/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_floodmax.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 05:05:14,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 05:05:14,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 05:05:14,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 05:05:14,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 05:05:14,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 05:05:14,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 05:05:14,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 05:05:14,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 05:05:14,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 05:05:14,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 05:05:14,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 05:05:14,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 05:05:14,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 05:05:14,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 05:05:14,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 05:05:14,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 05:05:14,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 05:05:14,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 05:05:14,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 05:05:14,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 05:05:14,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 05:05:14,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 05:05:14,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 05:05:14,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 05:05:14,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 05:05:14,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 05:05:14,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 05:05:14,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 05:05:14,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 05:05:14,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 05:05:14,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 05:05:14,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 05:05:14,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 05:05:14,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 05:05:14,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 05:05:14,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 05:05:14,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 05:05:14,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 05:05:14,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 05:05:14,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 05:05:14,658 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 05:05:14,685 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 05:05:14,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 05:05:14,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 05:05:14,685 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 05:05:14,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 05:05:14,686 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 05:05:14,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 05:05:14,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 05:05:14,687 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 05:05:14,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 05:05:14,687 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 05:05:14,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 05:05:14,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 05:05:14,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 05:05:14,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 05:05:14,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 05:05:14,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 05:05:14,690 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 05:05:14,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 05:05:14,690 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 05:05:14,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 05:05:14,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 05:05:14,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 05:05:14,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 05:05:14,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:05:14,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 05:05:14,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 05:05:14,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 05:05:14,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 05:05:14,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 05:05:14,693 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 05:05:14,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 05:05:14,693 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 05:05:14,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 05:05:14,694 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 05:05:14,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 05:05:14,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 05:05:14,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 05:05:14,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 05:05:14,928 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 05:05:14,928 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 05:05:14,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:05:16,047 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 05:05:16,359 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 05:05:16,360 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:05:16,382 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1391d7f/e8e80a77f1984e5685b4e0ad1b93a59b/FLAG037618401 [2023-04-02 05:05:16,395 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1391d7f/e8e80a77f1984e5685b4e0ad1b93a59b [2023-04-02 05:05:16,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 05:05:16,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 05:05:16,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 05:05:16,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 05:05:16,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 05:05:16,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:16,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b812685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16, skipping insertion in model container [2023-04-02 05:05:16,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:16,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 05:05:16,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 05:05:16,824 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_floodmax.5.1.ufo.UNBOUNDED.pals.c[52225,52238] [2023-04-02 05:05:16,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:05:16,844 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 05:05:16,972 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_floodmax.5.1.ufo.UNBOUNDED.pals.c[52225,52238] [2023-04-02 05:05:16,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 05:05:16,993 INFO L208 MainTranslator]: Completed translation [2023-04-02 05:05:16,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16 WrapperNode [2023-04-02 05:05:16,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 05:05:16,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 05:05:16,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 05:05:16,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 05:05:17,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 05:05:17,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 05:05:17,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 05:05:17,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 05:05:17,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (1/1) ... [2023-04-02 05:05:17,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 05:05:17,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:05:17,208 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 05:05:17,232 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 05:05:17,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 05:05:17,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 05:05:17,258 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 05:05:17,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 05:05:17,258 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-04-02 05:05:17,258 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-04-02 05:05:17,259 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-04-02 05:05:17,259 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-04-02 05:05:17,259 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-04-02 05:05:17,259 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 05:05:17,259 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 05:05:17,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 05:05:17,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 05:05:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 05:05:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 05:05:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 05:05:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 05:05:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 05:05:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-02 05:05:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 05:05:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 05:05:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 05:05:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 05:05:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 05:05:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 05:05:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 05:05:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 05:05:17,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 05:05:17,470 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 05:05:17,471 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 05:05:18,817 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 05:05:18,835 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 05:05:18,836 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 05:05:18,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:05:18 BoogieIcfgContainer [2023-04-02 05:05:18,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 05:05:18,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 05:05:18,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 05:05:18,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 05:05:18,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:05:16" (1/3) ... [2023-04-02 05:05:18,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f43f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:05:18, skipping insertion in model container [2023-04-02 05:05:18,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:05:16" (2/3) ... [2023-04-02 05:05:18,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f43f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:05:18, skipping insertion in model container [2023-04-02 05:05:18,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:05:18" (3/3) ... [2023-04-02 05:05:18,851 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.1.ufo.UNBOUNDED.pals.c [2023-04-02 05:05:18,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 05:05:18,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 05:05:18,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 05:05:18,986 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;@1a10d6b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 05:05:18,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 05:05:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 687 states, 663 states have (on average 1.8506787330316743) internal successors, (1227), 665 states have internal predecessors, (1227), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-02 05:05:19,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 05:05:19,030 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:19,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:19,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:19,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash -290372436, now seen corresponding path program 1 times [2023-04-02 05:05:19,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:19,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334327509] [2023-04-02 05:05:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:19,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:05:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:05:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:05:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 05:05:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 05:05:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:05:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 05:05:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:20,628 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 05:05:20,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:20,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334327509] [2023-04-02 05:05:20,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334327509] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:20,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:20,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 05:05:20,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662642998] [2023-04-02 05:05:20,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:20,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 05:05:20,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:20,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 05:05:20,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:05:20,675 INFO L87 Difference]: Start difference. First operand has 687 states, 663 states have (on average 1.8506787330316743) internal successors, (1227), 665 states have internal predecessors, (1227), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:05:26,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:26,354 INFO L93 Difference]: Finished difference Result 859 states and 1539 transitions. [2023-04-02 05:05:26,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:05:26,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 182 [2023-04-02 05:05:26,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:26,380 INFO L225 Difference]: With dead ends: 859 [2023-04-02 05:05:26,381 INFO L226 Difference]: Without dead ends: 707 [2023-04-02 05:05:26,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:05:26,393 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 3842 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3842 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:26,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3842 Valid, 53 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 05:05:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-04-02 05:05:26,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 682. [2023-04-02 05:05:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 660 states have (on average 1.8484848484848484) internal successors, (1220), 661 states have internal predecessors, (1220), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:05:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1241 transitions. [2023-04-02 05:05:26,764 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1241 transitions. Word has length 182 [2023-04-02 05:05:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:26,765 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1241 transitions. [2023-04-02 05:05:26,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 2 states have internal predecessors, (162), 2 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:05:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1241 transitions. [2023-04-02 05:05:26,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 05:05:26,769 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:26,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:05:26,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 05:05:26,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:26,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash -643460818, now seen corresponding path program 1 times [2023-04-02 05:05:26,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:26,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905578230] [2023-04-02 05:05:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:26,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:27,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:28,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 05:05:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 05:05:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:28,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 05:05:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 05:05:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 05:05:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:28,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 05:05:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 05:05:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:28,344 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 05:05:28,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:28,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905578230] [2023-04-02 05:05:28,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905578230] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:28,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:28,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:05:28,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189748419] [2023-04-02 05:05:28,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:28,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:05:28,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:28,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:05:28,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:05:28,348 INFO L87 Difference]: Start difference. First operand 682 states and 1241 transitions. Second operand has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:37,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:05:37,407 INFO L93 Difference]: Finished difference Result 857 states and 1531 transitions. [2023-04-02 05:05:37,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 05:05:37,413 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 182 [2023-04-02 05:05:37,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:05:37,418 INFO L225 Difference]: With dead ends: 857 [2023-04-02 05:05:37,418 INFO L226 Difference]: Without dead ends: 707 [2023-04-02 05:05:37,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:05:37,427 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1740 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9182 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 9233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 9182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:05:37,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 146 Invalid, 9233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 9182 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-04-02 05:05:37,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-04-02 05:05:37,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 682. [2023-04-02 05:05:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 660 states have (on average 1.7878787878787878) internal successors, (1180), 661 states have internal predecessors, (1180), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 05:05:37,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1201 transitions. [2023-04-02 05:05:37,621 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1201 transitions. Word has length 182 [2023-04-02 05:05:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:05:37,621 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1201 transitions. [2023-04-02 05:05:37,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 3 states have call successors, (11), 8 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 05:05:37,622 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1201 transitions. [2023-04-02 05:05:37,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-02 05:05:37,627 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:05:37,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:05:37,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:05:37,627 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:05:37,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:05:37,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2049318734, now seen corresponding path program 1 times [2023-04-02 05:05:37,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:05:37,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527003190] [2023-04-02 05:05:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:05:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:05:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:05:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:05:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:05:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:05:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 05:05:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:05:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:05:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 05:05:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 05:05:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:05:39,620 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 05:05:39,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:05:39,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527003190] [2023-04-02 05:05:39,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527003190] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:05:39,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:05:39,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 05:05:39,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877131749] [2023-04-02 05:05:39,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:05:39,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 05:05:39,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:05:39,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 05:05:39,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 05:05:39,626 INFO L87 Difference]: Start difference. First operand 682 states and 1201 transitions. Second operand has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 13 states have internal predecessors, (201), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:06:14,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:14,630 INFO L93 Difference]: Finished difference Result 3200 states and 5448 transitions. [2023-04-02 05:06:14,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2023-04-02 05:06:14,633 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 13 states have internal predecessors, (201), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 221 [2023-04-02 05:06:14,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:14,649 INFO L225 Difference]: With dead ends: 3200 [2023-04-02 05:06:14,649 INFO L226 Difference]: Without dead ends: 3056 [2023-04-02 05:06:14,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6491 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=2884, Invalid=15206, Unknown=0, NotChecked=0, Total=18090 [2023-04-02 05:06:14,655 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 9593 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 17045 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9606 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 17384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 17045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:14,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9606 Valid, 284 Invalid, 17384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [339 Valid, 17045 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2023-04-02 05:06:14,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2023-04-02 05:06:14,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 1396. [2023-04-02 05:06:14,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1294 states have (on average 1.7635239567233385) internal successors, (2282), 1305 states have internal predecessors, (2282), 46 states have call successors, (46), 46 states have call predecessors, (46), 55 states have return successors, (79), 45 states have call predecessors, (79), 45 states have call successors, (79) [2023-04-02 05:06:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 2407 transitions. [2023-04-02 05:06:14,996 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 2407 transitions. Word has length 221 [2023-04-02 05:06:14,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:14,997 INFO L495 AbstractCegarLoop]: Abstraction has 1396 states and 2407 transitions. [2023-04-02 05:06:14,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 13 states have internal predecessors, (201), 3 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:06:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 2407 transitions. [2023-04-02 05:06:15,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-02 05:06:15,002 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:15,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:15,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:06:15,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:15,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1563738458, now seen corresponding path program 1 times [2023-04-02 05:06:15,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:15,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343732371] [2023-04-02 05:06:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:15,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:15,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:15,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:06:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:06:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 05:06:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:16,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:06:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:16,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:06:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:16,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 05:06:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:16,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 05:06:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:16,352 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 05:06:16,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:16,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343732371] [2023-04-02 05:06:16,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343732371] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:16,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:16,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:06:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955867471] [2023-04-02 05:06:16,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:16,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:06:16,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:16,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:06:16,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:06:16,355 INFO L87 Difference]: Start difference. First operand 1396 states and 2407 transitions. Second operand has 12 states, 12 states have (on average 16.833333333333332) internal successors, (202), 6 states have internal predecessors, (202), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:06:29,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:29,437 INFO L93 Difference]: Finished difference Result 3888 states and 6573 transitions. [2023-04-02 05:06:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:06:29,439 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 16.833333333333332) internal successors, (202), 6 states have internal predecessors, (202), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 222 [2023-04-02 05:06:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:29,452 INFO L225 Difference]: With dead ends: 3888 [2023-04-02 05:06:29,452 INFO L226 Difference]: Without dead ends: 3030 [2023-04-02 05:06:29,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:06:29,456 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 6725 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 7246 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6737 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 7358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 7246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:29,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6737 Valid, 139 Invalid, 7358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 7246 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-04-02 05:06:29,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2023-04-02 05:06:29,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2641. [2023-04-02 05:06:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2641 states, 2393 states have (on average 1.744671959882992) internal successors, (4175), 2424 states have internal predecessors, (4175), 109 states have call successors, (109), 109 states have call predecessors, (109), 138 states have return successors, (210), 108 states have call predecessors, (210), 108 states have call successors, (210) [2023-04-02 05:06:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2641 states to 2641 states and 4494 transitions. [2023-04-02 05:06:29,942 INFO L78 Accepts]: Start accepts. Automaton has 2641 states and 4494 transitions. Word has length 222 [2023-04-02 05:06:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:29,943 INFO L495 AbstractCegarLoop]: Abstraction has 2641 states and 4494 transitions. [2023-04-02 05:06:29,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.833333333333332) internal successors, (202), 6 states have internal predecessors, (202), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:06:29,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2641 states and 4494 transitions. [2023-04-02 05:06:29,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-04-02 05:06:29,948 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:29,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:29,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:06:29,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:29,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:29,949 INFO L85 PathProgramCache]: Analyzing trace with hash -656033147, now seen corresponding path program 1 times [2023-04-02 05:06:29,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:29,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208269224] [2023-04-02 05:06:29,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:29,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:30,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:06:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:06:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 05:06:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:31,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:06:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:31,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:06:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:31,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 05:06:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:31,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 05:06:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:31,197 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 05:06:31,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:31,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208269224] [2023-04-02 05:06:31,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208269224] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:31,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:31,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:06:31,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102726057] [2023-04-02 05:06:31,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:31,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:06:31,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:31,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:06:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:06:31,202 INFO L87 Difference]: Start difference. First operand 2641 states and 4494 transitions. Second operand has 12 states, 12 states have (on average 16.916666666666668) internal successors, (203), 6 states have internal predecessors, (203), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:06:44,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:06:44,203 INFO L93 Difference]: Finished difference Result 14944 states and 25051 transitions. [2023-04-02 05:06:44,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:06:44,203 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 16.916666666666668) internal successors, (203), 6 states have internal predecessors, (203), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 223 [2023-04-02 05:06:44,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:06:44,255 INFO L225 Difference]: With dead ends: 14944 [2023-04-02 05:06:44,255 INFO L226 Difference]: Without dead ends: 12841 [2023-04-02 05:06:44,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:06:44,269 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5685 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6360 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5697 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 6464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 6360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:06:44,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5697 Valid, 101 Invalid, 6464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 6360 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 05:06:44,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12841 states. [2023-04-02 05:06:45,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12841 to 10928. [2023-04-02 05:06:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10928 states, 9705 states have (on average 1.727047913446677) internal successors, (16761), 9871 states have internal predecessors, (16761), 529 states have call successors, (529), 529 states have call predecessors, (529), 693 states have return successors, (1119), 528 states have call predecessors, (1119), 528 states have call successors, (1119) [2023-04-02 05:06:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10928 states to 10928 states and 18409 transitions. [2023-04-02 05:06:45,918 INFO L78 Accepts]: Start accepts. Automaton has 10928 states and 18409 transitions. Word has length 223 [2023-04-02 05:06:45,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:06:45,918 INFO L495 AbstractCegarLoop]: Abstraction has 10928 states and 18409 transitions. [2023-04-02 05:06:45,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.916666666666668) internal successors, (203), 6 states have internal predecessors, (203), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:06:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 10928 states and 18409 transitions. [2023-04-02 05:06:45,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-04-02 05:06:45,924 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:06:45,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:06:45,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:06:45,924 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:06:45,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:06:45,925 INFO L85 PathProgramCache]: Analyzing trace with hash -801161103, now seen corresponding path program 1 times [2023-04-02 05:06:45,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:06:45,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702184741] [2023-04-02 05:06:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:06:45,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:06:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:46,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:06:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:06:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:46,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:06:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:47,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:06:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:47,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 05:06:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:47,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:06:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:47,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:06:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 05:06:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:47,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 05:06:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:06:47,177 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 05:06:47,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:06:47,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702184741] [2023-04-02 05:06:47,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702184741] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:06:47,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:06:47,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:06:47,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807840730] [2023-04-02 05:06:47,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:06:47,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:06:47,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:06:47,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:06:47,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:06:47,180 INFO L87 Difference]: Start difference. First operand 10928 states and 18409 transitions. Second operand has 12 states, 12 states have (on average 17.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:07:05,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:05,174 INFO L93 Difference]: Finished difference Result 72118 states and 120577 transitions. [2023-04-02 05:07:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:07:05,175 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 224 [2023-04-02 05:07:05,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:05,453 INFO L225 Difference]: With dead ends: 72118 [2023-04-02 05:07:05,454 INFO L226 Difference]: Without dead ends: 61728 [2023-04-02 05:07:05,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:07:05,504 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 5996 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 7244 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6008 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 7344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 7244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:05,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6008 Valid, 131 Invalid, 7344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 7244 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 05:07:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61728 states. [2023-04-02 05:07:12,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61728 to 52195. [2023-04-02 05:07:12,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52195 states, 46037 states have (on average 1.7179877055411952) internal successors, (79091), 46938 states have internal predecessors, (79091), 2629 states have call successors, (2629), 2629 states have call predecessors, (2629), 3528 states have return successors, (5976), 2628 states have call predecessors, (5976), 2628 states have call successors, (5976) [2023-04-02 05:07:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52195 states to 52195 states and 87696 transitions. [2023-04-02 05:07:12,498 INFO L78 Accepts]: Start accepts. Automaton has 52195 states and 87696 transitions. Word has length 224 [2023-04-02 05:07:12,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:07:12,499 INFO L495 AbstractCegarLoop]: Abstraction has 52195 states and 87696 transitions. [2023-04-02 05:07:12,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:07:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 52195 states and 87696 transitions. [2023-04-02 05:07:12,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-04-02 05:07:12,506 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:07:12,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:07:12,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 05:07:12,507 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:07:12,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:07:12,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1056845380, now seen corresponding path program 1 times [2023-04-02 05:07:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:07:12,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168160683] [2023-04-02 05:07:12,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:07:12,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:07:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:07:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:07:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:07:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:07:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 05:07:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:07:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:07:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 05:07:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 05:07:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:07:13,690 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 05:07:13,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:07:13,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168160683] [2023-04-02 05:07:13,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168160683] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:07:13,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:07:13,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:07:13,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161020514] [2023-04-02 05:07:13,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:07:13,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:07:13,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:07:13,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:07:13,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:07:13,692 INFO L87 Difference]: Start difference. First operand 52195 states and 87696 transitions. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:07:52,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:07:52,598 INFO L93 Difference]: Finished difference Result 357508 states and 597391 transitions. [2023-04-02 05:07:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 05:07:52,605 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 225 [2023-04-02 05:07:52,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:07:54,223 INFO L225 Difference]: With dead ends: 357508 [2023-04-02 05:07:54,223 INFO L226 Difference]: Without dead ends: 305851 [2023-04-02 05:07:54,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 05:07:54,355 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 9025 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 6923 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9037 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 7073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 6923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:07:54,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9037 Valid, 139 Invalid, 7073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [150 Valid, 6923 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 05:07:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305851 states. [2023-04-02 05:08:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305851 to 258218. [2023-04-02 05:08:23,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258218 states, 227085 states have (on average 1.7123323865512914) internal successors, (388845), 231961 states have internal predecessors, (388845), 13129 states have call successors, (13129), 13129 states have call predecessors, (13129), 18003 states have return successors, (31797), 13128 states have call predecessors, (31797), 13128 states have call successors, (31797) [2023-04-02 05:08:24,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258218 states to 258218 states and 433771 transitions. [2023-04-02 05:08:24,868 INFO L78 Accepts]: Start accepts. Automaton has 258218 states and 433771 transitions. Word has length 225 [2023-04-02 05:08:24,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:08:24,869 INFO L495 AbstractCegarLoop]: Abstraction has 258218 states and 433771 transitions. [2023-04-02 05:08:24,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 05:08:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 258218 states and 433771 transitions. [2023-04-02 05:08:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-04-02 05:08:24,877 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:08:24,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:08:24,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:08:24,878 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:08:24,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:08:24,878 INFO L85 PathProgramCache]: Analyzing trace with hash -444808312, now seen corresponding path program 1 times [2023-04-02 05:08:24,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:08:24,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981469348] [2023-04-02 05:08:24,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:08:24,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:08:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:25,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:08:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:08:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 05:08:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 05:08:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 05:08:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 05:08:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-02 05:08:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 05:08:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 05:08:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:08:26,291 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 05:08:26,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:08:26,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981469348] [2023-04-02 05:08:26,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981469348] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:08:26,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:08:26,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:08:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646137221] [2023-04-02 05:08:26,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:08:26,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:08:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:08:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:08:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:08:26,293 INFO L87 Difference]: Start difference. First operand 258218 states and 433771 transitions. Second operand has 12 states, 12 states have (on average 17.166666666666668) internal successors, (206), 6 states have internal predecessors, (206), 3 states have call successors, (11), 8 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9)