internal successors, (744), 574 states have internal predecessors, (744), 66 states have call successors, (66), 38 states have call predecessors, (66), 38 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2022-07-19 17:43:07,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 876 transitions. [2022-07-19 17:43:07,364 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 876 transitions. Word has length 268 [2022-07-19 17:43:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:07,365 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 876 transitions. [2022-07-19 17:43:07,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-19 17:43:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 876 transitions. [2022-07-19 17:43:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-19 17:43:07,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:07,367 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:07,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 17:43:07,367 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1915412215, now seen corresponding path program 1 times [2022-07-19 17:43:07,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:07,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195679258] [2022-07-19 17:43:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:07,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-19 17:43:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,540 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 142 proven. 27 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-07-19 17:43:07,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:07,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195679258] [2022-07-19 17:43:07,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195679258] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:07,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282342602] [2022-07-19 17:43:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:07,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:07,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:07,542 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:07,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 17:43:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:07,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 17:43:07,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 251 proven. 33 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-19 17:43:07,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:43:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 146 proven. 23 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-07-19 17:43:08,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282342602] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:43:08,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:43:08,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 19 [2022-07-19 17:43:08,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724286676] [2022-07-19 17:43:08,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:43:08,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 17:43:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:08,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 17:43:08,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-07-19 17:43:08,084 INFO L87 Difference]: Start difference. First operand 673 states and 876 transitions. Second operand has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2022-07-19 17:43:09,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:09,507 INFO L93 Difference]: Finished difference Result 1913 states and 2671 transitions. [2022-07-19 17:43:09,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-19 17:43:09,507 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) Word has length 276 [2022-07-19 17:43:09,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:09,512 INFO L225 Difference]: With dead ends: 1913 [2022-07-19 17:43:09,512 INFO L226 Difference]: Without dead ends: 1517 [2022-07-19 17:43:09,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 597 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=1121, Unknown=0, NotChecked=0, Total=1332 [2022-07-19 17:43:09,514 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 705 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2970 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:09,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2970 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 17:43:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2022-07-19 17:43:09,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 940. [2022-07-19 17:43:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 795 states have (on average 1.3018867924528301) internal successors, (1035), 802 states have internal predecessors, (1035), 90 states have call successors, (90), 51 states have call predecessors, (90), 54 states have return successors, (95), 90 states have call predecessors, (95), 90 states have call successors, (95) [2022-07-19 17:43:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1220 transitions. [2022-07-19 17:43:09,556 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1220 transitions. Word has length 276 [2022-07-19 17:43:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:09,557 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1220 transitions. [2022-07-19 17:43:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (28), 5 states have call predecessors, (28), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2022-07-19 17:43:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1220 transitions. [2022-07-19 17:43:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-19 17:43:09,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:09,559 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:09,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:09,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:09,780 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:09,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1417941064, now seen corresponding path program 1 times [2022-07-19 17:43:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:09,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211938794] [2022-07-19 17:43:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:09,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-19 17:43:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2022-07-19 17:43:09,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:09,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211938794] [2022-07-19 17:43:09,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211938794] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:09,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434712468] [2022-07-19 17:43:09,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:09,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:09,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:09,870 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:09,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 17:43:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:43:10,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2022-07-19 17:43:10,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:10,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434712468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:10,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:10,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-19 17:43:10,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400708665] [2022-07-19 17:43:10,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:10,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:10,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:10,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:10,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:10,032 INFO L87 Difference]: Start difference. First operand 940 states and 1220 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 17:43:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:10,088 INFO L93 Difference]: Finished difference Result 1743 states and 2304 transitions. [2022-07-19 17:43:10,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:10,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 276 [2022-07-19 17:43:10,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:10,112 INFO L225 Difference]: With dead ends: 1743 [2022-07-19 17:43:10,112 INFO L226 Difference]: Without dead ends: 924 [2022-07-19 17:43:10,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:43:10,117 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 11 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:10,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 710 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:10,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-07-19 17:43:10,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 924. [2022-07-19 17:43:10,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 784 states have (on average 1.2895408163265305) internal successors, (1011), 791 states have internal predecessors, (1011), 86 states have call successors, (86), 51 states have call predecessors, (86), 53 states have return successors, (90), 85 states have call predecessors, (90), 86 states have call successors, (90) [2022-07-19 17:43:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1187 transitions. [2022-07-19 17:43:10,159 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1187 transitions. Word has length 276 [2022-07-19 17:43:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:10,160 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 1187 transitions. [2022-07-19 17:43:10,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 17:43:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1187 transitions. [2022-07-19 17:43:10,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-19 17:43:10,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:10,162 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:10,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:10,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-19 17:43:10,380 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:10,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:10,380 INFO L85 PathProgramCache]: Analyzing trace with hash -818721709, now seen corresponding path program 1 times [2022-07-19 17:43:10,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:10,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646118358] [2022-07-19 17:43:10,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:10,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:43:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 17:43:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-19 17:43:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-19 17:43:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-19 17:43:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-19 17:43:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-19 17:43:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-19 17:43:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-19 17:43:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-07-19 17:43:10,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:10,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646118358] [2022-07-19 17:43:10,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646118358] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:10,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542286363] [2022-07-19 17:43:10,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:10,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:10,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:10,459 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:10,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 17:43:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:10,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:43:10,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2022-07-19 17:43:10,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:10,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542286363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:10,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:10,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-19 17:43:10,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425762786] [2022-07-19 17:43:10,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:10,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:10,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:10,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:10,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:10,621 INFO L87 Difference]: Start difference. First operand 924 states and 1187 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 17:43:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:10,678 INFO L93 Difference]: Finished difference Result 1576 states and 2065 transitions. [2022-07-19 17:43:10,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:10,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 279 [2022-07-19 17:43:10,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:10,681 INFO L225 Difference]: With dead ends: 1576 [2022-07-19 17:43:10,681 INFO L226 Difference]: Without dead ends: 764 [2022-07-19 17:43:10,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:43:10,683 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 8 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:10,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 713 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:43:10,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-07-19 17:43:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 764. [2022-07-19 17:43:10,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 642 states have (on average 1.2850467289719627) internal successors, (825), 649 states have internal predecessors, (825), 77 states have call successors, (77), 44 states have call predecessors, (77), 44 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2022-07-19 17:43:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 979 transitions. [2022-07-19 17:43:10,712 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 979 transitions. Word has length 279 [2022-07-19 17:43:10,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:10,712 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 979 transitions. [2022-07-19 17:43:10,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-19 17:43:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 979 transitions. [2022-07-19 17:43:10,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-19 17:43:10,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:10,714 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:10,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-19 17:43:10,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:10,932 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:10,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:10,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2031857474, now seen corresponding path program 1 times [2022-07-19 17:43:10,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:10,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679683145] [2022-07-19 17:43:10,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:10,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-19 17:43:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-19 17:43:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-19 17:43:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 16 proven. 146 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2022-07-19 17:43:11,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:11,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679683145] [2022-07-19 17:43:11,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679683145] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:11,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097874301] [2022-07-19 17:43:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:11,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:11,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:11,220 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:11,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 17:43:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:11,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-19 17:43:11,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:11,549 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-07-19 17:43:11,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:11,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097874301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:11,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:11,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2022-07-19 17:43:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045633345] [2022-07-19 17:43:11,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:11,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 17:43:11,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:11,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 17:43:11,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2022-07-19 17:43:11,551 INFO L87 Difference]: Start difference. First operand 764 states and 979 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:43:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:12,160 INFO L93 Difference]: Finished difference Result 2072 states and 2753 transitions. [2022-07-19 17:43:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 17:43:12,160 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 291 [2022-07-19 17:43:12,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:12,166 INFO L225 Difference]: With dead ends: 2072 [2022-07-19 17:43:12,166 INFO L226 Difference]: Without dead ends: 1672 [2022-07-19 17:43:12,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=1386, Unknown=0, NotChecked=0, Total=1560 [2022-07-19 17:43:12,168 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1216 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:12,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 3254 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 17:43:12,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2022-07-19 17:43:12,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 919. [2022-07-19 17:43:12,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 766 states have (on average 1.2845953002610966) internal successors, (984), 774 states have internal predecessors, (984), 98 states have call successors, (98), 54 states have call predecessors, (98), 54 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2022-07-19 17:43:12,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1180 transitions. [2022-07-19 17:43:12,229 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1180 transitions. Word has length 291 [2022-07-19 17:43:12,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:12,229 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1180 transitions. [2022-07-19 17:43:12,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:43:12,230 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1180 transitions. [2022-07-19 17:43:12,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-19 17:43:12,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:12,231 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:12,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:12,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-19 17:43:12,444 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:12,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1472400859, now seen corresponding path program 1 times [2022-07-19 17:43:12,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:12,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681495551] [2022-07-19 17:43:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:12,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-19 17:43:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-19 17:43:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-19 17:43:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-19 17:43:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-07-19 17:43:12,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:12,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681495551] [2022-07-19 17:43:12,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681495551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:12,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:12,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:43:12,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264267499] [2022-07-19 17:43:12,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:12,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:43:12,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:12,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:43:12,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:43:12,535 INFO L87 Difference]: Start difference. First operand 919 states and 1180 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:43:12,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:12,874 INFO L93 Difference]: Finished difference Result 2496 states and 3489 transitions. [2022-07-19 17:43:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:43:12,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 297 [2022-07-19 17:43:12,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:12,880 INFO L225 Difference]: With dead ends: 2496 [2022-07-19 17:43:12,880 INFO L226 Difference]: Without dead ends: 1923 [2022-07-19 17:43:12,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:43:12,882 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 559 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:12,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1770 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 17:43:12,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-07-19 17:43:12,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 974. [2022-07-19 17:43:12,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 809 states have (on average 1.2954264524103831) internal successors, (1048), 817 states have internal predecessors, (1048), 110 states have call successors, (110), 54 states have call predecessors, (110), 54 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2022-07-19 17:43:12,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1268 transitions. [2022-07-19 17:43:12,949 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1268 transitions. Word has length 297 [2022-07-19 17:43:12,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:12,949 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1268 transitions. [2022-07-19 17:43:12,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 5 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:43:12,949 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1268 transitions. [2022-07-19 17:43:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-19 17:43:12,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:12,951 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:12,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-19 17:43:12,951 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:12,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:12,951 INFO L85 PathProgramCache]: Analyzing trace with hash -358014121, now seen corresponding path program 1 times [2022-07-19 17:43:12,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:12,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844221410] [2022-07-19 17:43:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:12,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-19 17:43:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-19 17:43:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-19 17:43:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-19 17:43:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-07-19 17:43:13,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:13,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844221410] [2022-07-19 17:43:13,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844221410] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:13,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519284864] [2022-07-19 17:43:13,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:13,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:13,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:13,110 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:13,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 17:43:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:13,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-19 17:43:13,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-19 17:43:13,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:13,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519284864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:13,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:13,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 17 [2022-07-19 17:43:13,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512446796] [2022-07-19 17:43:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:13,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 17:43:13,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:13,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 17:43:13,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:43:13,379 INFO L87 Difference]: Start difference. First operand 974 states and 1268 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:43:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:14,124 INFO L93 Difference]: Finished difference Result 2479 states and 3355 transitions. [2022-07-19 17:43:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 17:43:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 297 [2022-07-19 17:43:14,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:14,130 INFO L225 Difference]: With dead ends: 2479 [2022-07-19 17:43:14,130 INFO L226 Difference]: Without dead ends: 1852 [2022-07-19 17:43:14,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 17:43:14,132 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 1357 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 3539 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:14,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 3539 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 17:43:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-07-19 17:43:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 964. [2022-07-19 17:43:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 802 states have (on average 1.286783042394015) internal successors, (1032), 810 states have internal predecessors, (1032), 107 states have call successors, (107), 54 states have call predecessors, (107), 54 states have return successors, (107), 103 states have call predecessors, (107), 107 states have call successors, (107) [2022-07-19 17:43:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1246 transitions. [2022-07-19 17:43:14,178 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1246 transitions. Word has length 297 [2022-07-19 17:43:14,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:14,179 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 1246 transitions. [2022-07-19 17:43:14,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 17:43:14,179 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1246 transitions. [2022-07-19 17:43:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-19 17:43:14,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:14,180 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:14,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:14,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-07-19 17:43:14,398 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:14,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:14,398 INFO L85 PathProgramCache]: Analyzing trace with hash 529040727, now seen corresponding path program 1 times [2022-07-19 17:43:14,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:14,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005370492] [2022-07-19 17:43:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:14,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-19 17:43:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-19 17:43:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-19 17:43:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-19 17:43:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,569 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-07-19 17:43:14,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:14,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005370492] [2022-07-19 17:43:14,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005370492] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:14,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851497056] [2022-07-19 17:43:14,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:14,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:14,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:14,571 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:14,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-19 17:43:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-19 17:43:14,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-07-19 17:43:14,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:43:14,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851497056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:14,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:43:14,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2022-07-19 17:43:14,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661885771] [2022-07-19 17:43:14,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:14,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 17:43:14,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:14,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 17:43:14,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2022-07-19 17:43:14,898 INFO L87 Difference]: Start difference. First operand 964 states and 1246 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-19 17:43:15,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:15,778 INFO L93 Difference]: Finished difference Result 3176 states and 4307 transitions. [2022-07-19 17:43:15,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 17:43:15,779 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 297 [2022-07-19 17:43:15,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:15,788 INFO L225 Difference]: With dead ends: 3176 [2022-07-19 17:43:15,788 INFO L226 Difference]: Without dead ends: 2562 [2022-07-19 17:43:15,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=1153, Unknown=0, NotChecked=0, Total=1332 [2022-07-19 17:43:15,791 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 1318 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:15,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 3707 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 17:43:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2022-07-19 17:43:15,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 1345. [2022-07-19 17:43:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1107 states have (on average 1.2836495031616983) internal successors, (1421), 1119 states have internal predecessors, (1421), 163 states have call successors, (163), 74 states have call predecessors, (163), 74 states have return successors, (163), 155 states have call predecessors, (163), 163 states have call successors, (163) [2022-07-19 17:43:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1747 transitions. [2022-07-19 17:43:15,876 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1747 transitions. Word has length 297 [2022-07-19 17:43:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:15,876 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 1747 transitions. [2022-07-19 17:43:15,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-19 17:43:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1747 transitions. [2022-07-19 17:43:15,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-19 17:43:15,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:15,878 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:15,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-19 17:43:16,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-07-19 17:43:16,092 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:16,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1597737013, now seen corresponding path program 1 times [2022-07-19 17:43:16,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:16,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893134660] [2022-07-19 17:43:16,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:16,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-19 17:43:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-19 17:43:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-19 17:43:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-19 17:43:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-19 17:43:16,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:16,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893134660] [2022-07-19 17:43:16,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893134660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:16,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:16,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:43:16,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814781397] [2022-07-19 17:43:16,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:16,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:43:16,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:16,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:43:16,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:16,176 INFO L87 Difference]: Start difference. First operand 1345 states and 1747 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-19 17:43:16,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:16,629 INFO L93 Difference]: Finished difference Result 2402 states and 3143 transitions. [2022-07-19 17:43:16,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:43:16,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 311 [2022-07-19 17:43:16,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:16,634 INFO L225 Difference]: With dead ends: 2402 [2022-07-19 17:43:16,634 INFO L226 Difference]: Without dead ends: 1424 [2022-07-19 17:43:16,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:43:16,636 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 500 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:16,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 954 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 17:43:16,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-07-19 17:43:16,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1151. [2022-07-19 17:43:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 956 states have (on average 1.2646443514644352) internal successors, (1209), 962 states have internal predecessors, (1209), 134 states have call successors, (134), 60 states have call predecessors, (134), 60 states have return successors, (134), 128 states have call predecessors, (134), 134 states have call successors, (134) [2022-07-19 17:43:16,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1477 transitions. [2022-07-19 17:43:16,711 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1477 transitions. Word has length 311 [2022-07-19 17:43:16,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:16,711 INFO L495 AbstractCegarLoop]: Abstraction has 1151 states and 1477 transitions. [2022-07-19 17:43:16,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-19 17:43:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1477 transitions. [2022-07-19 17:43:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-07-19 17:43:16,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:16,714 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:16,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-19 17:43:16,714 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:16,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:16,715 INFO L85 PathProgramCache]: Analyzing trace with hash 522126260, now seen corresponding path program 1 times [2022-07-19 17:43:16,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:16,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794687697] [2022-07-19 17:43:16,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:16,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-19 17:43:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-19 17:43:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-19 17:43:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-19 17:43:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-19 17:43:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-19 17:43:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-19 17:43:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-19 17:43:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-07-19 17:43:16,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:16,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794687697] [2022-07-19 17:43:16,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794687697] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:43:16,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998282377] [2022-07-19 17:43:16,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:16,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:43:16,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:43:16,931 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:43:16,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-19 17:43:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:17,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 36 conjunts are in the unsatisfiable core [2022-07-19 17:43:17,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:43:17,448 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 224 proven. 80 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-19 17:43:17,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:43:17,887 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 34 proven. 76 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-07-19 17:43:17,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998282377] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:43:17,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:43:17,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 33 [2022-07-19 17:43:17,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332799394] [2022-07-19 17:43:17,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:43:17,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-19 17:43:17,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:17,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-19 17:43:17,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-07-19 17:43:17,889 INFO L87 Difference]: Start difference. First operand 1151 states and 1477 transitions. Second operand has 33 states, 33 states have (on average 8.121212121212121) internal successors, (268), 28 states have internal predecessors, (268), 8 states have call successors, (53), 9 states have call predecessors, (53), 14 states have return successors, (53), 12 states have call predecessors, (53), 8 states have call successors, (53) [2022-07-19 17:43:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:55,756 INFO L93 Difference]: Finished difference Result 20381 states and 28708 transitions. [2022-07-19 17:43:55,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 740 states. [2022-07-19 17:43:55,756 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 8.121212121212121) internal successors, (268), 28 states have internal predecessors, (268), 8 states have call successors, (53), 9 states have call predecessors, (53), 14 states have return successors, (53), 12 states have call predecessors, (53), 8 states have call successors, (53) Word has length 350 [2022-07-19 17:43:55,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:55,817 INFO L225 Difference]: With dead ends: 20381 [2022-07-19 17:43:55,817 INFO L226 Difference]: Without dead ends: 19531 [2022-07-19 17:43:55,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1527 GetRequests, 758 SyntacticMatches, 1 SemanticMatches, 768 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269888 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=35409, Invalid=556721, Unknown=0, NotChecked=0, Total=592130 [2022-07-19 17:43:55,875 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 14246 mSDsluCounter, 18338 mSDsCounter, 0 mSdLazyCounter, 33131 mSolverCounterSat, 10303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14246 SdHoareTripleChecker+Valid, 19359 SdHoareTripleChecker+Invalid, 43434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10303 IncrementalHoareTripleChecker+Valid, 33131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:55,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14246 Valid, 19359 Invalid, 43434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10303 Valid, 33131 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2022-07-19 17:43:55,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19531 states. [2022-07-19 17:43:56,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19531 to 4397. [2022-07-19 17:43:56,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 3509 states have (on average 1.2673126246793958) internal successors, (4447), 3557 states have internal predecessors, (4447), 618 states have call successors, (618), 248 states have call predecessors, (618), 269 states have return successors, (648), 591 states have call predecessors, (648), 618 states have call successors, (648) [2022-07-19 17:43:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 5713 transitions. [2022-07-19 17:43:56,436 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 5713 transitions. Word has length 350 [2022-07-19 17:43:56,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:56,437 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 5713 transitions. [2022-07-19 17:43:56,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 8.121212121212121) internal successors, (268), 28 states have internal predecessors, (268), 8 states have call successors, (53), 9 states have call predecessors, (53), 14 states have return successors, (53), 12 states have call predecessors, (53), 8 states have call successors, (53) [2022-07-19 17:43:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 5713 transitions. [2022-07-19 17:43:56,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-07-19 17:43:56,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:56,445 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:56,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-07-19 17:43:56,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-07-19 17:43:56,664 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:56,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:56,665 INFO L85 PathProgramCache]: Analyzing trace with hash 74438677, now seen corresponding path program 1 times [2022-07-19 17:43:56,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:56,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260236801] [2022-07-19 17:43:56,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:56,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-19 17:43:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:43:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-19 17:43:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-19 17:43:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-19 17:43:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-19 17:43:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-19 17:43:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-19 17:43:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-19 17:43:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-19 17:43:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:56,795 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-07-19 17:43:56,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:56,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260236801] [2022-07-19 17:43:56,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260236801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:56,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:56,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:43:56,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293572570] [2022-07-19 17:43:56,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:56,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:43:56,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:56,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:43:56,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:43:56,798 INFO L87 Difference]: Start difference. First operand 4397 states and 5713 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-19 17:43:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:57,278 INFO L93 Difference]: Finished difference Result 8386 states and 10940 transitions. [2022-07-19 17:43:57,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:43:57,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 350 [2022-07-19 17:43:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:57,294 INFO L225 Difference]: With dead ends: 8386 [2022-07-19 17:43:57,294 INFO L226 Difference]: Without dead ends: 4397 [2022-07-19 17:43:57,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:43:57,301 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 289 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:57,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 467 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:43:57,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4397 states. [2022-07-19 17:43:57,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4397 to 4397. [2022-07-19 17:43:57,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 3509 states have (on average 1.2661726987745796) internal successors, (4443), 3557 states have internal predecessors, (4443), 618 states have call successors, (618), 248 states have call predecessors, (618), 269 states have return successors, (648), 591 states have call predecessors, (648), 618 states have call successors, (648) [2022-07-19 17:43:57,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 5709 transitions. [2022-07-19 17:43:57,687 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 5709 transitions. Word has length 350 [2022-07-19 17:43:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:57,688 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 5709 transitions. [2022-07-19 17:43:57,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-19 17:43:57,688 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 5709 transitions. [2022-07-19 17:43:57,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-07-19 17:43:57,695 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:57,695 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:57,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-19 17:43:57,695 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:57,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:57,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2012967532, now seen corresponding path program 1 times [2022-07-19 17:43:57,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:57,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890252050] [2022-07-19 17:43:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:57,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:43:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-19 17:43:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-19 17:43:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-19 17:43:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-19 17:43:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-19 17:43:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-19 17:43:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-19 17:43:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-19 17:43:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-19 17:43:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2022-07-19 17:43:57,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:57,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890252050] [2022-07-19 17:43:57,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890252050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:57,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:57,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:57,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846900457] [2022-07-19 17:43:57,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:57,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:57,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:57,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:57,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:57,774 INFO L87 Difference]: Start difference. First operand 4397 states and 5709 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 17:43:58,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:58,570 INFO L93 Difference]: Finished difference Result 12258 states and 15990 transitions. [2022-07-19 17:43:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:43:58,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 350 [2022-07-19 17:43:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:58,592 INFO L225 Difference]: With dead ends: 12258 [2022-07-19 17:43:58,592 INFO L226 Difference]: Without dead ends: 8310 [2022-07-19 17:43:58,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:43:58,603 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 215 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:58,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 642 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:43:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2022-07-19 17:43:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 4629. [2022-07-19 17:43:59,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 3741 states have (on average 1.2619620422346967) internal successors, (4721), 3789 states have internal predecessors, (4721), 618 states have call successors, (618), 248 states have call predecessors, (618), 269 states have return successors, (648), 591 states have call predecessors, (648), 618 states have call successors, (648) [2022-07-19 17:43:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 5987 transitions. [2022-07-19 17:43:59,032 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 5987 transitions. Word has length 350 [2022-07-19 17:43:59,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:59,032 INFO L495 AbstractCegarLoop]: Abstraction has 4629 states and 5987 transitions. [2022-07-19 17:43:59,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 17:43:59,032 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 5987 transitions. [2022-07-19 17:43:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-07-19 17:43:59,040 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:59,040 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:59,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-19 17:43:59,041 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:59,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:59,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1680324394, now seen corresponding path program 1 times [2022-07-19 17:43:59,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:59,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616632366] [2022-07-19 17:43:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:59,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:43:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:43:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:43:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:43:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:43:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:43:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:43:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:43:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:43:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:43:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:43:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:43:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:43:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:43:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:43:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:43:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-19 17:43:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-19 17:43:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-19 17:43:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-19 17:43:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-19 17:43:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-19 17:43:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-19 17:43:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-19 17:43:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-19 17:43:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-19 17:43:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-19 17:43:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-19 17:43:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2022-07-19 17:43:59,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:59,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616632366] [2022-07-19 17:43:59,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616632366] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:59,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:59,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:43:59,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647573166] [2022-07-19 17:43:59,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:59,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:43:59,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:59,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:43:59,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:59,131 INFO L87 Difference]: Start difference. First operand 4629 states and 5987 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 17:43:59,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:59,653 INFO L93 Difference]: Finished difference Result 8805 states and 11433 transitions. [2022-07-19 17:43:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:43:59,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 350 [2022-07-19 17:43:59,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:59,664 INFO L225 Difference]: With dead ends: 8805 [2022-07-19 17:43:59,664 INFO L226 Difference]: Without dead ends: 4498 [2022-07-19 17:43:59,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:43:59,671 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 54 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:59,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 545 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:43:59,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2022-07-19 17:44:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 4498. [2022-07-19 17:44:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 3610 states have (on average 1.2581717451523546) internal successors, (4542), 3658 states have internal predecessors, (4542), 618 states have call successors, (618), 248 states have call predecessors, (618), 269 states have return successors, (648), 591 states have call predecessors, (648), 618 states have call successors, (648) [2022-07-19 17:44:00,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 5808 transitions. [2022-07-19 17:44:00,035 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 5808 transitions. Word has length 350 [2022-07-19 17:44:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:44:00,035 INFO L495 AbstractCegarLoop]: Abstraction has 4498 states and 5808 transitions. [2022-07-19 17:44:00,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 17:44:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 5808 transitions. [2022-07-19 17:44:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-07-19 17:44:00,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:44:00,043 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:44:00,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-19 17:44:00,043 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:44:00,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:44:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1229792955, now seen corresponding path program 1 times [2022-07-19 17:44:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:44:00,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749578749] [2022-07-19 17:44:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:44:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:44:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:44:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:44:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:44:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:44:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:44:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:44:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:44:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:44:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:44:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:44:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:44:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:44:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:44:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:44:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:44:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:44:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:44:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-19 17:44:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-19 17:44:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-19 17:44:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-19 17:44:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-19 17:44:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-19 17:44:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-19 17:44:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-19 17:44:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-19 17:44:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-19 17:44:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-19 17:44:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-19 17:44:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-19 17:44:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 44 proven. 5 refuted. 0 times theorem prover too weak. 831 trivial. 0 not checked. [2022-07-19 17:44:00,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:44:00,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749578749] [2022-07-19 17:44:00,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749578749] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:44:00,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175426887] [2022-07-19 17:44:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:44:00,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:44:00,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:44:00,127 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:44:00,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-19 17:44:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:00,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:44:00,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:44:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-07-19 17:44:00,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:44:00,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175426887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:44:00,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:44:00,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-19 17:44:00,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272757346] [2022-07-19 17:44:00,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:44:00,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:44:00,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:44:00,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:44:00,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:44:00,329 INFO L87 Difference]: Start difference. First operand 4498 states and 5808 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 17:44:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:44:00,720 INFO L93 Difference]: Finished difference Result 9157 states and 11820 transitions. [2022-07-19 17:44:00,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:44:00,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 351 [2022-07-19 17:44:00,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:44:00,731 INFO L225 Difference]: With dead ends: 9157 [2022-07-19 17:44:00,731 INFO L226 Difference]: Without dead ends: 4432 [2022-07-19 17:44:00,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:44:00,738 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 40 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:44:00,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 666 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:44:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2022-07-19 17:44:01,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 4432. [2022-07-19 17:44:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 3565 states have (on average 1.2244039270687237) internal successors, (4365), 3604 states have internal predecessors, (4365), 618 states have call successors, (618), 248 states have call predecessors, (618), 248 states have return successors, (618), 579 states have call predecessors, (618), 618 states have call successors, (618) [2022-07-19 17:44:01,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 5601 transitions. [2022-07-19 17:44:01,090 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 5601 transitions. Word has length 351 [2022-07-19 17:44:01,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:44:01,090 INFO L495 AbstractCegarLoop]: Abstraction has 4432 states and 5601 transitions. [2022-07-19 17:44:01,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 17:44:01,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 5601 transitions. [2022-07-19 17:44:01,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-07-19 17:44:01,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:44:01,096 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:44:01,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-19 17:44:01,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:44:01,307 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:44:01,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:44:01,308 INFO L85 PathProgramCache]: Analyzing trace with hash 877154623, now seen corresponding path program 1 times [2022-07-19 17:44:01,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:44:01,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681369922] [2022-07-19 17:44:01,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:44:01,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:44:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:44:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:44:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:44:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:44:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:44:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:44:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:44:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:44:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:44:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:44:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:44:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:44:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:44:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:44:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:44:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:44:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:44:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:44:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-19 17:44:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-19 17:44:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-19 17:44:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-19 17:44:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-19 17:44:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-19 17:44:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-19 17:44:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-19 17:44:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-19 17:44:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-19 17:44:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-19 17:44:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-19 17:44:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2022-07-19 17:44:01,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:44:01,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681369922] [2022-07-19 17:44:01,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681369922] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:44:01,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428343681] [2022-07-19 17:44:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:44:01,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:44:01,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:44:01,636 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:44:01,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-19 17:44:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:01,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 36 conjunts are in the unsatisfiable core [2022-07-19 17:44:01,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:44:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 190 proven. 104 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-07-19 17:44:02,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:44:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 33 proven. 71 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-07-19 17:44:02,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428343681] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:44:02,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:44:02,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 35 [2022-07-19 17:44:02,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134418142] [2022-07-19 17:44:02,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:44:02,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-19 17:44:02,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:44:02,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-19 17:44:02,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1099, Unknown=0, NotChecked=0, Total=1190 [2022-07-19 17:44:02,594 INFO L87 Difference]: Start difference. First operand 4432 states and 5601 transitions. Second operand has 35 states, 35 states have (on average 7.685714285714286) internal successors, (269), 30 states have internal predecessors, (269), 9 states have call successors, (54), 9 states have call predecessors, (54), 14 states have return successors, (54), 13 states have call predecessors, (54), 9 states have call successors, (54) [2022-07-19 17:44:41,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:44:41,799 INFO L93 Difference]: Finished difference Result 26671 states and 35065 transitions. [2022-07-19 17:44:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 598 states. [2022-07-19 17:44:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 7.685714285714286) internal successors, (269), 30 states have internal predecessors, (269), 9 states have call successors, (54), 9 states have call predecessors, (54), 14 states have return successors, (54), 13 states have call predecessors, (54), 9 states have call successors, (54) Word has length 351 [2022-07-19 17:44:41,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:44:41,846 INFO L225 Difference]: With dead ends: 26671 [2022-07-19 17:44:41,847 INFO L226 Difference]: Without dead ends: 22757 [2022-07-19 17:44:41,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1387 GetRequests, 758 SyntacticMatches, 1 SemanticMatches, 628 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173091 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=22334, Invalid=373936, Unknown=0, NotChecked=0, Total=396270 [2022-07-19 17:44:41,871 INFO L413 NwaCegarLoop]: 1398 mSDtfsCounter, 7464 mSDsluCounter, 21553 mSDsCounter, 0 mSdLazyCounter, 29998 mSolverCounterSat, 6197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7464 SdHoareTripleChecker+Valid, 22951 SdHoareTripleChecker+Invalid, 36195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6197 IncrementalHoareTripleChecker+Valid, 29998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:44:41,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7464 Valid, 22951 Invalid, 36195 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6197 Valid, 29998 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2022-07-19 17:44:41,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22757 states. [2022-07-19 17:44:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22757 to 5777. [2022-07-19 17:44:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5777 states, 4736 states have (on average 1.216427364864865) internal successors, (5761), 4781 states have internal predecessors, (5761), 716 states have call successors, (716), 324 states have call predecessors, (716), 324 states have return successors, (716), 671 states have call predecessors, (716), 716 states have call successors, (716) [2022-07-19 17:44:42,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5777 states to 5777 states and 7193 transitions. [2022-07-19 17:44:42,651 INFO L78 Accepts]: Start accepts. Automaton has 5777 states and 7193 transitions. Word has length 351 [2022-07-19 17:44:42,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:44:42,651 INFO L495 AbstractCegarLoop]: Abstraction has 5777 states and 7193 transitions. [2022-07-19 17:44:42,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.685714285714286) internal successors, (269), 30 states have internal predecessors, (269), 9 states have call successors, (54), 9 states have call predecessors, (54), 14 states have return successors, (54), 13 states have call predecessors, (54), 9 states have call successors, (54) [2022-07-19 17:44:42,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5777 states and 7193 transitions. [2022-07-19 17:44:42,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-07-19 17:44:42,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:44:42,660 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:44:42,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-07-19 17:44:42,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:44:42,875 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:44:42,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:44:42,876 INFO L85 PathProgramCache]: Analyzing trace with hash 554662859, now seen corresponding path program 1 times [2022-07-19 17:44:42,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:44:42,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312021130] [2022-07-19 17:44:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:44:42,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:44:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:44:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:44:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:44:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:44:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:44:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:44:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:42,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:44:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:44:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:44:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:44:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:44:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:44:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:44:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:44:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:44:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:44:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:44:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-19 17:44:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-19 17:44:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-19 17:44:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-19 17:44:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-19 17:44:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-19 17:44:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-19 17:44:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-19 17:44:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-19 17:44:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-19 17:44:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-19 17:44:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-19 17:44:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-19 17:44:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-19 17:44:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2022-07-19 17:44:43,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:44:43,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312021130] [2022-07-19 17:44:43,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312021130] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:44:43,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634296298] [2022-07-19 17:44:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:44:43,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:44:43,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:44:43,063 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:44:43,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-19 17:44:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:44:43,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 44 conjunts are in the unsatisfiable core [2022-07-19 17:44:43,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:44:43,666 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 327 proven. 118 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-07-19 17:44:43,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:44:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 50 proven. 204 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-07-19 17:44:44,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634296298] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:44:44,239 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:44:44,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 19] total 41 [2022-07-19 17:44:44,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264060245] [2022-07-19 17:44:44,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:44:44,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-07-19 17:44:44,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:44:44,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-07-19 17:44:44,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1527, Unknown=0, NotChecked=0, Total=1640 [2022-07-19 17:44:44,241 INFO L87 Difference]: Start difference. First operand 5777 states and 7193 transitions. Second operand has 41 states, 40 states have (on average 7.9) internal successors, (316), 35 states have internal predecessors, (316), 11 states have call successors, (65), 10 states have call predecessors, (65), 12 states have return successors, (66), 14 states have call predecessors, (66), 10 states have call successors, (66) [2022-07-19 17:45:26,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:45:26,519 INFO L93 Difference]: Finished difference Result 76068 states and 106535 transitions. [2022-07-19 17:45:26,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 581 states. [2022-07-19 17:45:26,519 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 7.9) internal successors, (316), 35 states have internal predecessors, (316), 11 states have call successors, (65), 10 states have call predecessors, (65), 12 states have return successors, (66), 14 states have call predecessors, (66), 10 states have call successors, (66) Word has length 361 [2022-07-19 17:45:26,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:45:26,695 INFO L225 Difference]: With dead ends: 76068 [2022-07-19 17:45:26,695 INFO L226 Difference]: Without dead ends: 70894 [2022-07-19 17:45:26,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1390 GetRequests, 774 SyntacticMatches, 0 SemanticMatches, 616 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172521 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=24117, Invalid=357189, Unknown=0, NotChecked=0, Total=381306 [2022-07-19 17:45:26,735 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 6295 mSDsluCounter, 36647 mSDsCounter, 0 mSdLazyCounter, 42141 mSolverCounterSat, 5846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6321 SdHoareTripleChecker+Valid, 38294 SdHoareTripleChecker+Invalid, 47987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5846 IncrementalHoareTripleChecker+Valid, 42141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:45:26,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6321 Valid, 38294 Invalid, 47987 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5846 Valid, 42141 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2022-07-19 17:45:26,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70894 states. [2022-07-19 17:45:28,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70894 to 6229. [2022-07-19 17:45:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6229 states, 5134 states have (on average 1.2126996493961824) internal successors, (6226), 5179 states have internal predecessors, (6226), 745 states have call successors, (745), 347 states have call predecessors, (745), 349 states have return successors, (749), 702 states have call predecessors, (749), 745 states have call successors, (749) [2022-07-19 17:45:28,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6229 states to 6229 states and 7720 transitions. [2022-07-19 17:45:28,265 INFO L78 Accepts]: Start accepts. Automaton has 6229 states and 7720 transitions. Word has length 361 [2022-07-19 17:45:28,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:45:28,266 INFO L495 AbstractCegarLoop]: Abstraction has 6229 states and 7720 transitions. [2022-07-19 17:45:28,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 7.9) internal successors, (316), 35 states have internal predecessors, (316), 11 states have call successors, (65), 10 states have call predecessors, (65), 12 states have return successors, (66), 14 states have call predecessors, (66), 10 states have call successors, (66) [2022-07-19 17:45:28,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6229 states and 7720 transitions. [2022-07-19 17:45:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-07-19 17:45:28,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:45:28,275 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:45:28,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-19 17:45:28,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:45:28,476 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:45:28,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:45:28,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1511520879, now seen corresponding path program 1 times [2022-07-19 17:45:28,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:45:28,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658273672] [2022-07-19 17:45:28,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:45:28,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:45:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:45:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:45:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:45:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 17:45:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 17:45:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:45:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:45:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:45:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:45:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:45:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:45:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:45:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-19 17:45:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:45:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:45:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:45:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-19 17:45:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-19 17:45:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-19 17:45:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-19 17:45:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-19 17:45:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-19 17:45:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-19 17:45:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-19 17:45:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-19 17:45:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-19 17:45:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-19 17:45:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-19 17:45:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-07-19 17:45:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-19 17:45:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-19 17:45:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 9 proven. 136 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-07-19 17:45:28,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:45:28,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658273672] [2022-07-19 17:45:28,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658273672] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:45:28,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136279108] [2022-07-19 17:45:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:45:28,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:45:28,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:45:28,551 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:45:28,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-19 17:45:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:28,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:45:28,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:45:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2022-07-19 17:45:28,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:45:28,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136279108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:45:28,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:45:28,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-07-19 17:45:28,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20981667] [2022-07-19 17:45:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:45:28,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:45:28,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:45:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:45:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:45:28,939 INFO L87 Difference]: Start difference. First operand 6229 states and 7720 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-19 17:45:29,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:45:29,897 INFO L93 Difference]: Finished difference Result 11618 states and 14469 transitions. [2022-07-19 17:45:29,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:45:29,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 364 [2022-07-19 17:45:29,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:45:29,910 INFO L225 Difference]: With dead ends: 11618 [2022-07-19 17:45:29,911 INFO L226 Difference]: Without dead ends: 6257 [2022-07-19 17:45:29,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:45:29,919 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 285 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:45:29,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 520 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:45:29,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6257 states. [2022-07-19 17:45:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6257 to 6229. [2022-07-19 17:45:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6229 states, 5134 states have (on average 1.2113361901051811) internal successors, (6219), 5179 states have internal predecessors, (6219), 745 states have call successors, (745), 347 states have call predecessors, (745), 349 states have return successors, (749), 702 states have call predecessors, (749), 745 states have call successors, (749) [2022-07-19 17:45:30,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6229 states to 6229 states and 7713 transitions. [2022-07-19 17:45:30,739 INFO L78 Accepts]: Start accepts. Automaton has 6229 states and 7713 transitions. Word has length 364 [2022-07-19 17:45:30,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:45:30,739 INFO L495 AbstractCegarLoop]: Abstraction has 6229 states and 7713 transitions. [2022-07-19 17:45:30,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-19 17:45:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 6229 states and 7713 transitions. [2022-07-19 17:45:30,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-07-19 17:45:30,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:45:30,748 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:45:30,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-19 17:45:30,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:45:30,949 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:45:30,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:45:30,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1157638044, now seen corresponding path program 1 times [2022-07-19 17:45:30,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:45:30,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432614563] [2022-07-19 17:45:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:45:30,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:45:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:45:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:45:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:45:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 17:45:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 17:45:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:45:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:45:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:45:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:45:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:45:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:45:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:45:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-19 17:45:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:45:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:45:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:30,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:45:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-19 17:45:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-19 17:45:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-19 17:45:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-19 17:45:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-19 17:45:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-19 17:45:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-19 17:45:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-19 17:45:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-19 17:45:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-19 17:45:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-19 17:45:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-19 17:45:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-19 17:45:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-07-19 17:45:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-19 17:45:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 943 backedges. 9 proven. 136 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-07-19 17:45:31,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:45:31,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432614563] [2022-07-19 17:45:31,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432614563] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:45:31,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091303845] [2022-07-19 17:45:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:45:31,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:45:31,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:45:31,024 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:45:31,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-19 17:45:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:31,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:45:31,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:45:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 943 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-07-19 17:45:31,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:45:31,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091303845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:45:31,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:45:31,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-07-19 17:45:31,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738793604] [2022-07-19 17:45:31,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:45:31,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:45:31,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:45:31,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:45:31,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:45:31,454 INFO L87 Difference]: Start difference. First operand 6229 states and 7713 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-19 17:45:32,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:45:32,403 INFO L93 Difference]: Finished difference Result 11760 states and 14624 transitions. [2022-07-19 17:45:32,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:45:32,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 364 [2022-07-19 17:45:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:45:32,417 INFO L225 Difference]: With dead ends: 11760 [2022-07-19 17:45:32,417 INFO L226 Difference]: Without dead ends: 6292 [2022-07-19 17:45:32,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:45:32,426 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 201 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:45:32,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 504 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:45:32,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6292 states. [2022-07-19 17:45:33,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6292 to 6271. [2022-07-19 17:45:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6271 states, 5176 states have (on average 1.2069165378670788) internal successors, (6247), 5221 states have internal predecessors, (6247), 745 states have call successors, (745), 347 states have call predecessors, (745), 349 states have return successors, (749), 702 states have call predecessors, (749), 745 states have call successors, (749) [2022-07-19 17:45:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 7741 transitions. [2022-07-19 17:45:33,243 INFO L78 Accepts]: Start accepts. Automaton has 6271 states and 7741 transitions. Word has length 364 [2022-07-19 17:45:33,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:45:33,244 INFO L495 AbstractCegarLoop]: Abstraction has 6271 states and 7741 transitions. [2022-07-19 17:45:33,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-19 17:45:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6271 states and 7741 transitions. [2022-07-19 17:45:33,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-07-19 17:45:33,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:45:33,254 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:45:33,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-19 17:45:33,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:45:33,467 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:45:33,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:45:33,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1253418756, now seen corresponding path program 1 times [2022-07-19 17:45:33,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:45:33,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14557647] [2022-07-19 17:45:33,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:45:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:45:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:45:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:45:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:45:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 17:45:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-19 17:45:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:45:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:45:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:45:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 17:45:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:45:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:45:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:45:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-19 17:45:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:45:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:45:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:45:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-19 17:45:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-19 17:45:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-19 17:45:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-19 17:45:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-19 17:45:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-19 17:45:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-19 17:45:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-07-19 17:45:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-19 17:45:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-19 17:45:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-19 17:45:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-19 17:45:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-19 17:45:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-19 17:45:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-07-19 17:45:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,628 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 9 proven. 136 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-07-19 17:45:33,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:45:33,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14557647] [2022-07-19 17:45:33,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14557647] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:45:33,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547517281] [2022-07-19 17:45:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:45:33,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:45:33,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:45:33,631 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:45:33,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-19 17:45:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:33,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:45:33,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:45:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2022-07-19 17:45:33,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:45:33,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547517281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:45:33,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:45:33,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-19 17:45:33,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951657882] [2022-07-19 17:45:33,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:45:33,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:45:33,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:45:33,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:45:33,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:45:33,832 INFO L87 Difference]: Start difference. First operand 6271 states and 7741 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 17:45:34,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:45:34,618 INFO L93 Difference]: Finished difference Result 12097 states and 14970 transitions. [2022-07-19 17:45:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:45:34,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 365 [2022-07-19 17:45:34,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:45:34,633 INFO L225 Difference]: With dead ends: 12097 [2022-07-19 17:45:34,633 INFO L226 Difference]: Without dead ends: 5827 [2022-07-19 17:45:34,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:45:34,646 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 28 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:45:34,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 673 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:45:34,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5827 states. [2022-07-19 17:45:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5827 to 5827. [2022-07-19 17:45:35,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5827 states, 4785 states have (on average 1.2100313479623825) internal successors, (5790), 4830 states have internal predecessors, (5790), 716 states have call successors, (716), 325 states have call predecessors, (716), 325 states have return successors, (716), 671 states have call predecessors, (716), 716 states have call successors, (716) [2022-07-19 17:45:35,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5827 states to 5827 states and 7222 transitions. [2022-07-19 17:45:35,586 INFO L78 Accepts]: Start accepts. Automaton has 5827 states and 7222 transitions. Word has length 365 [2022-07-19 17:45:35,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:45:35,586 INFO L495 AbstractCegarLoop]: Abstraction has 5827 states and 7222 transitions. [2022-07-19 17:45:35,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 17:45:35,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5827 states and 7222 transitions. [2022-07-19 17:45:35,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-07-19 17:45:35,594 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:45:35,594 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:45:35,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-19 17:45:35,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:45:35,795 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:45:35,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:45:35,795 INFO L85 PathProgramCache]: Analyzing trace with hash -867693373, now seen corresponding path program 1 times [2022-07-19 17:45:35,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:45:35,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010871875] [2022-07-19 17:45:35,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:45:35,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:45:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:45:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:45:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:45:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:45:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:45:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:45:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:45:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:45:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:45:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:45:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:45:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:45:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:45:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:45:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:45:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:45:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:45:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-19 17:45:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-19 17:45:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-19 17:45:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-19 17:45:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-19 17:45:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-19 17:45:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-07-19 17:45:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-19 17:45:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-19 17:45:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-19 17:45:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-07-19 17:45:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-07-19 17:45:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-19 17:45:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-19 17:45:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-19 17:45:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:36,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 16 proven. 34 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2022-07-19 17:45:36,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:45:36,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010871875] [2022-07-19 17:45:36,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010871875] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:45:36,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316144207] [2022-07-19 17:45:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:45:36,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:45:36,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:45:36,012 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:45:36,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-19 17:45:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:45:36,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1331 conjuncts, 66 conjunts are in the unsatisfiable core [2022-07-19 17:45:36,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:45:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 456 proven. 205 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-07-19 17:45:37,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:45:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 112 proven. 189 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-07-19 17:45:38,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316144207] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:45:38,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:45:38,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 27, 21] total 56 [2022-07-19 17:45:38,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234208904] [2022-07-19 17:45:38,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:45:38,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-07-19 17:45:38,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:45:38,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-07-19 17:45:38,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=2866, Unknown=0, NotChecked=0, Total=3080 [2022-07-19 17:45:38,120 INFO L87 Difference]: Start difference. First operand 5827 states and 7222 transitions. Second operand has 56 states, 56 states have (on average 7.017857142857143) internal successors, (393), 48 states have internal predecessors, (393), 17 states have call successors, (68), 13 states have call predecessors, (68), 19 states have return successors, (70), 21 states have call predecessors, (70), 17 states have call successors, (70) [2022-07-19 17:46:12,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:46:12,944 INFO L93 Difference]: Finished difference Result 41735 states and 56199 transitions. [2022-07-19 17:46:12,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 322 states. [2022-07-19 17:46:12,945 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 7.017857142857143) internal successors, (393), 48 states have internal predecessors, (393), 17 states have call successors, (68), 13 states have call predecessors, (68), 19 states have return successors, (70), 21 states have call predecessors, (70), 17 states have call successors, (70) Word has length 372 [2022-07-19 17:46:12,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:46:13,007 INFO L225 Difference]: With dead ends: 41735 [2022-07-19 17:46:13,007 INFO L226 Difference]: Without dead ends: 36521 [2022-07-19 17:46:13,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1159 GetRequests, 787 SyntacticMatches, 0 SemanticMatches, 372 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53327 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=7961, Invalid=131541, Unknown=0, NotChecked=0, Total=139502 [2022-07-19 17:46:13,023 INFO L413 NwaCegarLoop]: 2215 mSDtfsCounter, 3215 mSDsluCounter, 56945 mSDsCounter, 0 mSdLazyCounter, 41632 mSolverCounterSat, 2397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3229 SdHoareTripleChecker+Valid, 59160 SdHoareTripleChecker+Invalid, 44029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2397 IncrementalHoareTripleChecker+Valid, 41632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-07-19 17:46:13,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3229 Valid, 59160 Invalid, 44029 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2397 Valid, 41632 Invalid, 0 Unknown, 0 Unchecked, 16.7s Time] [2022-07-19 17:46:13,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36521 states. [2022-07-19 17:46:14,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36521 to 5821. [2022-07-19 17:46:14,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5821 states, 4778 states have (on average 1.2092925910422772) internal successors, (5778), 4823 states have internal predecessors, (5778), 716 states have call successors, (716), 326 states have call predecessors, (716), 326 states have return successors, (716), 671 states have call predecessors, (716), 716 states have call successors, (716) [2022-07-19 17:46:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5821 states to 5821 states and 7210 transitions. [2022-07-19 17:46:14,163 INFO L78 Accepts]: Start accepts. Automaton has 5821 states and 7210 transitions. Word has length 372 [2022-07-19 17:46:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:46:14,163 INFO L495 AbstractCegarLoop]: Abstraction has 5821 states and 7210 transitions. [2022-07-19 17:46:14,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 7.017857142857143) internal successors, (393), 48 states have internal predecessors, (393), 17 states have call successors, (68), 13 states have call predecessors, (68), 19 states have return successors, (70), 21 states have call predecessors, (70), 17 states have call successors, (70) [2022-07-19 17:46:14,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5821 states and 7210 transitions. [2022-07-19 17:46:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-07-19 17:46:14,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:46:14,171 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:46:14,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-19 17:46:14,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-07-19 17:46:14,371 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:46:14,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:46:14,372 INFO L85 PathProgramCache]: Analyzing trace with hash 20866322, now seen corresponding path program 1 times [2022-07-19 17:46:14,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:46:14,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517448694] [2022-07-19 17:46:14,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:46:14,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:46:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:46:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:46:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:46:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:46:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:46:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:46:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:46:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:46:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:46:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:46:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:46:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:46:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:46:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:46:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:46:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:46:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:46:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-19 17:46:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-19 17:46:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-19 17:46:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-19 17:46:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-19 17:46:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-19 17:46:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-19 17:46:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-19 17:46:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-19 17:46:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-19 17:46:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-19 17:46:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-07-19 17:46:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-19 17:46:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-19 17:46:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-07-19 17:46:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-19 17:46:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1074 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2022-07-19 17:46:14,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:46:14,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517448694] [2022-07-19 17:46:14,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517448694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:46:14,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:46:14,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:46:14,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950728827] [2022-07-19 17:46:14,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:46:14,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:46:14,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:46:14,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:46:14,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:46:14,465 INFO L87 Difference]: Start difference. First operand 5821 states and 7210 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 17:46:15,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:46:15,181 INFO L93 Difference]: Finished difference Result 8440 states and 10469 transitions. [2022-07-19 17:46:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 17:46:15,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 383 [2022-07-19 17:46:15,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:46:15,187 INFO L225 Difference]: With dead ends: 8440 [2022-07-19 17:46:15,187 INFO L226 Difference]: Without dead ends: 3140 [2022-07-19 17:46:15,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:46:15,194 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 51 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:46:15,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 536 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:46:15,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2022-07-19 17:46:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2022-07-19 17:46:15,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 2588 states have (on average 1.1951313755795983) internal successors, (3093), 2612 states have internal predecessors, (3093), 377 states have call successors, (377), 174 states have call predecessors, (377), 174 states have return successors, (377), 353 states have call predecessors, (377), 377 states have call successors, (377) [2022-07-19 17:46:15,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 3847 transitions. [2022-07-19 17:46:15,728 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 3847 transitions. Word has length 383 [2022-07-19 17:46:15,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:46:15,728 INFO L495 AbstractCegarLoop]: Abstraction has 3140 states and 3847 transitions. [2022-07-19 17:46:15,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 17:46:15,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 3847 transitions. [2022-07-19 17:46:15,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-07-19 17:46:15,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:46:15,732 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:46:15,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-19 17:46:15,732 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:46:15,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:46:15,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1998056988, now seen corresponding path program 1 times [2022-07-19 17:46:15,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:46:15,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918257170] [2022-07-19 17:46:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:46:15,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:46:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:46:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:46:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:46:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:46:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:46:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:46:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:46:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:46:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:46:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:46:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:46:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:46:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:46:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:46:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:46:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:46:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:46:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:46:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-19 17:46:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-19 17:46:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-19 17:46:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-19 17:46:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-19 17:46:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-19 17:46:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-19 17:46:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-19 17:46:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-19 17:46:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-19 17:46:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-07-19 17:46:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-19 17:46:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-07-19 17:46:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-19 17:46:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-19 17:46:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 52 proven. 51 refuted. 0 times theorem prover too weak. 962 trivial. 0 not checked. [2022-07-19 17:46:15,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:46:15,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918257170] [2022-07-19 17:46:15,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918257170] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:46:15,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241606119] [2022-07-19 17:46:15,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:46:15,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:46:15,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:46:15,990 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:46:15,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-19 17:46:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:16,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 70 conjunts are in the unsatisfiable core [2022-07-19 17:46:16,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:46:17,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 549 proven. 249 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-07-19 17:46:17,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:46:18,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 157 proven. 154 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2022-07-19 17:46:18,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241606119] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:46:18,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:46:18,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 27, 21] total 56 [2022-07-19 17:46:18,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100672817] [2022-07-19 17:46:18,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:46:18,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-07-19 17:46:18,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:46:18,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-07-19 17:46:18,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=2859, Unknown=0, NotChecked=0, Total=3080 [2022-07-19 17:46:18,186 INFO L87 Difference]: Start difference. First operand 3140 states and 3847 transitions. Second operand has 56 states, 56 states have (on average 7.607142857142857) internal successors, (426), 47 states have internal predecessors, (426), 16 states have call successors, (69), 11 states have call predecessors, (69), 24 states have return successors, (74), 24 states have call predecessors, (74), 16 states have call successors, (74) [2022-07-19 17:46:35,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:46:35,568 INFO L93 Difference]: Finished difference Result 20571 states and 26815 transitions. [2022-07-19 17:46:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2022-07-19 17:46:35,569 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 7.607142857142857) internal successors, (426), 47 states have internal predecessors, (426), 16 states have call successors, (69), 11 states have call predecessors, (69), 24 states have return successors, (74), 24 states have call predecessors, (74), 16 states have call successors, (74) Word has length 383 [2022-07-19 17:46:35,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:46:35,603 INFO L225 Difference]: With dead ends: 20571 [2022-07-19 17:46:35,603 INFO L226 Difference]: Without dead ends: 17892 [2022-07-19 17:46:35,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 829 SyntacticMatches, 3 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13429 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=2847, Invalid=38973, Unknown=0, NotChecked=0, Total=41820 [2022-07-19 17:46:35,613 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 4737 mSDsluCounter, 14431 mSDsCounter, 0 mSdLazyCounter, 12608 mSolverCounterSat, 1922 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4764 SdHoareTripleChecker+Valid, 15076 SdHoareTripleChecker+Invalid, 15010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1922 IncrementalHoareTripleChecker+Valid, 12608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 480 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-19 17:46:35,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4764 Valid, 15076 Invalid, 15010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1922 Valid, 12608 Invalid, 0 Unknown, 480 Unchecked, 6.6s Time] [2022-07-19 17:46:35,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17892 states. [2022-07-19 17:46:36,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17892 to 4305. [2022-07-19 17:46:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 3498 states have (on average 1.195540308747856) internal successors, (4182), 3534 states have internal predecessors, (4182), 559 states have call successors, (559), 247 states have call predecessors, (559), 247 states have return successors, (559), 523 states have call predecessors, (559), 559 states have call successors, (559) [2022-07-19 17:46:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 5300 transitions. [2022-07-19 17:46:36,580 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 5300 transitions. Word has length 383 [2022-07-19 17:46:36,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:46:36,581 INFO L495 AbstractCegarLoop]: Abstraction has 4305 states and 5300 transitions. [2022-07-19 17:46:36,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 7.607142857142857) internal successors, (426), 47 states have internal predecessors, (426), 16 states have call successors, (69), 11 states have call predecessors, (69), 24 states have return successors, (74), 24 states have call predecessors, (74), 16 states have call successors, (74) [2022-07-19 17:46:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 5300 transitions. [2022-07-19 17:46:36,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-07-19 17:46:36,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:46:36,587 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:46:36,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-19 17:46:36,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-07-19 17:46:36,788 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:46:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:46:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1738384293, now seen corresponding path program 1 times [2022-07-19 17:46:36,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:46:36,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870322843] [2022-07-19 17:46:36,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:46:36,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:46:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:46:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:46:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:46:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:46:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 17:46:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 17:46:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 17:46:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 17:46:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 17:46:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:46:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:46:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-19 17:46:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-19 17:46:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 17:46:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:46:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 17:46:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-19 17:46:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-19 17:46:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-19 17:46:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-19 17:46:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-19 17:46:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-19 17:46:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-19 17:46:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-07-19 17:46:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-19 17:46:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-19 17:46:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-19 17:46:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-19 17:46:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-19 17:46:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-07-19 17:46:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-19 17:46:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-19 17:46:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-19 17:46:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-19 17:46:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-19 17:46:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-19 17:46:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 34 proven. 27 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2022-07-19 17:46:37,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:46:37,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870322843] [2022-07-19 17:46:37,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870322843] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:46:37,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867803737] [2022-07-19 17:46:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:46:37,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:46:37,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:46:37,126 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:46:37,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-19 17:46:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:46:37,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 32 conjunts are in the unsatisfiable core [2022-07-19 17:46:37,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:46:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 447 proven. 99 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2022-07-19 17:46:38,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:46:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 22 proven. 25 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2022-07-19 17:46:38,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867803737] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:46:38,438 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:46:38,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 14] total 42 [2022-07-19 17:46:38,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098788951] [2022-07-19 17:46:38,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:46:38,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-07-19 17:46:38,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:46:38,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-07-19 17:46:38,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1585, Unknown=0, NotChecked=0, Total=1722 [2022-07-19 17:46:38,440 INFO L87 Difference]: Start difference. First operand 4305 states and 5300 transitions. Second operand has 42 states, 42 states have (on average 9.69047619047619) internal successors, (407), 38 states have internal predecessors, (407), 15 states have call successors, (76), 7 states have call predecessors, (76), 9 states have return successors, (76), 18 states have call predecessors, (76), 15 states have call successors, (76)