/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.4.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:29:23,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:29:23,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:29:23,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:29:23,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:29:23,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:29:23,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:29:23,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:29:23,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:29:23,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:29:23,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:29:23,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:29:23,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:29:23,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:29:23,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:29:23,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:29:23,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:29:23,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:29:23,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:29:23,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:29:23,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:29:23,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:29:23,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:29:23,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:29:23,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:29:23,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:29:23,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:29:23,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:29:23,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:29:23,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:29:23,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:29:23,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:29:23,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:29:23,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:29:23,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:29:23,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:29:23,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:29:23,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:29:23,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:29:23,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:29:23,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:29:23,691 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 [2023-03-31 01:29:23,717 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:29:23,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:29:23,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:29:23,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:29:23,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:29:23,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:29:23,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:29:23,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:29:23,718 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:29:23,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:29:23,718 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:29:23,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:29:23,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:29:23,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:29:23,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:29:23,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:29:23,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:29:23,720 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:29:23,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:29:23,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:29:23,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:29:23,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:29:23,926 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:29:23,927 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:29:23,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c [2023-03-31 01:29:25,119 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:29:25,388 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:29:25,389 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c [2023-03-31 01:29:25,398 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a37822bd/40e52998d1cb4f27b3e0806fd6602660/FLAG3ddc31172 [2023-03-31 01:29:25,410 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a37822bd/40e52998d1cb4f27b3e0806fd6602660 [2023-03-31 01:29:25,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:29:25,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:29:25,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:29:25,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:29:25,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:29:25,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f4c46e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25, skipping insertion in model container [2023-03-31 01:29:25,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:29:25,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:29:25,716 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.4.3.ufo.UNBOUNDED.pals.c[28368,28381] [2023-03-31 01:29:25,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:29:25,730 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:29:25,820 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.4.3.ufo.UNBOUNDED.pals.c[28368,28381] [2023-03-31 01:29:25,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:29:25,837 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:29:25,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25 WrapperNode [2023-03-31 01:29:25,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:29:25,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:29:25,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:29:25,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:29:25,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,944 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:29:25,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:29:25,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:29:25,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:29:25,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (1/1) ... [2023-03-31 01:29:25,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:29:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:29:26,002 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) [2023-03-31 01:29:26,042 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 [2023-03-31 01:29:26,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:29:26,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:29:26,072 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:29:26,072 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:29:26,072 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:29:26,072 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:29:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:29:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:29:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:29:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:29:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:29:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:29:26,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:29:26,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:29:26,073 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:29:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:29:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:29:26,257 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:29:26,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:29:26,892 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:29:26,903 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:29:26,903 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:29:26,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:29:26 BoogieIcfgContainer [2023-03-31 01:29:26,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:29:26,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:29:26,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:29:26,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:29:26,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:29:25" (1/3) ... [2023-03-31 01:29:26,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d166c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:29:26, skipping insertion in model container [2023-03-31 01:29:26,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:29:25" (2/3) ... [2023-03-31 01:29:26,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d166c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:29:26, skipping insertion in model container [2023-03-31 01:29:26,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:29:26" (3/3) ... [2023-03-31 01:29:26,921 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c [2023-03-31 01:29:26,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:29:26,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:29:26,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:29:26,982 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;@497431c7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:29:26,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:29:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 295 states have (on average 1.8) internal successors, (531), 297 states have internal predecessors, (531), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-03-31 01:29:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-03-31 01:29:27,007 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:27,008 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] [2023-03-31 01:29:27,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:27,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1254193429, now seen corresponding path program 1 times [2023-03-31 01:29:27,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:27,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636547961] [2023-03-31 01:29:27,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:27,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:29:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 01:29:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:29:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 01:29:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-03-31 01:29:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-03-31 01:29:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:29:27,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:27,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636547961] [2023-03-31 01:29:27,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636547961] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:27,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:27,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 01:29:27,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644429994] [2023-03-31 01:29:27,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:27,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 01:29:27,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 01:29:27,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-03-31 01:29:27,809 INFO L87 Difference]: Start difference. First operand has 317 states, 295 states have (on average 1.8) internal successors, (531), 297 states have internal predecessors, (531), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:29:29,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:29,501 INFO L93 Difference]: Finished difference Result 444 states and 759 transitions. [2023-03-31 01:29:29,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:29:29,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 104 [2023-03-31 01:29:29,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:29,510 INFO L225 Difference]: With dead ends: 444 [2023-03-31 01:29:29,510 INFO L226 Difference]: Without dead ends: 328 [2023-03-31 01:29:29,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:29:29,515 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1162 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:29,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 46 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-03-31 01:29:29,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-03-31 01:29:29,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 312. [2023-03-31 01:29:29,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 292 states have (on average 1.7945205479452055) internal successors, (524), 293 states have internal predecessors, (524), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-03-31 01:29:29,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 543 transitions. [2023-03-31 01:29:29,603 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 543 transitions. Word has length 104 [2023-03-31 01:29:29,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:29,604 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 543 transitions. [2023-03-31 01:29:29,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (10), 7 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:29:29,604 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 543 transitions. [2023-03-31 01:29:29,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-03-31 01:29:29,606 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:29,606 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] [2023-03-31 01:29:29,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:29:29,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:29,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:29,606 INFO L85 PathProgramCache]: Analyzing trace with hash -830546707, now seen corresponding path program 1 times [2023-03-31 01:29:29,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:29,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758569448] [2023-03-31 01:29:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:29,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:29:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 01:29:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-03-31 01:29:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 01:29:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-03-31 01:29:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-03-31 01:29:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:29:30,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:30,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758569448] [2023-03-31 01:29:30,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758569448] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:30,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:30,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 01:29:30,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107756159] [2023-03-31 01:29:30,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:30,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:29:30,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:30,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:29:30,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:29:30,271 INFO L87 Difference]: Start difference. First operand 312 states and 543 transitions. Second operand has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-03-31 01:29:33,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:33,575 INFO L93 Difference]: Finished difference Result 442 states and 751 transitions. [2023-03-31 01:29:33,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:29:33,576 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 104 [2023-03-31 01:29:33,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:33,578 INFO L225 Difference]: With dead ends: 442 [2023-03-31 01:29:33,578 INFO L226 Difference]: Without dead ends: 328 [2023-03-31 01:29:33,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-03-31 01:29:33,579 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 1589 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 3979 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:33,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 132 Invalid, 4051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 3979 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-03-31 01:29:33,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-03-31 01:29:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 312. [2023-03-31 01:29:33,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 292 states have (on average 1.6506849315068493) internal successors, (482), 293 states have internal predecessors, (482), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-03-31 01:29:33,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 501 transitions. [2023-03-31 01:29:33,678 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 501 transitions. Word has length 104 [2023-03-31 01:29:33,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:33,678 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 501 transitions. [2023-03-31 01:29:33,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.166666666666667) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (10), 7 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-03-31 01:29:33,679 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 501 transitions. [2023-03-31 01:29:33,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-03-31 01:29:33,679 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:33,680 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] [2023-03-31 01:29:33,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:29:33,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:33,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:33,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1981225145, now seen corresponding path program 1 times [2023-03-31 01:29:33,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:33,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667722902] [2023-03-31 01:29:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:33,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 01:29:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:29:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:29:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:29:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:29:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:29:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:29:34,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:34,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667722902] [2023-03-31 01:29:34,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667722902] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:34,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:34,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-03-31 01:29:34,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753710692] [2023-03-31 01:29:34,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:34,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:29:34,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:34,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:29:34,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:29:34,736 INFO L87 Difference]: Start difference. First operand 312 states and 501 transitions. Second operand has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:29:45,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:45,519 INFO L93 Difference]: Finished difference Result 1785 states and 2907 transitions. [2023-03-31 01:29:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-03-31 01:29:45,520 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 145 [2023-03-31 01:29:45,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:45,542 INFO L225 Difference]: With dead ends: 1785 [2023-03-31 01:29:45,542 INFO L226 Difference]: Without dead ends: 1677 [2023-03-31 01:29:45,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2975 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1562, Invalid=7180, Unknown=0, NotChecked=0, Total=8742 [2023-03-31 01:29:45,566 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 8231 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 5136 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8242 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 5520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 5136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:45,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8242 Valid, 161 Invalid, 5520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 5136 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-03-31 01:29:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2023-03-31 01:29:45,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 842. [2023-03-31 01:29:45,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 754 states have (on average 1.676392572944297) internal successors, (1264), 763 states have internal predecessors, (1264), 40 states have call successors, (40), 40 states have call predecessors, (40), 47 states have return successors, (67), 39 states have call predecessors, (67), 39 states have call successors, (67) [2023-03-31 01:29:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1371 transitions. [2023-03-31 01:29:45,676 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1371 transitions. Word has length 145 [2023-03-31 01:29:45,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:45,676 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1371 transitions. [2023-03-31 01:29:45,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 3 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:29:45,676 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1371 transitions. [2023-03-31 01:29:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-03-31 01:29:45,678 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:45,679 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] [2023-03-31 01:29:45,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:29:45,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:45,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:45,679 INFO L85 PathProgramCache]: Analyzing trace with hash -766073659, now seen corresponding path program 1 times [2023-03-31 01:29:45,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:45,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110387831] [2023-03-31 01:29:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:45,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 01:29:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:29:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:29:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:29:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:29:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:29:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:29:46,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:46,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110387831] [2023-03-31 01:29:46,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110387831] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:46,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:46,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:29:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744581070] [2023-03-31 01:29:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:46,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:29:46,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:29:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:29:46,279 INFO L87 Difference]: Start difference. First operand 842 states and 1371 transitions. Second operand has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:29:52,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:52,064 INFO L93 Difference]: Finished difference Result 2653 states and 4300 transitions. [2023-03-31 01:29:52,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-03-31 01:29:52,065 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 146 [2023-03-31 01:29:52,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:52,071 INFO L225 Difference]: With dead ends: 2653 [2023-03-31 01:29:52,071 INFO L226 Difference]: Without dead ends: 2015 [2023-03-31 01:29:52,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 01:29:52,073 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2551 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 3076 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2561 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:52,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2561 Valid, 91 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3076 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-03-31 01:29:52,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2023-03-31 01:29:52,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1761. [2023-03-31 01:29:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1548 states have (on average 1.6724806201550388) internal successors, (2589), 1574 states have internal predecessors, (2589), 94 states have call successors, (94), 94 states have call predecessors, (94), 118 states have return successors, (180), 93 states have call predecessors, (180), 93 states have call successors, (180) [2023-03-31 01:29:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2863 transitions. [2023-03-31 01:29:52,240 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 2863 transitions. Word has length 146 [2023-03-31 01:29:52,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:52,240 INFO L495 AbstractCegarLoop]: Abstraction has 1761 states and 2863 transitions. [2023-03-31 01:29:52,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:29:52,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 2863 transitions. [2023-03-31 01:29:52,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-03-31 01:29:52,242 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:52,242 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] [2023-03-31 01:29:52,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:29:52,242 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:52,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:52,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1802768194, now seen corresponding path program 1 times [2023-03-31 01:29:52,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:52,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968631607] [2023-03-31 01:29:52,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:52,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 01:29:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:29:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:29:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:29:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:29:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:29:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:29:52,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:52,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968631607] [2023-03-31 01:29:52,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968631607] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:52,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:52,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:29:52,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882595385] [2023-03-31 01:29:52,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:52,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:29:52,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:52,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:29:52,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:29:52,929 INFO L87 Difference]: Start difference. First operand 1761 states and 2863 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:30:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:30:00,176 INFO L93 Difference]: Finished difference Result 10671 states and 17259 transitions. [2023-03-31 01:30:00,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-03-31 01:30:00,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 147 [2023-03-31 01:30:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:30:00,221 INFO L225 Difference]: With dead ends: 10671 [2023-03-31 01:30:00,221 INFO L226 Difference]: Without dead ends: 9114 [2023-03-31 01:30:00,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 01:30:00,234 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2060 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 3789 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 3849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:30:00,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 118 Invalid, 3849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3789 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-03-31 01:30:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2023-03-31 01:30:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 7876. [2023-03-31 01:30:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7876 states, 6828 states have (on average 1.6682776801405976) internal successors, (11391), 6969 states have internal predecessors, (11391), 454 states have call successors, (454), 454 states have call predecessors, (454), 593 states have return successors, (969), 453 states have call predecessors, (969), 453 states have call successors, (969) [2023-03-31 01:30:01,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7876 states to 7876 states and 12814 transitions. [2023-03-31 01:30:01,087 INFO L78 Accepts]: Start accepts. Automaton has 7876 states and 12814 transitions. Word has length 147 [2023-03-31 01:30:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:30:01,088 INFO L495 AbstractCegarLoop]: Abstraction has 7876 states and 12814 transitions. [2023-03-31 01:30:01,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:30:01,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7876 states and 12814 transitions. [2023-03-31 01:30:01,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-03-31 01:30:01,091 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:30:01,091 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] [2023-03-31 01:30:01,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:30:01,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:30:01,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:30:01,092 INFO L85 PathProgramCache]: Analyzing trace with hash 367754652, now seen corresponding path program 1 times [2023-03-31 01:30:01,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:30:01,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418915039] [2023-03-31 01:30:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:30:01,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:30:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:30:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:30:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 01:30:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:30:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:30:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:30:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:30:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:30:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:30:01,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:30:01,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418915039] [2023-03-31 01:30:01,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418915039] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:30:01,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:30:01,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:30:01,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160461897] [2023-03-31 01:30:01,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:30:01,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:30:01,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:30:01,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:30:01,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:30:01,720 INFO L87 Difference]: Start difference. First operand 7876 states and 12814 transitions. Second operand has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:30:10,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:30:10,242 INFO L93 Difference]: Finished difference Result 52137 states and 84249 transitions. [2023-03-31 01:30:10,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-03-31 01:30:10,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 148 [2023-03-31 01:30:10,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:30:10,428 INFO L225 Difference]: With dead ends: 52137 [2023-03-31 01:30:10,429 INFO L226 Difference]: Without dead ends: 44465 [2023-03-31 01:30:10,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 01:30:10,455 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 3650 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 3539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:30:10,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 125 Invalid, 3539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 3420 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-03-31 01:30:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44465 states. [2023-03-31 01:30:14,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44465 to 38307. [2023-03-31 01:30:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38307 states, 33024 states have (on average 1.6608829941860466) internal successors, (54849), 33800 states have internal predecessors, (54849), 2254 states have call successors, (2254), 2254 states have call predecessors, (2254), 3028 states have return successors, (5226), 2253 states have call predecessors, (5226), 2253 states have call successors, (5226) [2023-03-31 01:30:14,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38307 states to 38307 states and 62329 transitions. [2023-03-31 01:30:14,477 INFO L78 Accepts]: Start accepts. Automaton has 38307 states and 62329 transitions. Word has length 148 [2023-03-31 01:30:14,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:30:14,477 INFO L495 AbstractCegarLoop]: Abstraction has 38307 states and 62329 transitions. [2023-03-31 01:30:14,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:30:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 38307 states and 62329 transitions. [2023-03-31 01:30:14,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-03-31 01:30:14,480 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:30:14,480 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] [2023-03-31 01:30:14,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:30:14,481 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:30:14,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:30:14,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1117198795, now seen corresponding path program 1 times [2023-03-31 01:30:14,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:30:14,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364020110] [2023-03-31 01:30:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:30:14,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:30:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:30:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:14,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:30:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:14,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 01:30:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:14,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:30:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-03-31 01:30:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:14,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:30:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:30:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 01:30:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:30:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:30:15,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:30:15,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364020110] [2023-03-31 01:30:15,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364020110] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:30:15,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:30:15,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:30:15,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867592022] [2023-03-31 01:30:15,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:30:15,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:30:15,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:30:15,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:30:15,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:30:15,005 INFO L87 Difference]: Start difference. First operand 38307 states and 62329 transitions. Second operand has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (10), 7 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8)