/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:00:19,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:00:19,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:00:19,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:00:19,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:00:19,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:00:19,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:00:19,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:00:19,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:00:19,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:00:19,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:00:19,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:00:19,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:00:19,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:00:19,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:00:19,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:00:19,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:00:19,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:00:19,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:00:19,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:00:19,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:00:19,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:00:19,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:00:19,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:00:19,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:00:19,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:00:19,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:00:19,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:00:19,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:00:19,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:00:19,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:00:19,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:00:19,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:00:19,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:00:19,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:00:19,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:00:19,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:00:19,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:00:19,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:00:19,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:00:19,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:00:19,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 05:00:19,238 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:00:19,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:00:19,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:00:19,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:00:19,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:00:19,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:00:19,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:00:19,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:00:19,241 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:00:19,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:00:19,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:00:19,243 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:00:19,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:00:19,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:00:19,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:00:19,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:00:19,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:00:19,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:00:19,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:00:19,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:00:19,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:00:19,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:00:19,244 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:00:19,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:00:19,244 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:00:19,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:00:19,245 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:00:19,245 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:00:19,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:00:19,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:00:19,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:00:19,539 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:00:19,540 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:00:19,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-04-02 05:00:20,880 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:00:21,079 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:00:21,080 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-04-02 05:00:21,096 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2da17f2fb/162cd89134c84cdba50039d4be81ef47/FLAGb37eae756 [2023-04-02 05:00:21,126 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2da17f2fb/162cd89134c84cdba50039d4be81ef47 [2023-04-02 05:00:21,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:00:21,131 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:00:21,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:00:21,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:00:21,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:00:21,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4990344f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21, skipping insertion in model container [2023-04-02 05:00:21,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:00:21,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:00:21,535 WARN L247 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.ufo.UNBOUNDED.pals.c[12106,12119] [2023-04-02 05:00:21,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:00:21,547 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:00:21,622 WARN L247 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.ufo.UNBOUNDED.pals.c[12106,12119] [2023-04-02 05:00:21,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:00:21,632 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:00:21,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21 WrapperNode [2023-04-02 05:00:21,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:00:21,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:00:21,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:00:21,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:00:21,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,705 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:00:21,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:00:21,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:00:21,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:00:21,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (1/1) ... [2023-04-02 05:00:21,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:00:21,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:21,737 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) [2023-04-02 05:00:21,756 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 [2023-04-02 05:00:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:00:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:00:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:00:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:00:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_int8 [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure gate1_each_pals_period [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure gate2_each_pals_period [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure gate3_each_pals_period [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure voter [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:00:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:00:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_int8 [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure gate1_each_pals_period [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure gate2_each_pals_period [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure gate3_each_pals_period [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure voter [2023-04-02 05:00:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:00:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:00:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:00:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:00:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:00:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:00:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:00:21,972 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:00:21,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:00:22,375 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:00:22,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:00:22,392 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-02 05:00:22,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:00:22 BoogieIcfgContainer [2023-04-02 05:00:22,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:00:22,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:00:22,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:00:22,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:00:22,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:00:21" (1/3) ... [2023-04-02 05:00:22,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66eb940c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:00:22, skipping insertion in model container [2023-04-02 05:00:22,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:00:21" (2/3) ... [2023-04-02 05:00:22,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66eb940c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:00:22, skipping insertion in model container [2023-04-02 05:00:22,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:00:22" (3/3) ... [2023-04-02 05:00:22,400 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-04-02 05:00:22,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:00:22,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:00:22,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:00:22,453 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a461388, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:00:22,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:00:22,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 144 states have (on average 1.5486111111111112) internal successors, (223), 149 states have internal predecessors, (223), 46 states have call successors, (46), 15 states have call predecessors, (46), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 05:00:22,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-02 05:00:22,462 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:22,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:22,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:22,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:22,466 INFO L85 PathProgramCache]: Analyzing trace with hash 176585446, now seen corresponding path program 1 times [2023-04-02 05:00:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:22,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214334577] [2023-04-02 05:00:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:22,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:22,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:22,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214334577] [2023-04-02 05:00:22,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214334577] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:22,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:22,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:22,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586387523] [2023-04-02 05:00:22,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:22,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:22,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:22,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:22,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:22,854 INFO L87 Difference]: Start difference. First operand has 207 states, 144 states have (on average 1.5486111111111112) internal successors, (223), 149 states have internal predecessors, (223), 46 states have call successors, (46), 15 states have call predecessors, (46), 15 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:00:24,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:24,011 INFO L93 Difference]: Finished difference Result 412 states and 680 transitions. [2023-04-02 05:00:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:24,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-04-02 05:00:24,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:24,033 INFO L225 Difference]: With dead ends: 412 [2023-04-02 05:00:24,033 INFO L226 Difference]: Without dead ends: 214 [2023-04-02 05:00:24,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:24,046 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 202 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:24,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 269 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-04-02 05:00:24,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 208. [2023-04-02 05:00:24,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 146 states have (on average 1.5205479452054795) internal successors, (222), 150 states have internal predecessors, (222), 46 states have call successors, (46), 16 states have call predecessors, (46), 15 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-04-02 05:00:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 313 transitions. [2023-04-02 05:00:24,141 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 313 transitions. Word has length 21 [2023-04-02 05:00:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:24,141 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 313 transitions. [2023-04-02 05:00:24,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:00:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 313 transitions. [2023-04-02 05:00:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-02 05:00:24,144 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:24,144 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] [2023-04-02 05:00:24,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:00:24,144 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:24,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash -811300398, now seen corresponding path program 1 times [2023-04-02 05:00:24,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:24,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218284132] [2023-04-02 05:00:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:24,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:24,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:24,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218284132] [2023-04-02 05:00:24,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218284132] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:24,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:24,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:24,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035327580] [2023-04-02 05:00:24,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:24,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:24,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:24,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:24,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:24,316 INFO L87 Difference]: Start difference. First operand 208 states and 313 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:00:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:25,299 INFO L93 Difference]: Finished difference Result 427 states and 649 transitions. [2023-04-02 05:00:25,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:25,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-04-02 05:00:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:25,302 INFO L225 Difference]: With dead ends: 427 [2023-04-02 05:00:25,302 INFO L226 Difference]: Without dead ends: 228 [2023-04-02 05:00:25,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:25,304 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 210 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:25,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 269 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:25,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-04-02 05:00:25,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 221. [2023-04-02 05:00:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 157 states have (on average 1.5031847133757963) internal successors, (236), 161 states have internal predecessors, (236), 47 states have call successors, (47), 17 states have call predecessors, (47), 16 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 05:00:25,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 329 transitions. [2023-04-02 05:00:25,336 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 329 transitions. Word has length 22 [2023-04-02 05:00:25,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:25,336 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 329 transitions. [2023-04-02 05:00:25,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:00:25,336 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 329 transitions. [2023-04-02 05:00:25,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-04-02 05:00:25,338 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:25,338 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 05:00:25,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:00:25,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:25,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1051479533, now seen corresponding path program 1 times [2023-04-02 05:00:25,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:25,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199034140] [2023-04-02 05:00:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:25,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:25,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:25,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:25,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199034140] [2023-04-02 05:00:25,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199034140] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:25,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:25,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 05:00:25,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519967280] [2023-04-02 05:00:25,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:25,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:25,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:25,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:25,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:00:25,437 INFO L87 Difference]: Start difference. First operand 221 states and 329 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-02 05:00:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:26,149 INFO L93 Difference]: Finished difference Result 459 states and 695 transitions. [2023-04-02 05:00:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:00:26,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-04-02 05:00:26,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:26,152 INFO L225 Difference]: With dead ends: 459 [2023-04-02 05:00:26,152 INFO L226 Difference]: Without dead ends: 254 [2023-04-02 05:00:26,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:26,154 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 221 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:26,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 184 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:26,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-04-02 05:00:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 223. [2023-04-02 05:00:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 159 states have (on average 1.4968553459119496) internal successors, (238), 163 states have internal predecessors, (238), 47 states have call successors, (47), 17 states have call predecessors, (47), 16 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 05:00:26,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 331 transitions. [2023-04-02 05:00:26,186 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 331 transitions. Word has length 30 [2023-04-02 05:00:26,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:26,186 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 331 transitions. [2023-04-02 05:00:26,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-02 05:00:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 331 transitions. [2023-04-02 05:00:26,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-04-02 05:00:26,187 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:26,187 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:26,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:00:26,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:26,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:26,188 INFO L85 PathProgramCache]: Analyzing trace with hash -167964388, now seen corresponding path program 1 times [2023-04-02 05:00:26,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:26,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679834483] [2023-04-02 05:00:26,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:26,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:26,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:26,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679834483] [2023-04-02 05:00:26,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679834483] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:26,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:26,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:26,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994560121] [2023-04-02 05:00:26,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:26,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:26,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:26,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:26,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:26,308 INFO L87 Difference]: Start difference. First operand 223 states and 331 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:27,514 INFO L93 Difference]: Finished difference Result 436 states and 653 transitions. [2023-04-02 05:00:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:27,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-04-02 05:00:27,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:27,517 INFO L225 Difference]: With dead ends: 436 [2023-04-02 05:00:27,517 INFO L226 Difference]: Without dead ends: 235 [2023-04-02 05:00:27,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:27,518 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 182 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:27,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 354 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:00:27,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-04-02 05:00:27,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 227. [2023-04-02 05:00:27,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 162 states have (on average 1.4876543209876543) internal successors, (241), 166 states have internal predecessors, (241), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 46 states have call successors, (47) [2023-04-02 05:00:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 335 transitions. [2023-04-02 05:00:27,555 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 335 transitions. Word has length 38 [2023-04-02 05:00:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:27,556 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 335 transitions. [2023-04-02 05:00:27,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:27,557 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 335 transitions. [2023-04-02 05:00:27,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-04-02 05:00:27,565 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:27,565 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:27,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:00:27,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:27,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:27,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1498863891, now seen corresponding path program 1 times [2023-04-02 05:00:27,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:27,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705697420] [2023-04-02 05:00:27,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:27,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:27,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:27,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:27,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:27,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:27,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705697420] [2023-04-02 05:00:27,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705697420] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:27,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259260946] [2023-04-02 05:00:27,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:27,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:27,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:27,756 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) [2023-04-02 05:00:27,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 05:00:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:27,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 05:00:27,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:28,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:00:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:28,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259260946] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:00:28,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:00:28,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 6 [2023-04-02 05:00:28,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749692893] [2023-04-02 05:00:28,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:00:28,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:28,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:28,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:28,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:28,114 INFO L87 Difference]: Start difference. First operand 227 states and 335 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-02 05:00:29,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:29,208 INFO L93 Difference]: Finished difference Result 500 states and 758 transitions. [2023-04-02 05:00:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:29,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2023-04-02 05:00:29,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:29,211 INFO L225 Difference]: With dead ends: 500 [2023-04-02 05:00:29,211 INFO L226 Difference]: Without dead ends: 294 [2023-04-02 05:00:29,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:29,212 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 275 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:29,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 354 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:29,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-04-02 05:00:29,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 280. [2023-04-02 05:00:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 205 states have (on average 1.473170731707317) internal successors, (302), 209 states have internal predecessors, (302), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (57), 57 states have call predecessors, (57), 56 states have call successors, (57) [2023-04-02 05:00:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 416 transitions. [2023-04-02 05:00:29,282 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 416 transitions. Word has length 41 [2023-04-02 05:00:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:29,282 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 416 transitions. [2023-04-02 05:00:29,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-02 05:00:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 416 transitions. [2023-04-02 05:00:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-02 05:00:29,285 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:29,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:29,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:29,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:29,491 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:29,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:29,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1643706338, now seen corresponding path program 1 times [2023-04-02 05:00:29,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:29,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752894375] [2023-04-02 05:00:29,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:29,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:00:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:29,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:29,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752894375] [2023-04-02 05:00:29,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752894375] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:29,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:29,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:00:29,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023054301] [2023-04-02 05:00:29,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:29,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:00:29,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:29,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:00:29,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:29,678 INFO L87 Difference]: Start difference. First operand 280 states and 416 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-02 05:00:30,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:30,601 INFO L93 Difference]: Finished difference Result 450 states and 673 transitions. [2023-04-02 05:00:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:00:30,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-04-02 05:00:30,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:30,604 INFO L225 Difference]: With dead ends: 450 [2023-04-02 05:00:30,604 INFO L226 Difference]: Without dead ends: 280 [2023-04-02 05:00:30,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:30,606 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 182 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:30,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 495 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-04-02 05:00:30,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 276. [2023-04-02 05:00:30,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 202 states have (on average 1.4455445544554455) internal successors, (292), 206 states have internal predecessors, (292), 57 states have call successors, (57), 17 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-04-02 05:00:30,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 405 transitions. [2023-04-02 05:00:30,709 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 405 transitions. Word has length 45 [2023-04-02 05:00:30,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:30,710 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 405 transitions. [2023-04-02 05:00:30,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-02 05:00:30,710 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 405 transitions. [2023-04-02 05:00:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 05:00:30,712 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:30,712 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, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:30,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:00:30,712 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:30,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:30,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1279182573, now seen corresponding path program 2 times [2023-04-02 05:00:30,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:30,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067724718] [2023-04-02 05:00:30,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:30,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,871 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-04-02 05:00:30,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:30,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067724718] [2023-04-02 05:00:30,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067724718] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:30,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:30,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:30,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367065988] [2023-04-02 05:00:30,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:30,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:30,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:30,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:30,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:30,872 INFO L87 Difference]: Start difference. First operand 276 states and 405 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:31,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:31,724 INFO L93 Difference]: Finished difference Result 530 states and 801 transitions. [2023-04-02 05:00:31,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:31,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2023-04-02 05:00:31,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:31,726 INFO L225 Difference]: With dead ends: 530 [2023-04-02 05:00:31,727 INFO L226 Difference]: Without dead ends: 289 [2023-04-02 05:00:31,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:31,729 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 197 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:31,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 269 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-04-02 05:00:31,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 283. [2023-04-02 05:00:31,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 208 states have (on average 1.4423076923076923) internal successors, (300), 212 states have internal predecessors, (300), 57 states have call successors, (57), 18 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-04-02 05:00:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 413 transitions. [2023-04-02 05:00:31,850 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 413 transitions. Word has length 63 [2023-04-02 05:00:31,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:31,851 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 413 transitions. [2023-04-02 05:00:31,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:31,852 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 413 transitions. [2023-04-02 05:00:31,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 05:00:31,853 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:31,853 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, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:31,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:00:31,853 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:31,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:31,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1977696004, now seen corresponding path program 1 times [2023-04-02 05:00:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:31,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462111896] [2023-04-02 05:00:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:31,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:31,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:31,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 05:00:32,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:32,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462111896] [2023-04-02 05:00:32,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462111896] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:32,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:32,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:32,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634765781] [2023-04-02 05:00:32,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:32,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:32,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:32,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:32,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:32,020 INFO L87 Difference]: Start difference. First operand 283 states and 413 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:32,822 INFO L93 Difference]: Finished difference Result 574 states and 852 transitions. [2023-04-02 05:00:32,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:32,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2023-04-02 05:00:32,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:32,824 INFO L225 Difference]: With dead ends: 574 [2023-04-02 05:00:32,824 INFO L226 Difference]: Without dead ends: 326 [2023-04-02 05:00:32,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:32,826 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 200 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:32,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 269 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:32,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-04-02 05:00:32,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 319. [2023-04-02 05:00:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 240 states have (on average 1.4041666666666666) internal successors, (337), 244 states have internal predecessors, (337), 60 states have call successors, (60), 19 states have call predecessors, (60), 18 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-04-02 05:00:32,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 456 transitions. [2023-04-02 05:00:32,904 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 456 transitions. Word has length 63 [2023-04-02 05:00:32,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:32,905 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 456 transitions. [2023-04-02 05:00:32,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:32,905 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 456 transitions. [2023-04-02 05:00:32,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-02 05:00:32,906 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:32,906 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, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:32,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:00:32,906 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:32,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:32,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1949760353, now seen corresponding path program 1 times [2023-04-02 05:00:32,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:32,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695723034] [2023-04-02 05:00:32,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:32,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,211 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-04-02 05:00:33,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:33,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695723034] [2023-04-02 05:00:33,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695723034] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:33,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:33,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998525597] [2023-04-02 05:00:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:33,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:33,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:33,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:33,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:33,213 INFO L87 Difference]: Start difference. First operand 319 states and 456 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:34,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:34,160 INFO L93 Difference]: Finished difference Result 585 states and 851 transitions. [2023-04-02 05:00:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:34,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2023-04-02 05:00:34,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:34,162 INFO L225 Difference]: With dead ends: 585 [2023-04-02 05:00:34,163 INFO L226 Difference]: Without dead ends: 325 [2023-04-02 05:00:34,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:34,164 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 173 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:34,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 354 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:34,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-04-02 05:00:34,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2023-04-02 05:00:34,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 240 states have (on average 1.3916666666666666) internal successors, (334), 244 states have internal predecessors, (334), 60 states have call successors, (60), 19 states have call predecessors, (60), 18 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-04-02 05:00:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 453 transitions. [2023-04-02 05:00:34,196 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 453 transitions. Word has length 81 [2023-04-02 05:00:34,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:34,197 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 453 transitions. [2023-04-02 05:00:34,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:34,197 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 453 transitions. [2023-04-02 05:00:34,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-04-02 05:00:34,199 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:34,200 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, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:34,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:00:34,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:34,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:34,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1542465688, now seen corresponding path program 1 times [2023-04-02 05:00:34,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:34,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217871474] [2023-04-02 05:00:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:34,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:34,368 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-04-02 05:00:34,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:34,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217871474] [2023-04-02 05:00:34,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217871474] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:34,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:34,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:34,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520562192] [2023-04-02 05:00:34,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:34,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:34,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:34,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:34,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:34,370 INFO L87 Difference]: Start difference. First operand 319 states and 453 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:35,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:35,334 INFO L93 Difference]: Finished difference Result 622 states and 907 transitions. [2023-04-02 05:00:35,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:35,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 110 [2023-04-02 05:00:35,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:35,345 INFO L225 Difference]: With dead ends: 622 [2023-04-02 05:00:35,345 INFO L226 Difference]: Without dead ends: 367 [2023-04-02 05:00:35,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:35,359 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 201 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:35,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 269 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:35,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-04-02 05:00:35,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 360. [2023-04-02 05:00:35,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 277 states have (on average 1.3574007220216606) internal successors, (376), 281 states have internal predecessors, (376), 63 states have call successors, (63), 20 states have call predecessors, (63), 19 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-04-02 05:00:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 501 transitions. [2023-04-02 05:00:35,415 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 501 transitions. Word has length 110 [2023-04-02 05:00:35,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:35,416 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 501 transitions. [2023-04-02 05:00:35,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:35,416 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 501 transitions. [2023-04-02 05:00:35,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-04-02 05:00:35,418 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:35,418 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, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:35,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:00:35,418 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:35,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1471853096, now seen corresponding path program 1 times [2023-04-02 05:00:35,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:35,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182860053] [2023-04-02 05:00:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-04-02 05:00:35,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:35,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182860053] [2023-04-02 05:00:35,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182860053] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:35,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:35,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:35,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770756512] [2023-04-02 05:00:35,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:35,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:35,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:35,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:35,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:35,618 INFO L87 Difference]: Start difference. First operand 360 states and 501 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:36,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:36,549 INFO L93 Difference]: Finished difference Result 648 states and 928 transitions. [2023-04-02 05:00:36,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:36,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 111 [2023-04-02 05:00:36,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:36,554 INFO L225 Difference]: With dead ends: 648 [2023-04-02 05:00:36,554 INFO L226 Difference]: Without dead ends: 358 [2023-04-02 05:00:36,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:00:36,556 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 184 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:36,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 269 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:36,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-04-02 05:00:36,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 354. [2023-04-02 05:00:36,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 272 states have (on average 1.338235294117647) internal successors, (364), 276 states have internal predecessors, (364), 62 states have call successors, (62), 20 states have call predecessors, (62), 19 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-04-02 05:00:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 487 transitions. [2023-04-02 05:00:36,600 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 487 transitions. Word has length 111 [2023-04-02 05:00:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:36,601 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 487 transitions. [2023-04-02 05:00:36,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:36,601 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 487 transitions. [2023-04-02 05:00:36,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 05:00:36,602 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:36,606 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, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:36,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:00:36,606 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:36,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:36,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1821184041, now seen corresponding path program 1 times [2023-04-02 05:00:36,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:36,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40835020] [2023-04-02 05:00:36,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:36,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 05:00:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-04-02 05:00:36,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:36,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40835020] [2023-04-02 05:00:36,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40835020] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:36,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:36,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:36,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449457805] [2023-04-02 05:00:36,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:36,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:36,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:36,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:36,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:36,778 INFO L87 Difference]: Start difference. First operand 354 states and 487 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-02 05:00:37,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:37,567 INFO L93 Difference]: Finished difference Result 623 states and 876 transitions. [2023-04-02 05:00:37,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:37,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 130 [2023-04-02 05:00:37,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:37,569 INFO L225 Difference]: With dead ends: 623 [2023-04-02 05:00:37,569 INFO L226 Difference]: Without dead ends: 360 [2023-04-02 05:00:37,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:37,570 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 170 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:37,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 354 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:00:37,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-04-02 05:00:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 354. [2023-04-02 05:00:37,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 272 states have (on average 1.3272058823529411) internal successors, (361), 276 states have internal predecessors, (361), 62 states have call successors, (62), 20 states have call predecessors, (62), 19 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-04-02 05:00:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 484 transitions. [2023-04-02 05:00:37,629 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 484 transitions. Word has length 130 [2023-04-02 05:00:37,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:37,629 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 484 transitions. [2023-04-02 05:00:37,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-02 05:00:37,630 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 484 transitions. [2023-04-02 05:00:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-04-02 05:00:37,647 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:37,647 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, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:37,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:00:37,647 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:37,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1218237282, now seen corresponding path program 1 times [2023-04-02 05:00:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:37,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886157957] [2023-04-02 05:00:37,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:37,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 05:00:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-04-02 05:00:37,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:37,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886157957] [2023-04-02 05:00:37,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886157957] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:37,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:37,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:37,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662117047] [2023-04-02 05:00:37,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:37,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:37,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:37,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:37,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:37,770 INFO L87 Difference]: Start difference. First operand 354 states and 484 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-02 05:00:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:38,415 INFO L93 Difference]: Finished difference Result 586 states and 837 transitions. [2023-04-02 05:00:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 163 [2023-04-02 05:00:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:38,418 INFO L225 Difference]: With dead ends: 586 [2023-04-02 05:00:38,418 INFO L226 Difference]: Without dead ends: 356 [2023-04-02 05:00:38,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:00:38,419 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 179 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:38,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 269 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:00:38,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-04-02 05:00:38,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 352. [2023-04-02 05:00:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 271 states have (on average 1.3247232472324724) internal successors, (359), 275 states have internal predecessors, (359), 61 states have call successors, (61), 20 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-04-02 05:00:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 480 transitions. [2023-04-02 05:00:38,451 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 480 transitions. Word has length 163 [2023-04-02 05:00:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:38,451 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 480 transitions. [2023-04-02 05:00:38,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-02 05:00:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 480 transitions. [2023-04-02 05:00:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-04-02 05:00:38,455 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:38,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:38,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:00:38,456 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:38,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash -389753766, now seen corresponding path program 1 times [2023-04-02 05:00:38,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:38,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559778602] [2023-04-02 05:00:38,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:38,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 05:00:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-04-02 05:00:38,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:38,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559778602] [2023-04-02 05:00:38,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559778602] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:38,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:38,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:38,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593820691] [2023-04-02 05:00:38,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:38,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:38,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:38,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:38,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:38,609 INFO L87 Difference]: Start difference. First operand 352 states and 480 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:00:39,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:39,564 INFO L93 Difference]: Finished difference Result 526 states and 732 transitions. [2023-04-02 05:00:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:39,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 186 [2023-04-02 05:00:39,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:39,568 INFO L225 Difference]: With dead ends: 526 [2023-04-02 05:00:39,568 INFO L226 Difference]: Without dead ends: 339 [2023-04-02 05:00:39,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:39,569 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 204 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:39,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 269 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-04-02 05:00:39,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 335. [2023-04-02 05:00:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 257 states have (on average 1.3151750972762646) internal successors, (338), 261 states have internal predecessors, (338), 58 states have call successors, (58), 20 states have call predecessors, (58), 19 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-04-02 05:00:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 453 transitions. [2023-04-02 05:00:39,623 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 453 transitions. Word has length 186 [2023-04-02 05:00:39,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:39,624 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 453 transitions. [2023-04-02 05:00:39,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:00:39,624 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 453 transitions. [2023-04-02 05:00:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-04-02 05:00:39,628 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:39,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:39,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:00:39,629 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:39,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1557908577, now seen corresponding path program 1 times [2023-04-02 05:00:39,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:39,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772522619] [2023-04-02 05:00:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:39,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-04-02 05:00:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-04-02 05:00:39,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:39,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772522619] [2023-04-02 05:00:39,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772522619] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:39,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:39,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:39,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635352976] [2023-04-02 05:00:39,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:39,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:39,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:39,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:39,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:39,904 INFO L87 Difference]: Start difference. First operand 335 states and 453 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:00:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:40,900 INFO L93 Difference]: Finished difference Result 509 states and 705 transitions. [2023-04-02 05:00:40,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:40,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 188 [2023-04-02 05:00:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:40,903 INFO L225 Difference]: With dead ends: 509 [2023-04-02 05:00:40,903 INFO L226 Difference]: Without dead ends: 320 [2023-04-02 05:00:40,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:40,904 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 193 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:40,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 269 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-04-02 05:00:40,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 316. [2023-04-02 05:00:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 241 states have (on average 1.3070539419087137) internal successors, (315), 245 states have internal predecessors, (315), 55 states have call successors, (55), 20 states have call predecessors, (55), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-04-02 05:00:40,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 424 transitions. [2023-04-02 05:00:40,962 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 424 transitions. Word has length 188 [2023-04-02 05:00:40,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:40,962 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 424 transitions. [2023-04-02 05:00:40,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 05:00:40,963 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 424 transitions. [2023-04-02 05:00:40,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-04-02 05:00:40,964 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:40,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:40,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:00:40,964 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:40,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:40,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1168866853, now seen corresponding path program 1 times [2023-04-02 05:00:40,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:40,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723641592] [2023-04-02 05:00:40,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:40,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 05:00:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,223 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-04-02 05:00:41,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:41,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723641592] [2023-04-02 05:00:41,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723641592] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:41,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:41,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:41,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658970925] [2023-04-02 05:00:41,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:41,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:41,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:41,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:41,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:41,224 INFO L87 Difference]: Start difference. First operand 316 states and 424 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:00:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:42,111 INFO L93 Difference]: Finished difference Result 489 states and 675 transitions. [2023-04-02 05:00:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:42,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 189 [2023-04-02 05:00:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:42,113 INFO L225 Difference]: With dead ends: 489 [2023-04-02 05:00:42,113 INFO L226 Difference]: Without dead ends: 320 [2023-04-02 05:00:42,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:42,114 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 165 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:42,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 354 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:42,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-04-02 05:00:42,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 316. [2023-04-02 05:00:42,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 241 states have (on average 1.2821576763485478) internal successors, (309), 245 states have internal predecessors, (309), 55 states have call successors, (55), 20 states have call predecessors, (55), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-04-02 05:00:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 418 transitions. [2023-04-02 05:00:42,144 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 418 transitions. Word has length 189 [2023-04-02 05:00:42,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:42,146 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 418 transitions. [2023-04-02 05:00:42,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 05:00:42,146 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 418 transitions. [2023-04-02 05:00:42,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-02 05:00:42,147 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:42,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:42,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:00:42,148 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:42,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:42,148 INFO L85 PathProgramCache]: Analyzing trace with hash -759235935, now seen corresponding path program 1 times [2023-04-02 05:00:42,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:42,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629787943] [2023-04-02 05:00:42,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:42,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-04-02 05:00:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-04-02 05:00:42,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:42,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629787943] [2023-04-02 05:00:42,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629787943] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:42,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486806910] [2023-04-02 05:00:42,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:42,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:42,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:42,387 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) [2023-04-02 05:00:42,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 05:00:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:42,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:00:42,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:42,610 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-04-02 05:00:42,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:00:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-04-02 05:00:42,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486806910] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:42,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-02 05:00:42,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 6 [2023-04-02 05:00:42,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678722803] [2023-04-02 05:00:42,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:42,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:42,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:42,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:42,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:42,738 INFO L87 Difference]: Start difference. First operand 316 states and 418 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:00:42,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:42,798 INFO L93 Difference]: Finished difference Result 506 states and 691 transitions. [2023-04-02 05:00:42,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:00:42,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 196 [2023-04-02 05:00:42,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:42,800 INFO L225 Difference]: With dead ends: 506 [2023-04-02 05:00:42,800 INFO L226 Difference]: Without dead ends: 295 [2023-04-02 05:00:42,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:42,801 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 30 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:42,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 553 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:42,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-04-02 05:00:42,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2023-04-02 05:00:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 227 states have internal predecessors, (284), 52 states have call successors, (52), 20 states have call predecessors, (52), 19 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-04-02 05:00:42,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 387 transitions. [2023-04-02 05:00:42,829 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 387 transitions. Word has length 196 [2023-04-02 05:00:42,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:42,830 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 387 transitions. [2023-04-02 05:00:42,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:00:42,830 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 387 transitions. [2023-04-02 05:00:42,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-04-02 05:00:42,831 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:42,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:42,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:43,038 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 [2023-04-02 05:00:43,039 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:43,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:43,039 INFO L85 PathProgramCache]: Analyzing trace with hash 780251732, now seen corresponding path program 1 times [2023-04-02 05:00:43,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:43,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067163806] [2023-04-02 05:00:43,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:43,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-02 05:00:43,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:43,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067163806] [2023-04-02 05:00:43,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067163806] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:43,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:43,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:43,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106933381] [2023-04-02 05:00:43,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:43,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:43,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:43,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:43,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:43,221 INFO L87 Difference]: Start difference. First operand 295 states and 387 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-04-02 05:00:44,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:44,216 INFO L93 Difference]: Finished difference Result 465 states and 636 transitions. [2023-04-02 05:00:44,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:00:44,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 220 [2023-04-02 05:00:44,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:44,220 INFO L225 Difference]: With dead ends: 465 [2023-04-02 05:00:44,220 INFO L226 Difference]: Without dead ends: 305 [2023-04-02 05:00:44,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:44,222 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 168 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:44,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 262 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-04-02 05:00:44,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 299. [2023-04-02 05:00:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 226 states have (on average 1.2699115044247788) internal successors, (287), 230 states have internal predecessors, (287), 52 states have call successors, (52), 21 states have call predecessors, (52), 20 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-04-02 05:00:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 390 transitions. [2023-04-02 05:00:44,266 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 390 transitions. Word has length 220 [2023-04-02 05:00:44,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:44,268 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 390 transitions. [2023-04-02 05:00:44,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-04-02 05:00:44,269 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 390 transitions. [2023-04-02 05:00:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-04-02 05:00:44,272 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:44,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:44,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 05:00:44,272 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:44,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:44,273 INFO L85 PathProgramCache]: Analyzing trace with hash 726773504, now seen corresponding path program 1 times [2023-04-02 05:00:44,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:44,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070415273] [2023-04-02 05:00:44,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:44,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,497 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-02 05:00:44,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:44,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070415273] [2023-04-02 05:00:44,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070415273] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:44,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217879736] [2023-04-02 05:00:44,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:44,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:44,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:44,508 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) [2023-04-02 05:00:44,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 05:00:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:00:44,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-02 05:00:44,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:00:44,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217879736] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:44,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:00:44,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2023-04-02 05:00:44,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520015969] [2023-04-02 05:00:44,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:44,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:44,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:44,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:44,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:00:44,730 INFO L87 Difference]: Start difference. First operand 299 states and 390 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-04-02 05:00:44,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:44,783 INFO L93 Difference]: Finished difference Result 470 states and 638 transitions. [2023-04-02 05:00:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:44,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 230 [2023-04-02 05:00:44,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:44,785 INFO L225 Difference]: With dead ends: 470 [2023-04-02 05:00:44,785 INFO L226 Difference]: Without dead ends: 306 [2023-04-02 05:00:44,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:44,786 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 7 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 856 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 [2023-04-02 05:00:44,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 856 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:44,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-04-02 05:00:44,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 304. [2023-04-02 05:00:44,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 230 states have (on average 1.2652173913043478) internal successors, (291), 234 states have internal predecessors, (291), 52 states have call successors, (52), 22 states have call predecessors, (52), 21 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-04-02 05:00:44,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 394 transitions. [2023-04-02 05:00:44,813 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 394 transitions. Word has length 230 [2023-04-02 05:00:44,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:44,814 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 394 transitions. [2023-04-02 05:00:44,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-04-02 05:00:44,814 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 394 transitions. [2023-04-02 05:00:44,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-04-02 05:00:44,815 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:44,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:44,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:45,021 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 [2023-04-02 05:00:45,022 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:45,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1593855937, now seen corresponding path program 1 times [2023-04-02 05:00:45,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:45,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333589060] [2023-04-02 05:00:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:00:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,270 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-04-02 05:00:45,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:45,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333589060] [2023-04-02 05:00:45,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333589060] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:45,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212884150] [2023-04-02 05:00:45,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:45,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:45,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:45,295 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) [2023-04-02 05:00:45,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 05:00:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:00:45,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-04-02 05:00:45,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:00:45,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212884150] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:45,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:00:45,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2023-04-02 05:00:45,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927152090] [2023-04-02 05:00:45,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:45,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:45,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:45,512 INFO L87 Difference]: Start difference. First operand 304 states and 394 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-04-02 05:00:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:45,563 INFO L93 Difference]: Finished difference Result 472 states and 636 transitions. [2023-04-02 05:00:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:00:45,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 241 [2023-04-02 05:00:45,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:45,565 INFO L225 Difference]: With dead ends: 472 [2023-04-02 05:00:45,565 INFO L226 Difference]: Without dead ends: 303 [2023-04-02 05:00:45,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:45,566 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 7 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 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 [2023-04-02 05:00:45,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:45,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-04-02 05:00:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2023-04-02 05:00:45,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 230 states have (on average 1.2521739130434784) internal successors, (288), 233 states have internal predecessors, (288), 51 states have call successors, (51), 22 states have call predecessors, (51), 21 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-04-02 05:00:45,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 389 transitions. [2023-04-02 05:00:45,630 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 389 transitions. Word has length 241 [2023-04-02 05:00:45,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:45,631 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 389 transitions. [2023-04-02 05:00:45,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-04-02 05:00:45,631 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 389 transitions. [2023-04-02 05:00:45,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-04-02 05:00:45,632 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:45,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:45,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-04-02 05:00:45,839 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 [2023-04-02 05:00:45,840 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:45,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1164635866, now seen corresponding path program 1 times [2023-04-02 05:00:45,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:45,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794457221] [2023-04-02 05:00:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:45,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:45,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:00:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:00:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-04-02 05:00:46,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:46,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794457221] [2023-04-02 05:00:46,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794457221] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:46,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:46,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:00:46,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414881908] [2023-04-02 05:00:46,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:46,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:00:46,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:46,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:00:46,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:46,127 INFO L87 Difference]: Start difference. First operand 303 states and 389 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-04-02 05:00:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:47,023 INFO L93 Difference]: Finished difference Result 470 states and 626 transitions. [2023-04-02 05:00:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:00:47,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 253 [2023-04-02 05:00:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:47,025 INFO L225 Difference]: With dead ends: 470 [2023-04-02 05:00:47,025 INFO L226 Difference]: Without dead ends: 302 [2023-04-02 05:00:47,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:00:47,026 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 791 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:47,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 217 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-04-02 05:00:47,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-04-02 05:00:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 230 states have (on average 1.2478260869565216) internal successors, (287), 232 states have internal predecessors, (287), 50 states have call successors, (50), 22 states have call predecessors, (50), 21 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-04-02 05:00:47,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 386 transitions. [2023-04-02 05:00:47,052 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 386 transitions. Word has length 253 [2023-04-02 05:00:47,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:47,054 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 386 transitions. [2023-04-02 05:00:47,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-04-02 05:00:47,054 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 386 transitions. [2023-04-02 05:00:47,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 05:00:47,055 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:47,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:47,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 05:00:47,055 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:47,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:47,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1402046120, now seen corresponding path program 1 times [2023-04-02 05:00:47,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:47,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223153329] [2023-04-02 05:00:47,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:47,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:00:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:00:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-04-02 05:00:47,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:47,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223153329] [2023-04-02 05:00:47,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223153329] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:47,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:47,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:00:47,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264261961] [2023-04-02 05:00:47,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:47,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:00:47,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:47,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:00:47,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:47,399 INFO L87 Difference]: Start difference. First operand 302 states and 386 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-04-02 05:00:48,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:48,996 INFO L93 Difference]: Finished difference Result 778 states and 1050 transitions. [2023-04-02 05:00:48,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 05:00:48,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 254 [2023-04-02 05:00:48,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:48,999 INFO L225 Difference]: With dead ends: 778 [2023-04-02 05:00:48,999 INFO L226 Difference]: Without dead ends: 611 [2023-04-02 05:00:49,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:00:49,000 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 1067 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:49,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 308 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 05:00:49,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-04-02 05:00:49,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 603. [2023-04-02 05:00:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 446 states have (on average 1.3094170403587444) internal successors, (584), 449 states have internal predecessors, (584), 105 states have call successors, (105), 50 states have call predecessors, (105), 51 states have return successors, (107), 104 states have call predecessors, (107), 104 states have call successors, (107) [2023-04-02 05:00:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 796 transitions. [2023-04-02 05:00:49,052 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 796 transitions. Word has length 254 [2023-04-02 05:00:49,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:49,052 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 796 transitions. [2023-04-02 05:00:49,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-04-02 05:00:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 796 transitions. [2023-04-02 05:00:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-04-02 05:00:49,054 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:49,054 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:49,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 05:00:49,055 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:49,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:49,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1577790359, now seen corresponding path program 1 times [2023-04-02 05:00:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688004678] [2023-04-02 05:00:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:49,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:49,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:00:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:00:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:00:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:00:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:00:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:00:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 05:00:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 05:00:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2023-04-02 05:00:49,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:49,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688004678] [2023-04-02 05:00:49,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688004678] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:49,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:49,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:00:49,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913767604] [2023-04-02 05:00:49,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:49,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:00:49,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:49,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:00:49,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:00:49,354 INFO L87 Difference]: Start difference. First operand 603 states and 796 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 05:00:51,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:51,649 INFO L93 Difference]: Finished difference Result 1670 states and 2260 transitions. [2023-04-02 05:00:51,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 05:00:51,650 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 294 [2023-04-02 05:00:51,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:51,654 INFO L225 Difference]: With dead ends: 1670 [2023-04-02 05:00:51,654 INFO L226 Difference]: Without dead ends: 1050 [2023-04-02 05:00:51,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=233, Invalid=523, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:00:51,656 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1885 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1914 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:51,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1914 Valid, 117 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:00:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2023-04-02 05:00:51,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1021. [2023-04-02 05:00:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 749 states have (on average 1.3110814419225634) internal successors, (982), 757 states have internal predecessors, (982), 178 states have call successors, (178), 87 states have call predecessors, (178), 93 states have return successors, (190), 177 states have call predecessors, (190), 177 states have call successors, (190) [2023-04-02 05:00:51,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1350 transitions. [2023-04-02 05:00:51,752 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1350 transitions. Word has length 294 [2023-04-02 05:00:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:51,752 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1350 transitions. [2023-04-02 05:00:51,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (26), 9 states have call predecessors, (26), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 05:00:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1350 transitions. [2023-04-02 05:00:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-04-02 05:00:51,755 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:51,755 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:51,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 05:00:51,755 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:51,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:51,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1734021507, now seen corresponding path program 1 times [2023-04-02 05:00:51,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:51,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769830803] [2023-04-02 05:00:51,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:51,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:00:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:00:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:00:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:00:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2023-04-02 05:00:52,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:52,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769830803] [2023-04-02 05:00:52,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769830803] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:52,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799039293] [2023-04-02 05:00:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:52,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:52,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:52,059 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) [2023-04-02 05:00:52,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 05:00:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 05:00:52,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2023-04-02 05:00:52,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:00:52,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799039293] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:52,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:00:52,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-04-02 05:00:52,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584717809] [2023-04-02 05:00:52,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:52,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:52,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:52,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:52,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:00:52,314 INFO L87 Difference]: Start difference. First operand 1021 states and 1350 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-02 05:00:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:52,475 INFO L93 Difference]: Finished difference Result 1931 states and 2596 transitions. [2023-04-02 05:00:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 296 [2023-04-02 05:00:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:52,480 INFO L225 Difference]: With dead ends: 1931 [2023-04-02 05:00:52,480 INFO L226 Difference]: Without dead ends: 1057 [2023-04-02 05:00:52,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:00:52,508 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 15 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 767 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 [2023-04-02 05:00:52,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 767 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:52,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2023-04-02 05:00:52,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1057. [2023-04-02 05:00:52,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 779 states have (on average 1.3145057766367136) internal successors, (1024), 787 states have internal predecessors, (1024), 178 states have call successors, (178), 93 states have call predecessors, (178), 99 states have return successors, (190), 177 states have call predecessors, (190), 177 states have call successors, (190) [2023-04-02 05:00:52,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1392 transitions. [2023-04-02 05:00:52,639 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1392 transitions. Word has length 296 [2023-04-02 05:00:52,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:52,639 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1392 transitions. [2023-04-02 05:00:52,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-02 05:00:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1392 transitions. [2023-04-02 05:00:52,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-04-02 05:00:52,641 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:52,642 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:52,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:52,849 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,SelfDestructingSolverStorable23 [2023-04-02 05:00:52,850 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:52,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1698172905, now seen corresponding path program 1 times [2023-04-02 05:00:52,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:52,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983022566] [2023-04-02 05:00:52,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:00:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:00:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:00:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:00:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:00:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-04-02 05:00:53,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:53,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983022566] [2023-04-02 05:00:53,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983022566] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:53,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:53,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:00:53,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068471822] [2023-04-02 05:00:53,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:53,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:00:53,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:53,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:00:53,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:53,157 INFO L87 Difference]: Start difference. First operand 1057 states and 1392 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (26), 9 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 05:00:55,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:55,274 INFO L93 Difference]: Finished difference Result 2840 states and 3812 transitions. [2023-04-02 05:00:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:00:55,282 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (26), 9 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 297 [2023-04-02 05:00:55,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:55,295 INFO L225 Difference]: With dead ends: 2840 [2023-04-02 05:00:55,295 INFO L226 Difference]: Without dead ends: 1918 [2023-04-02 05:00:55,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:00:55,300 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1658 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:55,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 88 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:00:55,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2023-04-02 05:00:55,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1900. [2023-04-02 05:00:55,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1390 states have (on average 1.3258992805755396) internal successors, (1843), 1412 states have internal predecessors, (1843), 321 states have call successors, (321), 168 states have call predecessors, (321), 188 states have return successors, (353), 319 states have call predecessors, (353), 320 states have call successors, (353) [2023-04-02 05:00:55,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2517 transitions. [2023-04-02 05:00:55,606 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2517 transitions. Word has length 297 [2023-04-02 05:00:55,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:55,606 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2517 transitions. [2023-04-02 05:00:55,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (26), 9 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 05:00:55,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2517 transitions. [2023-04-02 05:00:55,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-04-02 05:00:55,611 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:55,612 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:55,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 05:00:55,613 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:55,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:55,613 INFO L85 PathProgramCache]: Analyzing trace with hash -2135922880, now seen corresponding path program 1 times [2023-04-02 05:00:55,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:55,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285968342] [2023-04-02 05:00:55,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:55,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:00:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:00:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-04-02 05:00:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-04-02 05:00:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:00:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:00:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:00:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2023-04-02 05:00:56,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:56,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285968342] [2023-04-02 05:00:56,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285968342] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:56,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:56,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:00:56,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021230624] [2023-04-02 05:00:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:56,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:00:56,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:56,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:00:56,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:56,140 INFO L87 Difference]: Start difference. First operand 1900 states and 2517 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (27), 9 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 05:00:58,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:58,405 INFO L93 Difference]: Finished difference Result 3679 states and 4910 transitions. [2023-04-02 05:00:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 05:00:58,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (27), 9 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 305 [2023-04-02 05:00:58,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:58,441 INFO L225 Difference]: With dead ends: 3679 [2023-04-02 05:00:58,442 INFO L226 Difference]: Without dead ends: 1960 [2023-04-02 05:00:58,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2023-04-02 05:00:58,447 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 1042 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:58,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 84 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:00:58,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2023-04-02 05:00:58,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1904. [2023-04-02 05:00:58,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1393 states have (on average 1.3208901651112706) internal successors, (1840), 1415 states have internal predecessors, (1840), 321 states have call successors, (321), 169 states have call predecessors, (321), 189 states have return successors, (345), 319 states have call predecessors, (345), 320 states have call successors, (345) [2023-04-02 05:00:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2506 transitions. [2023-04-02 05:00:58,754 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2506 transitions. Word has length 305 [2023-04-02 05:00:58,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:58,755 INFO L495 AbstractCegarLoop]: Abstraction has 1904 states and 2506 transitions. [2023-04-02 05:00:58,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (27), 9 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 05:00:58,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2506 transitions. [2023-04-02 05:00:58,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-04-02 05:00:58,759 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:58,760 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:58,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 05:00:58,760 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:58,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:58,761 INFO L85 PathProgramCache]: Analyzing trace with hash -321935166, now seen corresponding path program 1 times [2023-04-02 05:00:58,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:58,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987781259] [2023-04-02 05:00:58,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:58,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:00:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:00:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:58,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:00:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:00:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:00:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:00:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:00:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:00:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:00:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-04-02 05:00:59,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:59,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987781259] [2023-04-02 05:00:59,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987781259] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:59,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:59,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:00:59,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977703467] [2023-04-02 05:00:59,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:59,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:00:59,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:59,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:00:59,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:59,101 INFO L87 Difference]: Start difference. First operand 1904 states and 2506 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (26), 9 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 05:01:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:02,029 INFO L93 Difference]: Finished difference Result 5238 states and 6996 transitions. [2023-04-02 05:01:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 05:01:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (26), 9 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 298 [2023-04-02 05:01:02,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:02,042 INFO L225 Difference]: With dead ends: 5238 [2023-04-02 05:01:02,042 INFO L226 Difference]: Without dead ends: 3519 [2023-04-02 05:01:02,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-04-02 05:01:02,046 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 1551 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 2290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 1715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:02,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 123 Invalid, 2290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 05:01:02,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3519 states. [2023-04-02 05:01:02,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3519 to 3485. [2023-04-02 05:01:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3485 states, 2536 states have (on average 1.3304416403785488) internal successors, (3374), 2592 states have internal predecessors, (3374), 589 states have call successors, (589), 305 states have call predecessors, (589), 359 states have return successors, (651), 587 states have call predecessors, (651), 588 states have call successors, (651) [2023-04-02 05:01:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3485 states to 3485 states and 4614 transitions. [2023-04-02 05:01:02,446 INFO L78 Accepts]: Start accepts. Automaton has 3485 states and 4614 transitions. Word has length 298 [2023-04-02 05:01:02,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:02,446 INFO L495 AbstractCegarLoop]: Abstraction has 3485 states and 4614 transitions. [2023-04-02 05:01:02,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (26), 9 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 05:01:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3485 states and 4614 transitions. [2023-04-02 05:01:02,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-04-02 05:01:02,452 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:02,452 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:02,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 05:01:02,452 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:02,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:02,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1693742464, now seen corresponding path program 1 times [2023-04-02 05:01:02,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:02,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530095831] [2023-04-02 05:01:02,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:02,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:03,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:03,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:03,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:01:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:03,025 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-04-02 05:01:03,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:03,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530095831] [2023-04-02 05:01:03,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530095831] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:03,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:03,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:01:03,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234895204] [2023-04-02 05:01:03,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:03,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:01:03,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:03,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:01:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:01:03,027 INFO L87 Difference]: Start difference. First operand 3485 states and 4614 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (26), 9 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-04-02 05:01:05,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:05,294 INFO L93 Difference]: Finished difference Result 3735 states and 5043 transitions. [2023-04-02 05:01:05,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:01:05,294 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (26), 9 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 298 [2023-04-02 05:01:05,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:05,307 INFO L225 Difference]: With dead ends: 3735 [2023-04-02 05:01:05,308 INFO L226 Difference]: Without dead ends: 3733 [2023-04-02 05:01:05,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:01:05,309 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 733 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:05,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 170 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 05:01:05,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3733 states. [2023-04-02 05:01:05,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3733 to 3605. [2023-04-02 05:01:05,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 2608 states have (on average 1.321319018404908) internal successors, (3446), 2688 states have internal predecessors, (3446), 601 states have call successors, (601), 317 states have call predecessors, (601), 395 states have return successors, (695), 599 states have call predecessors, (695), 600 states have call successors, (695) [2023-04-02 05:01:05,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 4742 transitions. [2023-04-02 05:01:05,872 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 4742 transitions. Word has length 298 [2023-04-02 05:01:05,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:05,872 INFO L495 AbstractCegarLoop]: Abstraction has 3605 states and 4742 transitions. [2023-04-02 05:01:05,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (26), 9 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-04-02 05:01:05,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 4742 transitions. [2023-04-02 05:01:05,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-04-02 05:01:05,878 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:05,879 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:05,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 05:01:05,879 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:05,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:05,879 INFO L85 PathProgramCache]: Analyzing trace with hash -746979320, now seen corresponding path program 1 times [2023-04-02 05:01:05,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:05,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941117771] [2023-04-02 05:01:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:05,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:01:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 142 proven. 27 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-04-02 05:01:06,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941117771] [2023-04-02 05:01:06,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941117771] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636765268] [2023-04-02 05:01:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:06,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:06,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:06,585 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) [2023-04-02 05:01:06,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 05:01:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:06,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:01:06,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:07,093 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 251 proven. 37 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-04-02 05:01:07,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:01:07,841 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 146 proven. 23 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-04-02 05:01:07,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636765268] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:01:07,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:01:07,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 14] total 36 [2023-04-02 05:01:07,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384555625] [2023-04-02 05:01:07,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:01:07,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-02 05:01:07,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:07,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-02 05:01:07,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1137, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 05:01:07,844 INFO L87 Difference]: Start difference. First operand 3605 states and 4742 transitions. Second operand has 36 states, 36 states have (on average 5.666666666666667) internal successors, (204), 23 states have internal predecessors, (204), 9 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (47), 14 states have call predecessors, (47), 9 states have call successors, (47) [2023-04-02 05:01:15,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:15,982 INFO L93 Difference]: Finished difference Result 14829 states and 21272 transitions. [2023-04-02 05:01:15,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-04-02 05:01:15,983 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.666666666666667) internal successors, (204), 23 states have internal predecessors, (204), 9 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (47), 14 states have call predecessors, (47), 9 states have call successors, (47) Word has length 306 [2023-04-02 05:01:15,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:16,018 INFO L225 Difference]: With dead ends: 14829 [2023-04-02 05:01:16,018 INFO L226 Difference]: Without dead ends: 11453 [2023-04-02 05:01:16,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 667 SyntacticMatches, 4 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1753 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1071, Invalid=5735, Unknown=0, NotChecked=0, Total=6806 [2023-04-02 05:01:16,027 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2138 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 9121 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 9853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 9121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:16,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 334 Invalid, 9853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 9121 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-04-02 05:01:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2023-04-02 05:01:17,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 9421. [2023-04-02 05:01:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9421 states, 6800 states have (on average 1.3195588235294118) internal successors, (8973), 7072 states have internal predecessors, (8973), 1529 states have call successors, (1529), 771 states have call predecessors, (1529), 1091 states have return successors, (1979), 1577 states have call predecessors, (1979), 1528 states have call successors, (1979) [2023-04-02 05:01:17,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9421 states to 9421 states and 12481 transitions. [2023-04-02 05:01:17,141 INFO L78 Accepts]: Start accepts. Automaton has 9421 states and 12481 transitions. Word has length 306 [2023-04-02 05:01:17,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:17,141 INFO L495 AbstractCegarLoop]: Abstraction has 9421 states and 12481 transitions. [2023-04-02 05:01:17,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.666666666666667) internal successors, (204), 23 states have internal predecessors, (204), 9 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (47), 14 states have call predecessors, (47), 9 states have call successors, (47) [2023-04-02 05:01:17,141 INFO L276 IsEmpty]: Start isEmpty. Operand 9421 states and 12481 transitions. [2023-04-02 05:01:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-04-02 05:01:17,152 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:17,152 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:17,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:17,370 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,SelfDestructingSolverStorable28 [2023-04-02 05:01:17,371 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:17,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:17,371 INFO L85 PathProgramCache]: Analyzing trace with hash -53877623, now seen corresponding path program 1 times [2023-04-02 05:01:17,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:17,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357011684] [2023-04-02 05:01:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:17,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:01:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-04-02 05:01:17,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:17,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357011684] [2023-04-02 05:01:17,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357011684] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:17,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946782269] [2023-04-02 05:01:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:17,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:17,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:17,734 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) [2023-04-02 05:01:17,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-02 05:01:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:01:17,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2023-04-02 05:01:17,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:17,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946782269] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:17,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:17,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-04-02 05:01:17,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603289894] [2023-04-02 05:01:17,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:17,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:01:17,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:17,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:01:17,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:01:17,976 INFO L87 Difference]: Start difference. First operand 9421 states and 12481 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, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 05:01:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:18,965 INFO L93 Difference]: Finished difference Result 17248 states and 23209 transitions. [2023-04-02 05:01:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:01:18,966 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, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 306 [2023-04-02 05:01:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:18,997 INFO L225 Difference]: With dead ends: 17248 [2023-04-02 05:01:18,997 INFO L226 Difference]: Without dead ends: 7861 [2023-04-02 05:01:19,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:01:19,016 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 11 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 767 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 [2023-04-02 05:01:19,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 767 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:01:19,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2023-04-02 05:01:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7861. [2023-04-02 05:01:19,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7861 states, 5744 states have (on average 1.2818593314763231) internal successors, (7363), 5968 states have internal predecessors, (7363), 1133 states have call successors, (1133), 759 states have call predecessors, (1133), 983 states have return successors, (1471), 1133 states have call predecessors, (1471), 1132 states have call successors, (1471) [2023-04-02 05:01:19,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7861 states to 7861 states and 9967 transitions. [2023-04-02 05:01:19,979 INFO L78 Accepts]: Start accepts. Automaton has 7861 states and 9967 transitions. Word has length 306 [2023-04-02 05:01:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:19,980 INFO L495 AbstractCegarLoop]: Abstraction has 7861 states and 9967 transitions. [2023-04-02 05:01:19,980 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, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 05:01:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 7861 states and 9967 transitions. [2023-04-02 05:01:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-04-02 05:01:19,988 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:19,988 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:20,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:20,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:20,196 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:20,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:20,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1060380947, now seen corresponding path program 1 times [2023-04-02 05:01:20,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:20,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377325701] [2023-04-02 05:01:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:01:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 05:01:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-04-02 05:01:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-04-02 05:01:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-04-02 05:01:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-04-02 05:01:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:01:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-04-02 05:01:20,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:20,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377325701] [2023-04-02 05:01:20,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377325701] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:20,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966547726] [2023-04-02 05:01:20,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:20,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:20,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:20,536 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) [2023-04-02 05:01:20,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-02 05:01:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:01:20,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2023-04-02 05:01:20,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:20,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966547726] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:20,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:20,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-04-02 05:01:20,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276329865] [2023-04-02 05:01:20,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:20,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:01:20,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:20,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:01:20,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:01:20,844 INFO L87 Difference]: Start difference. First operand 7861 states and 9967 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 05:01:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:22,063 INFO L93 Difference]: Finished difference Result 15636 states and 20364 transitions. [2023-04-02 05:01:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:01:22,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 309 [2023-04-02 05:01:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:22,119 INFO L225 Difference]: With dead ends: 15636 [2023-04-02 05:01:22,120 INFO L226 Difference]: Without dead ends: 7683 [2023-04-02 05:01:22,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:01:22,151 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 8 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 770 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 [2023-04-02 05:01:22,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 770 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:01:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7683 states. [2023-04-02 05:01:23,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7683 to 7683. [2023-04-02 05:01:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7683 states, 5594 states have (on average 1.2652842331069003) internal successors, (7078), 5814 states have internal predecessors, (7078), 1121 states have call successors, (1121), 749 states have call predecessors, (1121), 967 states have return successors, (1451), 1119 states have call predecessors, (1451), 1120 states have call successors, (1451) [2023-04-02 05:01:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7683 states to 7683 states and 9650 transitions. [2023-04-02 05:01:23,216 INFO L78 Accepts]: Start accepts. Automaton has 7683 states and 9650 transitions. Word has length 309 [2023-04-02 05:01:23,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:23,217 INFO L495 AbstractCegarLoop]: Abstraction has 7683 states and 9650 transitions. [2023-04-02 05:01:23,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 05:01:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7683 states and 9650 transitions. [2023-04-02 05:01:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-04-02 05:01:23,222 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:23,223 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:23,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:23,431 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,SelfDestructingSolverStorable30 [2023-04-02 05:01:23,431 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:23,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:23,432 INFO L85 PathProgramCache]: Analyzing trace with hash 407370895, now seen corresponding path program 1 times [2023-04-02 05:01:23,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:23,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970028857] [2023-04-02 05:01:23,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:23,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:01:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:01:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2023-04-02 05:01:23,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:23,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970028857] [2023-04-02 05:01:23,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970028857] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:23,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:23,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:01:23,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757761671] [2023-04-02 05:01:23,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:23,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:01:23,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:23,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:01:23,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:01:23,868 INFO L87 Difference]: Start difference. First operand 7683 states and 9650 transitions. Second operand has 17 states, 16 states have (on average 6.5625) internal successors, (105), 9 states have internal predecessors, (105), 4 states have call successors, (29), 9 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2023-04-02 05:01:27,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:27,978 INFO L93 Difference]: Finished difference Result 18827 states and 23679 transitions. [2023-04-02 05:01:27,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-04-02 05:01:27,979 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 9 states have internal predecessors, (105), 4 states have call successors, (29), 9 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 321 [2023-04-02 05:01:27,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:28,069 INFO L225 Difference]: With dead ends: 18827 [2023-04-02 05:01:28,069 INFO L226 Difference]: Without dead ends: 13163 [2023-04-02 05:01:28,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=365, Invalid=1441, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 05:01:28,114 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1225 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 3770 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 4181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 3770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:28,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 205 Invalid, 4181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 3770 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 05:01:28,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13163 states. [2023-04-02 05:01:29,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13163 to 10775. [2023-04-02 05:01:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10775 states, 7854 states have (on average 1.2612681436210849) internal successors, (9906), 8194 states have internal predecessors, (9906), 1573 states have call successors, (1573), 1009 states have call predecessors, (1573), 1347 states have return successors, (2135), 1571 states have call predecessors, (2135), 1572 states have call successors, (2135) [2023-04-02 05:01:29,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10775 states to 10775 states and 13614 transitions. [2023-04-02 05:01:29,856 INFO L78 Accepts]: Start accepts. Automaton has 10775 states and 13614 transitions. Word has length 321 [2023-04-02 05:01:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:29,856 INFO L495 AbstractCegarLoop]: Abstraction has 10775 states and 13614 transitions. [2023-04-02 05:01:29,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 9 states have internal predecessors, (105), 4 states have call successors, (29), 9 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2023-04-02 05:01:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 10775 states and 13614 transitions. [2023-04-02 05:01:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-04-02 05:01:29,866 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:29,866 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:29,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-04-02 05:01:29,867 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:29,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:29,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1669966003, now seen corresponding path program 1 times [2023-04-02 05:01:29,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:29,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130338723] [2023-04-02 05:01:29,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:29,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:01:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:01:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2023-04-02 05:01:30,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:30,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130338723] [2023-04-02 05:01:30,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130338723] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:30,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895053805] [2023-04-02 05:01:30,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:30,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:30,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:30,446 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) [2023-04-02 05:01:30,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-02 05:01:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:30,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 05:01:30,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2023-04-02 05:01:30,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:30,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895053805] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:30,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:30,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2023-04-02 05:01:30,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135797333] [2023-04-02 05:01:30,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:30,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:01:30,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:30,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:01:30,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:01:30,799 INFO L87 Difference]: Start difference. First operand 10775 states and 13614 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 05:01:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:32,354 INFO L93 Difference]: Finished difference Result 19539 states and 24577 transitions. [2023-04-02 05:01:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:01:32,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 321 [2023-04-02 05:01:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:32,381 INFO L225 Difference]: With dead ends: 19539 [2023-04-02 05:01:32,382 INFO L226 Difference]: Without dead ends: 10373 [2023-04-02 05:01:32,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:01:32,398 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 352 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:32,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 63 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:01:32,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10373 states. [2023-04-02 05:01:33,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10373 to 9981. [2023-04-02 05:01:33,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 7292 states have (on average 1.2589138782227098) internal successors, (9180), 7596 states have internal predecessors, (9180), 1449 states have call successors, (1449), 937 states have call predecessors, (1449), 1239 states have return successors, (1919), 1447 states have call predecessors, (1919), 1448 states have call successors, (1919) [2023-04-02 05:01:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 12548 transitions. [2023-04-02 05:01:33,770 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 12548 transitions. Word has length 321 [2023-04-02 05:01:33,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:33,770 INFO L495 AbstractCegarLoop]: Abstraction has 9981 states and 12548 transitions. [2023-04-02 05:01:33,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 05:01:33,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 12548 transitions. [2023-04-02 05:01:33,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-04-02 05:01:33,777 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:33,777 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:33,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:33,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:33,988 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:33,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:33,989 INFO L85 PathProgramCache]: Analyzing trace with hash -887522410, now seen corresponding path program 1 times [2023-04-02 05:01:33,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:33,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135751149] [2023-04-02 05:01:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:33,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-04-02 05:01:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:01:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:01:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2023-04-02 05:01:34,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:34,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135751149] [2023-04-02 05:01:34,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135751149] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:34,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779366804] [2023-04-02 05:01:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:34,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:34,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:34,459 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) [2023-04-02 05:01:34,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-02 05:01:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:34,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-02 05:01:34,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-04-02 05:01:34,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:34,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779366804] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:34,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:34,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2023-04-02 05:01:34,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624725403] [2023-04-02 05:01:34,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:34,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:34,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:34,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:34,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2023-04-02 05:01:34,945 INFO L87 Difference]: Start difference. First operand 9981 states and 12548 transitions. Second operand has 13 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 05:01:38,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:38,118 INFO L93 Difference]: Finished difference Result 18177 states and 22835 transitions. [2023-04-02 05:01:38,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 05:01:38,118 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) Word has length 322 [2023-04-02 05:01:38,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:38,155 INFO L225 Difference]: With dead ends: 18177 [2023-04-02 05:01:38,156 INFO L226 Difference]: Without dead ends: 10407 [2023-04-02 05:01:38,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=1267, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 05:01:38,176 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 459 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 4440 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 4549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:38,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 224 Invalid, 4549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4440 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 05:01:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2023-04-02 05:01:39,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 10013. [2023-04-02 05:01:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10013 states, 7316 states have (on average 1.2580645161290323) internal successors, (9204), 7612 states have internal predecessors, (9204), 1465 states have call successors, (1465), 945 states have call predecessors, (1465), 1231 states have return successors, (1895), 1455 states have call predecessors, (1895), 1464 states have call successors, (1895) [2023-04-02 05:01:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10013 states to 10013 states and 12564 transitions. [2023-04-02 05:01:39,342 INFO L78 Accepts]: Start accepts. Automaton has 10013 states and 12564 transitions. Word has length 322 [2023-04-02 05:01:39,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:39,342 INFO L495 AbstractCegarLoop]: Abstraction has 10013 states and 12564 transitions. [2023-04-02 05:01:39,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 05:01:39,342 INFO L276 IsEmpty]: Start isEmpty. Operand 10013 states and 12564 transitions. [2023-04-02 05:01:39,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-04-02 05:01:39,347 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:39,347 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:39,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:39,554 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,SelfDestructingSolverStorable33 [2023-04-02 05:01:39,555 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:39,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:39,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1232523396, now seen corresponding path program 1 times [2023-04-02 05:01:39,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:39,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271708504] [2023-04-02 05:01:39,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:39,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-04-02 05:01:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:01:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:01:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 05:01:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2023-04-02 05:01:40,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:40,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271708504] [2023-04-02 05:01:40,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271708504] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:40,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290776468] [2023-04-02 05:01:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:40,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:40,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:40,107 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) [2023-04-02 05:01:40,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-02 05:01:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:40,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 15 conjunts are in the unsatisfiable core [2023-04-02 05:01:40,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-04-02 05:01:40,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:40,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290776468] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:40,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:40,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 20 [2023-04-02 05:01:40,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830221319] [2023-04-02 05:01:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:40,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:01:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:40,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:01:40,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:01:40,447 INFO L87 Difference]: Start difference. First operand 10013 states and 12564 transitions. Second operand has 9 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 05:01:41,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:41,966 INFO L93 Difference]: Finished difference Result 17609 states and 22146 transitions. [2023-04-02 05:01:41,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:01:41,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 323 [2023-04-02 05:01:41,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:41,996 INFO L225 Difference]: With dead ends: 17609 [2023-04-02 05:01:41,996 INFO L226 Difference]: Without dead ends: 10191 [2023-04-02 05:01:42,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:01:42,010 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 149 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:42,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 2548 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 05:01:42,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10191 states. [2023-04-02 05:01:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10191 to 9293. [2023-04-02 05:01:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9293 states, 6796 states have (on average 1.251912889935256) internal successors, (8508), 7060 states have internal predecessors, (8508), 1337 states have call successors, (1337), 913 states have call predecessors, (1337), 1159 states have return successors, (1639), 1319 states have call predecessors, (1639), 1336 states have call successors, (1639) [2023-04-02 05:01:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9293 states to 9293 states and 11484 transitions. [2023-04-02 05:01:43,140 INFO L78 Accepts]: Start accepts. Automaton has 9293 states and 11484 transitions. Word has length 323 [2023-04-02 05:01:43,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:43,140 INFO L495 AbstractCegarLoop]: Abstraction has 9293 states and 11484 transitions. [2023-04-02 05:01:43,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 4 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 05:01:43,140 INFO L276 IsEmpty]: Start isEmpty. Operand 9293 states and 11484 transitions. [2023-04-02 05:01:43,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-04-02 05:01:43,146 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:43,146 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:43,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:43,354 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,SelfDestructingSolverStorable34 [2023-04-02 05:01:43,355 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:43,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:43,355 INFO L85 PathProgramCache]: Analyzing trace with hash 39146220, now seen corresponding path program 1 times [2023-04-02 05:01:43,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:43,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244995932] [2023-04-02 05:01:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:43,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:01:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:01:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:01:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:01:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:43,713 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2023-04-02 05:01:43,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:43,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244995932] [2023-04-02 05:01:43,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244995932] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:43,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:43,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:01:43,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384527377] [2023-04-02 05:01:43,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:43,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:43,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:43,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:43,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:01:43,715 INFO L87 Difference]: Start difference. First operand 9293 states and 11484 transitions. Second operand has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 6 states have internal predecessors, (107), 5 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 05:01:46,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:46,920 INFO L93 Difference]: Finished difference Result 22407 states and 29641 transitions. [2023-04-02 05:01:46,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 05:01:46,921 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 6 states have internal predecessors, (107), 5 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) Word has length 327 [2023-04-02 05:01:46,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:46,956 INFO L225 Difference]: With dead ends: 22407 [2023-04-02 05:01:46,956 INFO L226 Difference]: Without dead ends: 14973 [2023-04-02 05:01:46,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:01:46,969 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 671 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:46,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 98 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:01:46,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14973 states. [2023-04-02 05:01:48,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14973 to 10373. [2023-04-02 05:01:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10373 states, 7604 states have (on average 1.270384008416623) internal successors, (9660), 7892 states have internal predecessors, (9660), 1585 states have call successors, (1585), 913 states have call predecessors, (1585), 1183 states have return successors, (1919), 1567 states have call predecessors, (1919), 1584 states have call successors, (1919) [2023-04-02 05:01:48,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10373 states to 10373 states and 13164 transitions. [2023-04-02 05:01:48,283 INFO L78 Accepts]: Start accepts. Automaton has 10373 states and 13164 transitions. Word has length 327 [2023-04-02 05:01:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:48,283 INFO L495 AbstractCegarLoop]: Abstraction has 10373 states and 13164 transitions. [2023-04-02 05:01:48,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 6 states have internal predecessors, (107), 5 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 05:01:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 10373 states and 13164 transitions. [2023-04-02 05:01:48,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-04-02 05:01:48,289 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:48,289 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:48,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-04-02 05:01:48,289 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:48,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:48,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1946941800, now seen corresponding path program 1 times [2023-04-02 05:01:48,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:48,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161697529] [2023-04-02 05:01:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:48,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:01:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:01:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:01:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:01:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2023-04-02 05:01:48,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:48,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161697529] [2023-04-02 05:01:48,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161697529] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932157747] [2023-04-02 05:01:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:48,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:48,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:48,673 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) [2023-04-02 05:01:48,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-02 05:01:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:48,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:01:48,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2023-04-02 05:01:48,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:48,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932157747] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:48,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:48,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 05:01:48,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391700305] [2023-04-02 05:01:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:48,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:01:48,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:01:48,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-04-02 05:01:48,943 INFO L87 Difference]: Start difference. First operand 10373 states and 13164 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 05:01:50,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:50,451 INFO L93 Difference]: Finished difference Result 20383 states and 26049 transitions. [2023-04-02 05:01:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:01:50,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 327 [2023-04-02 05:01:50,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:50,481 INFO L225 Difference]: With dead ends: 20383 [2023-04-02 05:01:50,481 INFO L226 Difference]: Without dead ends: 10373 [2023-04-02 05:01:50,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:01:50,496 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 28 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:50,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 741 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:01:50,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10373 states. [2023-04-02 05:01:51,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10373 to 10373. [2023-04-02 05:01:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10373 states, 7604 states have (on average 1.235665439242504) internal successors, (9396), 7892 states have internal predecessors, (9396), 1585 states have call successors, (1585), 913 states have call predecessors, (1585), 1183 states have return successors, (1919), 1567 states have call predecessors, (1919), 1584 states have call successors, (1919) [2023-04-02 05:01:51,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10373 states to 10373 states and 12900 transitions. [2023-04-02 05:01:51,852 INFO L78 Accepts]: Start accepts. Automaton has 10373 states and 12900 transitions. Word has length 327 [2023-04-02 05:01:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:51,852 INFO L495 AbstractCegarLoop]: Abstraction has 10373 states and 12900 transitions. [2023-04-02 05:01:51,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 05:01:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 10373 states and 12900 transitions. [2023-04-02 05:01:51,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-04-02 05:01:51,859 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:51,859 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:51,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-04-02 05:01:52,066 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,SelfDestructingSolverStorable36 [2023-04-02 05:01:52,067 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:52,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1954701159, now seen corresponding path program 1 times [2023-04-02 05:01:52,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:52,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231425075] [2023-04-02 05:01:52,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:52,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:01:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:01:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:01:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:01:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2023-04-02 05:01:52,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:52,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231425075] [2023-04-02 05:01:52,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231425075] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:52,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899443441] [2023-04-02 05:01:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:52,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:52,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:52,497 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) [2023-04-02 05:01:52,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-02 05:01:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-02 05:01:52,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-04-02 05:01:53,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:53,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899443441] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:53,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:53,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 28 [2023-04-02 05:01:53,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367311863] [2023-04-02 05:01:53,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:53,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:53,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:53,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:53,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:01:53,007 INFO L87 Difference]: Start difference. First operand 10373 states and 12900 transitions. Second operand has 13 states, 12 states have (on average 10.583333333333334) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 05:01:55,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:55,603 INFO L93 Difference]: Finished difference Result 19153 states and 23859 transitions. [2023-04-02 05:01:55,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 05:01:55,603 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.583333333333334) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) Word has length 327 [2023-04-02 05:01:55,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:55,628 INFO L225 Difference]: With dead ends: 19153 [2023-04-02 05:01:55,628 INFO L226 Difference]: Without dead ends: 11399 [2023-04-02 05:01:55,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=1420, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:01:55,642 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 574 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 3337 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 3493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 3337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:55,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 163 Invalid, 3493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 3337 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:01:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11399 states. [2023-04-02 05:01:56,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11399 to 10389. [2023-04-02 05:01:56,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 7604 states have (on average 1.2346133613887427) internal successors, (9388), 7900 states have internal predecessors, (9388), 1601 states have call successors, (1601), 913 states have call predecessors, (1601), 1183 states have return successors, (1919), 1575 states have call predecessors, (1919), 1600 states have call successors, (1919) [2023-04-02 05:01:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 12908 transitions. [2023-04-02 05:01:56,898 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 12908 transitions. Word has length 327 [2023-04-02 05:01:56,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:56,898 INFO L495 AbstractCegarLoop]: Abstraction has 10389 states and 12908 transitions. [2023-04-02 05:01:56,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.583333333333334) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 05:01:56,899 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 12908 transitions. [2023-04-02 05:01:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-04-02 05:01:56,905 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:56,905 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:56,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:57,111 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,SelfDestructingSolverStorable37 [2023-04-02 05:01:57,112 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:57,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:57,112 INFO L85 PathProgramCache]: Analyzing trace with hash -284081817, now seen corresponding path program 1 times [2023-04-02 05:01:57,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:57,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321460473] [2023-04-02 05:01:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:57,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:01:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:01:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:01:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:01:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:01:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:01:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:01:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:01:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2023-04-02 05:01:57,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:57,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321460473] [2023-04-02 05:01:57,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321460473] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:57,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085374387] [2023-04-02 05:01:57,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:57,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:57,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:57,729 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) [2023-04-02 05:01:57,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-04-02 05:01:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-02 05:01:57,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2023-04-02 05:01:58,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:58,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085374387] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:58,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:58,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 28 [2023-04-02 05:01:58,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548254029] [2023-04-02 05:01:58,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:58,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:58,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:58,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:58,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:01:58,270 INFO L87 Difference]: Start difference. First operand 10389 states and 12908 transitions. Second operand has 13 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 05:02:01,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:01,694 INFO L93 Difference]: Finished difference Result 18505 states and 23026 transitions. [2023-04-02 05:02:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 05:02:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) Word has length 327 [2023-04-02 05:02:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:01,727 INFO L225 Difference]: With dead ends: 18505 [2023-04-02 05:02:01,728 INFO L226 Difference]: Without dead ends: 10711 [2023-04-02 05:02:01,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=1416, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:02:01,744 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 574 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 3478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:01,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 150 Invalid, 3478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 3319 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:02:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10711 states. [2023-04-02 05:02:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10711 to 10253. [2023-04-02 05:02:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10253 states, 7500 states have (on average 1.2288) internal successors, (9216), 7788 states have internal predecessors, (9216), 1581 states have call successors, (1581), 909 states have call predecessors, (1581), 1171 states have return successors, (1891), 1555 states have call predecessors, (1891), 1580 states have call successors, (1891) [2023-04-02 05:02:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10253 states to 10253 states and 12688 transitions. [2023-04-02 05:02:03,380 INFO L78 Accepts]: Start accepts. Automaton has 10253 states and 12688 transitions. Word has length 327 [2023-04-02 05:02:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:03,381 INFO L495 AbstractCegarLoop]: Abstraction has 10253 states and 12688 transitions. [2023-04-02 05:02:03,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 5 states have call successors, (29), 5 states have call predecessors, (29), 7 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 05:02:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 10253 states and 12688 transitions. [2023-04-02 05:02:03,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-04-02 05:02:03,389 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:03,389 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:02:03,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-04-02 05:02:03,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:03,596 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:03,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash 56237066, now seen corresponding path program 1 times [2023-04-02 05:02:03,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:03,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032892137] [2023-04-02 05:02:03,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:03,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:02:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:02:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:02:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:02:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:02:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:02:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:02:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:02:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:02:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:02:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:02:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:02:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:02:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:02:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-04-02 05:02:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:02:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:02:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:02:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:02:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:02:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:04,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:02:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2023-04-02 05:02:04,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:04,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032892137] [2023-04-02 05:02:04,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032892137] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:04,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429494651] [2023-04-02 05:02:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:04,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:02:04,018 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) [2023-04-02 05:02:04,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-04-02 05:02:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:04,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 17 conjunts are in the unsatisfiable core [2023-04-02 05:02:04,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:02:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2023-04-02 05:02:04,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:02:04,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429494651] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:04,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:02:04,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [21] total 25 [2023-04-02 05:02:04,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932398384] [2023-04-02 05:02:04,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:04,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:02:04,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:04,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:02:04,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:02:04,444 INFO L87 Difference]: Start difference. First operand 10253 states and 12688 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 4 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 05:02:05,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:05,964 INFO L93 Difference]: Finished difference Result 17111 states and 21223 transitions. [2023-04-02 05:02:05,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:02:05,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 4 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 329 [2023-04-02 05:02:05,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:05,980 INFO L225 Difference]: With dead ends: 17111 [2023-04-02 05:02:05,980 INFO L226 Difference]: Without dead ends: 8433 [2023-04-02 05:02:05,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:02:05,988 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 368 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:05,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 58 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:02:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8433 states. [2023-04-02 05:02:06,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8433 to 8081. [2023-04-02 05:02:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8081 states, 5896 states have (on average 1.2259158751696064) internal successors, (7228), 6136 states have internal predecessors, (7228), 1261 states have call successors, (1261), 725 states have call predecessors, (1261), 923 states have return successors, (1483), 1219 states have call predecessors, (1483), 1260 states have call successors, (1483) [2023-04-02 05:02:06,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8081 states to 8081 states and 9972 transitions. [2023-04-02 05:02:06,981 INFO L78 Accepts]: Start accepts. Automaton has 8081 states and 9972 transitions. Word has length 329 [2023-04-02 05:02:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:06,981 INFO L495 AbstractCegarLoop]: Abstraction has 8081 states and 9972 transitions. [2023-04-02 05:02:06,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 4 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 05:02:06,981 INFO L276 IsEmpty]: Start isEmpty. Operand 8081 states and 9972 transitions. [2023-04-02 05:02:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-04-02 05:02:06,984 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:06,984 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:02:06,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-04-02 05:02:07,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-04-02 05:02:07,191 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:07,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:07,191 INFO L85 PathProgramCache]: Analyzing trace with hash 511250825, now seen corresponding path program 1 times [2023-04-02 05:02:07,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:07,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135439810] [2023-04-02 05:02:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:07,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:02:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:02:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:02:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:02:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:02:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:02:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:02:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:02:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:02:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:02:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:02:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:02:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:02:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:02:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:02:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:02:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:02:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:02:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:02:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 05:02:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 05:02:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2023-04-02 05:02:07,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:07,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135439810] [2023-04-02 05:02:07,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135439810] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:07,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351819898] [2023-04-02 05:02:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:07,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:07,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:02:07,536 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) [2023-04-02 05:02:07,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-04-02 05:02:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:07,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 05:02:07,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:02:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2023-04-02 05:02:07,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:02:07,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351819898] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:02:07,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:02:07,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 16 [2023-04-02 05:02:07,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302083177] [2023-04-02 05:02:07,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:07,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 05:02:07,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 05:02:07,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:02:07,864 INFO L87 Difference]: Start difference. First operand 8081 states and 9972 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 05:02:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:09,178 INFO L93 Difference]: Finished difference Result 14845 states and 18408 transitions. [2023-04-02 05:02:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 05:02:09,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 329 [2023-04-02 05:02:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:09,198 INFO L225 Difference]: With dead ends: 14845 [2023-04-02 05:02:09,199 INFO L226 Difference]: Without dead ends: 8059 [2023-04-02 05:02:09,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:02:09,209 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 133 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:09,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 578 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:02:09,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8059 states. [2023-04-02 05:02:10,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8059 to 7505. [2023-04-02 05:02:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7505 states, 5480 states have (on average 1.2094890510948906) internal successors, (6628), 5680 states have internal predecessors, (6628), 1149 states have call successors, (1149), 709 states have call predecessors, (1149), 875 states have return successors, (1315), 1115 states have call predecessors, (1315), 1148 states have call successors, (1315) [2023-04-02 05:02:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 9092 transitions. [2023-04-02 05:02:10,217 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 9092 transitions. Word has length 329 [2023-04-02 05:02:10,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:10,217 INFO L495 AbstractCegarLoop]: Abstraction has 7505 states and 9092 transitions. [2023-04-02 05:02:10,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 05:02:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 9092 transitions. [2023-04-02 05:02:10,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-04-02 05:02:10,223 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:10,223 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:02:10,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-04-02 05:02:10,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:10,430 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:10,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 170935563, now seen corresponding path program 1 times [2023-04-02 05:02:10,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:10,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790944803] [2023-04-02 05:02:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:10,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:02:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:02:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:02:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:02:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:02:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:02:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:02:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:02:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:02:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:02:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:02:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:02:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:02:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:02:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:02:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:02:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:02:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:02:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-04-02 05:02:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-04-02 05:02:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-04-02 05:02:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-04-02 05:02:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-04-02 05:02:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-04-02 05:02:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:02:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:02:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:02:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 25 proven. 205 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2023-04-02 05:02:11,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790944803] [2023-04-02 05:02:11,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790944803] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722398341] [2023-04-02 05:02:11,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:11,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:11,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:02:11,464 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) [2023-04-02 05:02:11,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-04-02 05:02:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:11,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 1900 conjuncts, 56 conjunts are in the unsatisfiable core [2023-04-02 05:02:11,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:02:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 202 proven. 124 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-04-02 05:02:12,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:02:13,090 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 37 proven. 66 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2023-04-02 05:02:13,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722398341] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:02:13,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:02:13,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13, 14] total 38 [2023-04-02 05:02:13,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430027592] [2023-04-02 05:02:13,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:02:13,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-04-02 05:02:13,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:13,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-04-02 05:02:13,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1273, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 05:02:13,093 INFO L87 Difference]: Start difference. First operand 7505 states and 9092 transitions. Second operand has 38 states, 38 states have (on average 7.921052631578948) internal successors, (301), 25 states have internal predecessors, (301), 11 states have call successors, (90), 15 states have call predecessors, (90), 18 states have return successors, (88), 18 states have call predecessors, (88), 11 states have call successors, (88) [2023-04-02 05:02:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:27,464 INFO L93 Difference]: Finished difference Result 19974 states and 24892 transitions. [2023-04-02 05:02:27,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-04-02 05:02:27,464 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.921052631578948) internal successors, (301), 25 states have internal predecessors, (301), 11 states have call successors, (90), 15 states have call predecessors, (90), 18 states have return successors, (88), 18 states have call predecessors, (88), 11 states have call successors, (88) Word has length 397 [2023-04-02 05:02:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:27,499 INFO L225 Difference]: With dead ends: 19974 [2023-04-02 05:02:27,499 INFO L226 Difference]: Without dead ends: 13260 [2023-04-02 05:02:27,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1026 GetRequests, 887 SyntacticMatches, 11 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4786 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2225, Invalid=14545, Unknown=0, NotChecked=0, Total=16770 [2023-04-02 05:02:27,516 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 5578 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 14418 mSolverCounterSat, 2430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5579 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 16848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2430 IncrementalHoareTripleChecker+Valid, 14418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:27,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5579 Valid, 453 Invalid, 16848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2430 Valid, 14418 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 05:02:27,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13260 states. [2023-04-02 05:02:29,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13260 to 11036. [2023-04-02 05:02:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11036 states, 8003 states have (on average 1.1984255904035988) internal successors, (9591), 8315 states have internal predecessors, (9591), 1697 states have call successors, (1697), 1081 states have call predecessors, (1697), 1335 states have return successors, (1951), 1639 states have call predecessors, (1951), 1696 states have call successors, (1951) [2023-04-02 05:02:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11036 states to 11036 states and 13239 transitions. [2023-04-02 05:02:29,250 INFO L78 Accepts]: Start accepts. Automaton has 11036 states and 13239 transitions. Word has length 397 [2023-04-02 05:02:29,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:29,250 INFO L495 AbstractCegarLoop]: Abstraction has 11036 states and 13239 transitions. [2023-04-02 05:02:29,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.921052631578948) internal successors, (301), 25 states have internal predecessors, (301), 11 states have call successors, (90), 15 states have call predecessors, (90), 18 states have return successors, (88), 18 states have call predecessors, (88), 11 states have call successors, (88) [2023-04-02 05:02:29,250 INFO L276 IsEmpty]: Start isEmpty. Operand 11036 states and 13239 transitions. [2023-04-02 05:02:29,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-04-02 05:02:29,261 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:29,261 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:02:29,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-04-02 05:02:29,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:29,487 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:29,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash 255513898, now seen corresponding path program 1 times [2023-04-02 05:02:29,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:29,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317948594] [2023-04-02 05:02:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:29,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:02:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:02:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:02:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:02:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:02:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:02:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:02:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:02:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:02:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:02:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:02:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:02:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:02:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:02:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:02:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:02:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:02:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 05:02:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:02:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-04-02 05:02:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-04-02 05:02:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-04-02 05:02:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-04-02 05:02:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-04-02 05:02:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-04-02 05:02:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:02:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 05:02:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:02:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 05:02:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 53 proven. 52 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2023-04-02 05:02:30,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317948594] [2023-04-02 05:02:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317948594] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865868145] [2023-04-02 05:02:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:30,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:30,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:02:30,469 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) [2023-04-02 05:02:30,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-04-02 05:02:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:30,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 50 conjunts are in the unsatisfiable core [2023-04-02 05:02:30,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:02:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 243 proven. 257 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2023-04-02 05:02:31,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:02:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2023-04-02 05:02:31,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865868145] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:31,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-02 05:02:31,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [22, 17] total 38 [2023-04-02 05:02:31,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904460712] [2023-04-02 05:02:31,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:02:31,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:02:31,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:31,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:02:31,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1294, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 05:02:31,660 INFO L87 Difference]: Start difference. First operand 11036 states and 13239 transitions. Second operand has 5 states, 4 states have (on average 30.25) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2023-04-02 05:02:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:33,214 INFO L93 Difference]: Finished difference Result 19874 states and 23914 transitions. [2023-04-02 05:02:33,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:02:33,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.25) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 417 [2023-04-02 05:02:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:33,241 INFO L225 Difference]: With dead ends: 19874 [2023-04-02 05:02:33,242 INFO L226 Difference]: Without dead ends: 9878 [2023-04-02 05:02:33,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 951 GetRequests, 911 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=112, Invalid=1294, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 05:02:33,251 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 0 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:33,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 791 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:02:33,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9878 states. [2023-04-02 05:02:34,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9878 to 9878. [2023-04-02 05:02:34,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9878 states, 7156 states have (on average 1.1994130799329235) internal successors, (8583), 7430 states have internal predecessors, (8583), 1524 states have call successors, (1524), 974 states have call predecessors, (1524), 1197 states have return successors, (1747), 1473 states have call predecessors, (1747), 1523 states have call successors, (1747) [2023-04-02 05:02:34,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9878 states to 9878 states and 11854 transitions. [2023-04-02 05:02:34,862 INFO L78 Accepts]: Start accepts. Automaton has 9878 states and 11854 transitions. Word has length 417 [2023-04-02 05:02:34,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:34,864 INFO L495 AbstractCegarLoop]: Abstraction has 9878 states and 11854 transitions. [2023-04-02 05:02:34,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.25) internal successors, (121), 5 states have internal predecessors, (121), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2023-04-02 05:02:34,864 INFO L276 IsEmpty]: Start isEmpty. Operand 9878 states and 11854 transitions. [2023-04-02 05:02:34,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-04-02 05:02:34,873 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:34,873 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:02:34,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-04-02 05:02:35,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:35,081 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:35,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:35,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1314660999, now seen corresponding path program 1 times [2023-04-02 05:02:35,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:35,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632288409] [2023-04-02 05:02:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:35,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:02:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:02:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:02:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:02:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:02:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:02:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:02:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:02:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:02:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:02:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:02:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:02:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:02:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:02:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-04-02 05:02:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-04-02 05:02:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:02:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:02:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:02:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:02:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-04-02 05:02:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-04-02 05:02:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:02:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-04-02 05:02:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-04-02 05:02:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-04-02 05:02:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-04-02 05:02:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:02:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:02:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:02:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:02:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:02:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:35,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 70 proven. 194 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2023-04-02 05:02:35,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:35,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632288409] [2023-04-02 05:02:35,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632288409] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:35,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245685915] [2023-04-02 05:02:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:35,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:35,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:02:35,966 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) [2023-04-02 05:02:36,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-04-02 05:02:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:36,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 1984 conjuncts, 86 conjunts are in the unsatisfiable core [2023-04-02 05:02:36,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:02:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 508 proven. 191 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-04-02 05:02:37,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:02:39,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 88 proven. 217 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2023-04-02 05:02:39,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245685915] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:02:39,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:02:39,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25, 22] total 64 [2023-04-02 05:02:39,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170311165] [2023-04-02 05:02:39,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:02:39,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-04-02 05:02:39,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:39,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-04-02 05:02:39,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=3692, Unknown=0, NotChecked=0, Total=4032 [2023-04-02 05:02:39,439 INFO L87 Difference]: Start difference. First operand 9878 states and 11854 transitions. Second operand has 64 states, 61 states have (on average 6.721311475409836) internal successors, (410), 46 states have internal predecessors, (410), 27 states have call successors, (108), 18 states have call predecessors, (108), 27 states have return successors, (104), 31 states have call predecessors, (104), 27 states have call successors, (104) [2023-04-02 05:02:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:52,390 INFO L93 Difference]: Finished difference Result 21959 states and 26335 transitions. [2023-04-02 05:02:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-04-02 05:02:52,390 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 61 states have (on average 6.721311475409836) internal successors, (410), 46 states have internal predecessors, (410), 27 states have call successors, (108), 18 states have call predecessors, (108), 27 states have return successors, (104), 31 states have call predecessors, (104), 27 states have call successors, (104) Word has length 427 [2023-04-02 05:02:52,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:52,423 INFO L225 Difference]: With dead ends: 21959 [2023-04-02 05:02:52,423 INFO L226 Difference]: Without dead ends: 12812 [2023-04-02 05:02:52,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1064 GetRequests, 931 SyntacticMatches, 4 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4772 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2327, Invalid=14703, Unknown=0, NotChecked=0, Total=17030 [2023-04-02 05:02:52,437 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 4613 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 11728 mSolverCounterSat, 1752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4620 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 13480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1752 IncrementalHoareTripleChecker+Valid, 11728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:52,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4620 Valid, 519 Invalid, 13480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1752 Valid, 11728 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 05:02:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12812 states. [2023-04-02 05:02:54,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12812 to 9473. [2023-04-02 05:02:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9473 states, 6881 states have (on average 1.195175119895364) internal successors, (8224), 7140 states have internal predecessors, (8224), 1442 states have call successors, (1442), 941 states have call predecessors, (1442), 1149 states have return successors, (1650), 1391 states have call predecessors, (1650), 1441 states have call successors, (1650) [2023-04-02 05:02:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9473 states to 9473 states and 11316 transitions. [2023-04-02 05:02:54,160 INFO L78 Accepts]: Start accepts. Automaton has 9473 states and 11316 transitions. Word has length 427 [2023-04-02 05:02:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:54,160 INFO L495 AbstractCegarLoop]: Abstraction has 9473 states and 11316 transitions. [2023-04-02 05:02:54,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 61 states have (on average 6.721311475409836) internal successors, (410), 46 states have internal predecessors, (410), 27 states have call successors, (108), 18 states have call predecessors, (108), 27 states have return successors, (104), 31 states have call predecessors, (104), 27 states have call successors, (104) [2023-04-02 05:02:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 9473 states and 11316 transitions. [2023-04-02 05:02:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2023-04-02 05:02:54,170 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:54,170 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:02:54,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-04-02 05:02:54,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:54,378 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:54,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1970795693, now seen corresponding path program 1 times [2023-04-02 05:02:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:54,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528045729] [2023-04-02 05:02:54,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:54,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:54,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:02:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:02:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:02:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:02:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:02:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:02:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:02:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:02:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:02:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:02:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:02:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:02:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:02:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:02:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-04-02 05:02:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-04-02 05:02:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:02:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:02:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:02:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:02:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:02:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 05:02:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-04-02 05:02:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-04-02 05:02:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:02:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-04-02 05:02:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-04-02 05:02:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-04-02 05:02:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-04-02 05:02:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:02:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:02:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:02:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:02:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:02:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 124 proven. 148 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2023-04-02 05:02:55,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:55,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528045729] [2023-04-02 05:02:55,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528045729] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:55,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689283506] [2023-04-02 05:02:55,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:55,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:55,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:02:55,733 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) [2023-04-02 05:02:55,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-04-02 05:02:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:56,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 2010 conjuncts, 88 conjunts are in the unsatisfiable core [2023-04-02 05:02:56,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:02:57,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 577 proven. 240 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-04-02 05:02:57,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:02:58,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 142 proven. 182 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2023-04-02 05:02:58,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689283506] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:02:58,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:02:58,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 24, 21] total 61 [2023-04-02 05:02:58,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952542858] [2023-04-02 05:02:58,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:02:58,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-04-02 05:02:58,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:58,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-04-02 05:02:58,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=3352, Unknown=0, NotChecked=0, Total=3660 [2023-04-02 05:02:58,722 INFO L87 Difference]: Start difference. First operand 9473 states and 11316 transitions. Second operand has 61 states, 59 states have (on average 7.237288135593221) internal successors, (427), 43 states have internal predecessors, (427), 24 states have call successors, (110), 16 states have call predecessors, (110), 26 states have return successors, (107), 33 states have call predecessors, (107), 24 states have call successors, (107) [2023-04-02 05:03:11,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:03:11,137 INFO L93 Difference]: Finished difference Result 23347 states and 27903 transitions. [2023-04-02 05:03:11,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-04-02 05:03:11,138 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 59 states have (on average 7.237288135593221) internal successors, (427), 43 states have internal predecessors, (427), 24 states have call successors, (110), 16 states have call predecessors, (110), 26 states have return successors, (107), 33 states have call predecessors, (107), 24 states have call successors, (107) Word has length 438 [2023-04-02 05:03:11,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:03:11,173 INFO L225 Difference]: With dead ends: 23347 [2023-04-02 05:03:11,173 INFO L226 Difference]: Without dead ends: 14492 [2023-04-02 05:03:11,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1099 GetRequests, 965 SyntacticMatches, 4 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4991 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2240, Invalid=15052, Unknown=0, NotChecked=0, Total=17292 [2023-04-02 05:03:11,186 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2177 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 12974 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 13761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 12974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:03:11,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 490 Invalid, 13761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 12974 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-04-02 05:03:11,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14492 states. [2023-04-02 05:03:13,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14492 to 9092. [2023-04-02 05:03:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9092 states, 6631 states have (on average 1.1860956115216408) internal successors, (7865), 6889 states have internal predecessors, (7865), 1370 states have call successors, (1370), 895 states have call predecessors, (1370), 1090 states have return successors, (1565), 1307 states have call predecessors, (1565), 1369 states have call successors, (1565) [2023-04-02 05:03:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9092 states to 9092 states and 10800 transitions. [2023-04-02 05:03:13,299 INFO L78 Accepts]: Start accepts. Automaton has 9092 states and 10800 transitions. Word has length 438 [2023-04-02 05:03:13,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:03:13,299 INFO L495 AbstractCegarLoop]: Abstraction has 9092 states and 10800 transitions. [2023-04-02 05:03:13,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 59 states have (on average 7.237288135593221) internal successors, (427), 43 states have internal predecessors, (427), 24 states have call successors, (110), 16 states have call predecessors, (110), 26 states have return successors, (107), 33 states have call predecessors, (107), 24 states have call successors, (107) [2023-04-02 05:03:13,299 INFO L276 IsEmpty]: Start isEmpty. Operand 9092 states and 10800 transitions. [2023-04-02 05:03:13,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-04-02 05:03:13,307 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:03:13,308 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:03:13,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-04-02 05:03:13,515 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,SelfDestructingSolverStorable44 [2023-04-02 05:03:13,515 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:03:13,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:03:13,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1274644619, now seen corresponding path program 1 times [2023-04-02 05:03:13,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:03:13,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219926747] [2023-04-02 05:03:13,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:13,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:03:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:03:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:03:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:03:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:03:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:03:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:03:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:03:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:03:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:03:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:03:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:03:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:03:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:03:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:03:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:03:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:03:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:03:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:03:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:03:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-04-02 05:03:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-04-02 05:03:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:03:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:03:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:03:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:03:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:03:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:03:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:03:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:03:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:03:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-04-02 05:03:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-04-02 05:03:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:03:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-04-02 05:03:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-04-02 05:03:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-04-02 05:03:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-04-02 05:03:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:03:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:03:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:03:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:03:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:03:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:03:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 1226 trivial. 0 not checked. [2023-04-02 05:03:14,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:03:14,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219926747] [2023-04-02 05:03:14,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219926747] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:03:14,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821845382] [2023-04-02 05:03:14,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:14,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:03:14,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:03:14,663 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) [2023-04-02 05:03:14,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-04-02 05:03:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:15,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 2097 conjuncts, 69 conjunts are in the unsatisfiable core [2023-04-02 05:03:15,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:03:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 312 proven. 358 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2023-04-02 05:03:16,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:03:18,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 30 proven. 92 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2023-04-02 05:03:18,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821845382] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:03:18,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:03:18,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 27, 22] total 65 [2023-04-02 05:03:18,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281612370] [2023-04-02 05:03:18,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:03:18,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2023-04-02 05:03:18,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:03:18,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2023-04-02 05:03:18,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=417, Invalid=3743, Unknown=0, NotChecked=0, Total=4160 [2023-04-02 05:03:18,458 INFO L87 Difference]: Start difference. First operand 9092 states and 10800 transitions. Second operand has 65 states, 62 states have (on average 6.435483870967742) internal successors, (399), 49 states have internal predecessors, (399), 31 states have call successors, (120), 25 states have call predecessors, (120), 24 states have return successors, (110), 30 states have call predecessors, (110), 31 states have call successors, (110) [2023-04-02 05:03:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:03:51,148 INFO L93 Difference]: Finished difference Result 23623 states and 28635 transitions. [2023-04-02 05:03:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2023-04-02 05:03:51,149 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 62 states have (on average 6.435483870967742) internal successors, (399), 49 states have internal predecessors, (399), 31 states have call successors, (120), 25 states have call predecessors, (120), 24 states have return successors, (110), 30 states have call predecessors, (110), 31 states have call successors, (110) Word has length 464 [2023-04-02 05:03:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:03:51,194 INFO L225 Difference]: With dead ends: 23623 [2023-04-02 05:03:51,195 INFO L226 Difference]: Without dead ends: 15187 [2023-04-02 05:03:51,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1272 GetRequests, 1031 SyntacticMatches, 0 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20957 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=7031, Invalid=51775, Unknown=0, NotChecked=0, Total=58806 [2023-04-02 05:03:51,215 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 6396 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 13302 mSolverCounterSat, 2857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6396 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 16159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2857 IncrementalHoareTripleChecker+Valid, 13302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:03:51,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6396 Valid, 251 Invalid, 16159 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2857 Valid, 13302 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-04-02 05:03:51,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15187 states. [2023-04-02 05:03:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15187 to 10385. [2023-04-02 05:03:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10385 states, 7551 states have (on average 1.1887167262614222) internal successors, (8976), 7852 states have internal predecessors, (8976), 1577 states have call successors, (1577), 1019 states have call predecessors, (1577), 1256 states have return successors, (1828), 1513 states have call predecessors, (1828), 1576 states have call successors, (1828) [2023-04-02 05:03:53,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10385 states to 10385 states and 12381 transitions. [2023-04-02 05:03:53,860 INFO L78 Accepts]: Start accepts. Automaton has 10385 states and 12381 transitions. Word has length 464 [2023-04-02 05:03:53,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:03:53,861 INFO L495 AbstractCegarLoop]: Abstraction has 10385 states and 12381 transitions. [2023-04-02 05:03:53,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 62 states have (on average 6.435483870967742) internal successors, (399), 49 states have internal predecessors, (399), 31 states have call successors, (120), 25 states have call predecessors, (120), 24 states have return successors, (110), 30 states have call predecessors, (110), 31 states have call successors, (110) [2023-04-02 05:03:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 10385 states and 12381 transitions. [2023-04-02 05:03:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2023-04-02 05:03:53,872 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:03:53,872 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:03:53,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-04-02 05:03:54,085 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,SelfDestructingSolverStorable45 [2023-04-02 05:03:54,085 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:03:54,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:03:54,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1652748644, now seen corresponding path program 1 times [2023-04-02 05:03:54,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:03:54,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481392567] [2023-04-02 05:03:54,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:54,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:03:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:03:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:03:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:03:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:03:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:03:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:03:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:03:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:03:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:03:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:03:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:03:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:03:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:03:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:03:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:03:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:03:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 05:03:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-04-02 05:03:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-04-02 05:03:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-04-02 05:03:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-04-02 05:03:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:03:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:03:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:03:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:03:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:03:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:03:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:03:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:03:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:03:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-04-02 05:03:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-04-02 05:03:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:03:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-04-02 05:03:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2023-04-02 05:03:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2023-04-02 05:03:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2023-04-02 05:03:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:03:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:03:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:03:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:03:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:03:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:03:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2023-04-02 05:03:54,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:03:54,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481392567] [2023-04-02 05:03:54,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481392567] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:03:54,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725705407] [2023-04-02 05:03:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:54,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:03:54,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:03:54,494 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) [2023-04-02 05:03:54,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-04-02 05:03:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:54,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 2098 conjuncts, 50 conjunts are in the unsatisfiable core [2023-04-02 05:03:54,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:03:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 432 proven. 52 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2023-04-02 05:03:55,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:03:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2023-04-02 05:03:55,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725705407] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:03:55,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:03:55,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11] total 29 [2023-04-02 05:03:55,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823463795] [2023-04-02 05:03:55,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:03:55,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-04-02 05:03:55,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:03:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-04-02 05:03:55,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2023-04-02 05:03:55,662 INFO L87 Difference]: Start difference. First operand 10385 states and 12381 transitions. Second operand has 29 states, 26 states have (on average 12.307692307692308) internal successors, (320), 20 states have internal predecessors, (320), 11 states have call successors, (94), 12 states have call predecessors, (94), 11 states have return successors, (87), 9 states have call predecessors, (87), 11 states have call successors, (87) [2023-04-02 05:04:00,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:00,700 INFO L93 Difference]: Finished difference Result 17090 states and 20420 transitions. [2023-04-02 05:04:00,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-04-02 05:04:00,701 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 12.307692307692308) internal successors, (320), 20 states have internal predecessors, (320), 11 states have call successors, (94), 12 states have call predecessors, (94), 11 states have return successors, (87), 9 states have call predecessors, (87), 11 states have call successors, (87) Word has length 466 [2023-04-02 05:04:00,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:00,717 INFO L225 Difference]: With dead ends: 17090 [2023-04-02 05:04:00,717 INFO L226 Difference]: Without dead ends: 7447 [2023-04-02 05:04:00,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1095 GetRequests, 1027 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1246 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-04-02 05:04:00,729 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1564 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 3839 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 4445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 3839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:00,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 198 Invalid, 4445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [606 Valid, 3839 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 05:04:00,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7447 states. [2023-04-02 05:04:02,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7447 to 7385. [2023-04-02 05:04:02,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7385 states, 5401 states have (on average 1.178855767450472) internal successors, (6367), 5601 states have internal predecessors, (6367), 1114 states have call successors, (1114), 718 states have call predecessors, (1114), 869 states have return successors, (1275), 1065 states have call predecessors, (1275), 1113 states have call successors, (1275) [2023-04-02 05:04:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7385 states to 7385 states and 8756 transitions. [2023-04-02 05:04:02,508 INFO L78 Accepts]: Start accepts. Automaton has 7385 states and 8756 transitions. Word has length 466 [2023-04-02 05:04:02,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:02,509 INFO L495 AbstractCegarLoop]: Abstraction has 7385 states and 8756 transitions. [2023-04-02 05:04:02,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 12.307692307692308) internal successors, (320), 20 states have internal predecessors, (320), 11 states have call successors, (94), 12 states have call predecessors, (94), 11 states have return successors, (87), 9 states have call predecessors, (87), 11 states have call successors, (87) [2023-04-02 05:04:02,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7385 states and 8756 transitions. [2023-04-02 05:04:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-04-02 05:04:02,532 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:02,532 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:04:02,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-04-02 05:04:02,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:04:02,741 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:02,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:02,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1767270793, now seen corresponding path program 1 times [2023-04-02 05:04:02,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:02,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181607206] [2023-04-02 05:04:02,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:02,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:04:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:04:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:04:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:04:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:04:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:04:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:04:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:04:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:04:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:04:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:04:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:04:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:04:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:04:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:04:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:04:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:02,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:04:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:04:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:04:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-04-02 05:04:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:04:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-04-02 05:04:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:04:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:04:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:04:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:04:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:04:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:04:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 05:04:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 05:04:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 05:04:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-04-02 05:04:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-04-02 05:04:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:04:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-04-02 05:04:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-04-02 05:04:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-04-02 05:04:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:04:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-04-02 05:04:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:04:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:04:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:04:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 05:04:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:04:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 05:04:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:03,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1217 trivial. 0 not checked. [2023-04-02 05:04:03,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:03,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181607206] [2023-04-02 05:04:03,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181607206] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:04:03,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:04:03,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:04:03,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500200635] [2023-04-02 05:04:03,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:04:03,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:04:03,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:03,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:04:03,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:04:03,142 INFO L87 Difference]: Start difference. First operand 7385 states and 8756 transitions. Second operand has 17 states, 16 states have (on average 8.3125) internal successors, (133), 9 states have internal predecessors, (133), 5 states have call successors, (37), 9 states have call predecessors, (37), 5 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) [2023-04-02 05:04:10,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:04:10,040 INFO L93 Difference]: Finished difference Result 18907 states and 22947 transitions. [2023-04-02 05:04:10,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:04:10,041 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.3125) internal successors, (133), 9 states have internal predecessors, (133), 5 states have call successors, (37), 9 states have call predecessors, (37), 5 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) Word has length 464 [2023-04-02 05:04:10,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:04:10,065 INFO L225 Difference]: With dead ends: 18907 [2023-04-02 05:04:10,065 INFO L226 Difference]: Without dead ends: 12276 [2023-04-02 05:04:10,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=487, Invalid=1963, Unknown=0, NotChecked=0, Total=2450 [2023-04-02 05:04:10,073 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 754 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 5192 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 5369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 5192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:04:10,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 230 Invalid, 5369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 5192 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 05:04:10,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12276 states. [2023-04-02 05:04:12,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12276 to 9233. [2023-04-02 05:04:12,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9233 states, 6757 states have (on average 1.1730057717922155) internal successors, (7926), 7004 states have internal predecessors, (7926), 1354 states have call successors, (1354), 884 states have call predecessors, (1354), 1121 states have return successors, (1645), 1344 states have call predecessors, (1645), 1353 states have call successors, (1645) [2023-04-02 05:04:12,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9233 states to 9233 states and 10925 transitions. [2023-04-02 05:04:12,580 INFO L78 Accepts]: Start accepts. Automaton has 9233 states and 10925 transitions. Word has length 464 [2023-04-02 05:04:12,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:04:12,581 INFO L495 AbstractCegarLoop]: Abstraction has 9233 states and 10925 transitions. [2023-04-02 05:04:12,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.3125) internal successors, (133), 9 states have internal predecessors, (133), 5 states have call successors, (37), 9 states have call predecessors, (37), 5 states have return successors, (36), 5 states have call predecessors, (36), 4 states have call successors, (36) [2023-04-02 05:04:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 9233 states and 10925 transitions. [2023-04-02 05:04:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2023-04-02 05:04:12,603 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:04:12,604 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:04:12,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-04-02 05:04:12,604 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:04:12,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:04:12,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1037095320, now seen corresponding path program 1 times [2023-04-02 05:04:12,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:04:12,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646134109] [2023-04-02 05:04:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:12,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:04:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:04:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:04:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:04:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:04:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:04:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:04:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:04:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:04:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:04:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:04:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:04:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:04:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:04:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:04:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:04:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:04:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 05:04:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 05:04:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:04:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 05:04:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-02 05:04:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-04-02 05:04:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:04:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-04-02 05:04:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:04:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:04:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:04:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 05:04:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 05:04:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 05:04:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 05:04:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 05:04:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 05:04:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-04-02 05:04:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-04-02 05:04:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:04:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2023-04-02 05:04:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-04-02 05:04:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:04:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-04-02 05:04:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:04:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-04-02 05:04:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 05:04:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 05:04:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 05:04:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:04:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 05:04:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:04:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 1228 trivial. 0 not checked. [2023-04-02 05:04:13,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:04:13,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646134109] [2023-04-02 05:04:13,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646134109] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:04:13,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839843548] [2023-04-02 05:04:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:04:13,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:04:13,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:04:13,682 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:04:13,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-04-02 05:04:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:04:14,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 2097 conjuncts, 71 conjunts are in the unsatisfiable core [2023-04-02 05:04:14,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:04:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 314 proven. 355 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2023-04-02 05:04:15,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:04:17,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 30 proven. 91 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-04-02 05:04:17,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839843548] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:04:17,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:04:17,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 29, 24] total 70 [2023-04-02 05:04:17,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854299396] [2023-04-02 05:04:17,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:04:17,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-04-02 05:04:17,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:04:17,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-04-02 05:04:17,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=4356, Unknown=0, NotChecked=0, Total=4830 [2023-04-02 05:04:17,657 INFO L87 Difference]: Start difference. First operand 9233 states and 10925 transitions. Second operand has 70 states, 64 states have (on average 6.40625) internal successors, (410), 51 states have internal predecessors, (410), 37 states have call successors, (121), 27 states have call predecessors, (121), 26 states have return successors, (116), 36 states have call predecessors, (116), 37 states have call successors, (116)