/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_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:36:26,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:36:26,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:36:26,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:36:26,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:36:26,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:36:26,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:36:26,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:36:26,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:36:26,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:36:26,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:36:26,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:36:26,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:36:26,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:36:26,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:36:26,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:36:26,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:36:26,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:36:26,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:36:26,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:36:26,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:36:26,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:36:26,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:36:26,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:36:26,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 01:36:26,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:36:26,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:36:26,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:36:26,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:36:26,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:36:26,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:36:26,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:36:26,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:36:26,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:36:26,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:36:26,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:36:26,338 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 01:36:26,359 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:36:26,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:36:26,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:36:26,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:36:26,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:36:26,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:36:26,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:36:26,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:36:26,361 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:36:26,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:36:26,361 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:36:26,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:36:26,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:36:26,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:36:26,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:36:26,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:36:26,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:36:26,362 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:36:26,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:36:26,363 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:36:26,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:36:26,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:36:26,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:36:26,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:36:26,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:36:26,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:36:26,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:36:26,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:36:26,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:36:26,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:36:26,364 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:36:26,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:36:26,365 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:36:26,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:36:26,365 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:36:26,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:36:26,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:36:26,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:36:26,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:36:26,619 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:36:26,619 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:36:26,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2023-03-31 01:36:27,797 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:36:28,077 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:36:28,077 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2023-03-31 01:36:28,090 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c5d7e14/b53dfc749c034f5abbd1c52dceb13db3/FLAG7dcd519dd [2023-03-31 01:36:28,101 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0c5d7e14/b53dfc749c034f5abbd1c52dceb13db3 [2023-03-31 01:36:28,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:36:28,105 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:36:28,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:36:28,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:36:28,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:36:28,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2a10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28, skipping insertion in model container [2023-03-31 01:36:28,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:36:28,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:36:28,474 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_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c[65471,65484] [2023-03-31 01:36:28,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:36:28,491 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:36:28,596 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_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c[65471,65484] [2023-03-31 01:36:28,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:36:28,626 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:36:28,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28 WrapperNode [2023-03-31 01:36:28,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:36:28,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:36:28,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:36:28,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:36:28,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:36:28,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:36:28,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:36:28,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:36:28,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (1/1) ... [2023-03-31 01:36:28,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:36:28,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:36:28,847 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 01:36:28,868 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 01:36:28,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:36:28,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:36:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:36:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 01:36:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:36:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:36:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:36:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2023-03-31 01:36:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2023-03-31 01:36:28,886 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:36:28,887 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:36:28,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:36:28,887 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:36:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:36:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:36:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:36:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:36:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:36:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:36:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:36:28,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:36:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:36:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:36:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:36:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:36:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:36:28,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:36:29,059 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:36:29,061 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:36:30,547 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:36:30,557 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:36:30,557 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:36:30,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:36:30 BoogieIcfgContainer [2023-03-31 01:36:30,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:36:30,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:36:30,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:36:30,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:36:30,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:36:28" (1/3) ... [2023-03-31 01:36:30,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4347450c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:36:30, skipping insertion in model container [2023-03-31 01:36:30,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:36:28" (2/3) ... [2023-03-31 01:36:30,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4347450c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:36:30, skipping insertion in model container [2023-03-31 01:36:30,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:36:30" (3/3) ... [2023-03-31 01:36:30,566 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2023-03-31 01:36:30,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:36:30,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:36:30,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:36:30,641 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;@763ffc02, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:36:30,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:36:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 733 states, 709 states have (on average 1.851904090267983) internal successors, (1313), 710 states have internal predecessors, (1313), 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) [2023-03-31 01:36:30,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-03-31 01:36:30,670 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:36:30,673 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] [2023-03-31 01:36:30,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:36:30,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:36:30,680 INFO L85 PathProgramCache]: Analyzing trace with hash -625154658, now seen corresponding path program 1 times [2023-03-31 01:36:30,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:36:30,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729052417] [2023-03-31 01:36:30,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:36:30,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:36:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:36:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:36:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 01:36:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-03-31 01:36:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-03-31 01:36:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-03-31 01:36:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-03-31 01:36:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-03-31 01:36:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-03-31 01:36:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:32,361 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 01:36:32,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:36:32,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729052417] [2023-03-31 01:36:32,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729052417] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:36:32,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:36:32,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:36:32,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017593220] [2023-03-31 01:36:32,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:36:32,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:36:32,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:36:32,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:36:32,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:36:32,396 INFO L87 Difference]: Start difference. First operand has 733 states, 709 states have (on average 1.851904090267983) internal successors, (1313), 710 states have internal predecessors, (1313), 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 20.875) internal successors, (167), 2 states have internal predecessors, (167), 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) [2023-03-31 01:36:38,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:36:38,129 INFO L93 Difference]: Finished difference Result 941 states and 1690 transitions. [2023-03-31 01:36:38,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 01:36:38,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 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 187 [2023-03-31 01:36:38,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:36:38,165 INFO L225 Difference]: With dead ends: 941 [2023-03-31 01:36:38,166 INFO L226 Difference]: Without dead ends: 763 [2023-03-31 01:36:38,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:36:38,180 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5448 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5448 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:36:38,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5448 Valid, 89 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-03-31 01:36:38,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-03-31 01:36:38,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 728. [2023-03-31 01:36:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 706 states have (on average 1.8498583569405098) internal successors, (1306), 706 states have internal predecessors, (1306), 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) [2023-03-31 01:36:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1327 transitions. [2023-03-31 01:36:38,527 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1327 transitions. Word has length 187 [2023-03-31 01:36:38,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:36:38,528 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 1327 transitions. [2023-03-31 01:36:38,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 2 states have internal predecessors, (167), 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) [2023-03-31 01:36:38,528 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1327 transitions. [2023-03-31 01:36:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-03-31 01:36:38,538 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:36:38,539 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] [2023-03-31 01:36:38,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:36:38,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:36:38,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:36:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash 913185372, now seen corresponding path program 1 times [2023-03-31 01:36:38,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:36:38,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317259928] [2023-03-31 01:36:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:36:38,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:36:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:39,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:36:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:36:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 01:36:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:40,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-03-31 01:36:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-03-31 01:36:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:40,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-03-31 01:36:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-03-31 01:36:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-03-31 01:36:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-03-31 01:36:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:40,257 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 01:36:40,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:36:40,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317259928] [2023-03-31 01:36:40,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317259928] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:36:40,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:36:40,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 01:36:40,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755293120] [2023-03-31 01:36:40,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:36:40,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 01:36:40,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:36:40,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 01:36:40,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:36:40,262 INFO L87 Difference]: Start difference. First operand 728 states and 1327 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 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) [2023-03-31 01:36:49,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:36:49,567 INFO L93 Difference]: Finished difference Result 945 states and 1696 transitions. [2023-03-31 01:36:49,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-31 01:36:49,568 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 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 187 [2023-03-31 01:36:49,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:36:49,573 INFO L225 Difference]: With dead ends: 945 [2023-03-31 01:36:49,573 INFO L226 Difference]: Without dead ends: 774 [2023-03-31 01:36:49,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:36:49,575 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 7771 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9368 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7778 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 9541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 9368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:36:49,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7778 Valid, 135 Invalid, 9541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [173 Valid, 9368 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-03-31 01:36:49,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-03-31 01:36:49,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 728. [2023-03-31 01:36:49,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 706 states have (on average 1.7577903682719547) internal successors, (1241), 706 states have internal predecessors, (1241), 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) [2023-03-31 01:36:49,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1262 transitions. [2023-03-31 01:36:49,761 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1262 transitions. Word has length 187 [2023-03-31 01:36:49,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:36:49,762 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 1262 transitions. [2023-03-31 01:36:49,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 7 states have internal predecessors, (167), 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) [2023-03-31 01:36:49,762 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1262 transitions. [2023-03-31 01:36:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-03-31 01:36:49,765 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:36:49,766 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, 1, 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 01:36:49,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:36:49,766 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:36:49,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:36:49,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1978499002, now seen corresponding path program 1 times [2023-03-31 01:36:49,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:36:49,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046455561] [2023-03-31 01:36:49,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:36:49,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:36:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:36:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:36:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-03-31 01:36:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-03-31 01:36:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-03-31 01:36:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-03-31 01:36:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-03-31 01:36:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-03-31 01:36:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-03-31 01:36:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:50,939 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 01:36:50,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:36:50,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046455561] [2023-03-31 01:36:50,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046455561] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:36:50,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:36:50,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:36:50,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281537884] [2023-03-31 01:36:50,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:36:50,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:36:50,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:36:50,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:36:50,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:36:50,945 INFO L87 Difference]: Start difference. First operand 728 states and 1262 transitions. Second operand has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 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) [2023-03-31 01:36:58,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:36:58,773 INFO L93 Difference]: Finished difference Result 1125 states and 1942 transitions. [2023-03-31 01:36:58,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-03-31 01:36:58,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 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 251 [2023-03-31 01:36:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:36:58,780 INFO L225 Difference]: With dead ends: 1125 [2023-03-31 01:36:58,780 INFO L226 Difference]: Without dead ends: 960 [2023-03-31 01:36:58,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:36:58,783 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 10667 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 3948 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10673 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 4079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 3948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:36:58,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10673 Valid, 76 Invalid, 4079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 3948 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-03-31 01:36:58,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-03-31 01:36:58,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 882. [2023-03-31 01:36:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 845 states have (on average 1.7491124260355029) internal successors, (1478), 846 states have internal predecessors, (1478), 18 states have call successors, (18), 18 states have call predecessors, (18), 18 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2023-03-31 01:36:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1515 transitions. [2023-03-31 01:36:58,986 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1515 transitions. Word has length 251 [2023-03-31 01:36:58,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:36:58,987 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1515 transitions. [2023-03-31 01:36:58,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.0) internal successors, (231), 5 states have internal predecessors, (231), 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) [2023-03-31 01:36:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1515 transitions. [2023-03-31 01:36:58,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-03-31 01:36:58,992 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:36:58,993 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, 1, 1, 1, 1, 1, 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 01:36:58,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:36:58,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:36:58,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:36:58,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1101058732, now seen corresponding path program 1 times [2023-03-31 01:36:58,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:36:58,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721875739] [2023-03-31 01:36:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:36:58,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:36:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:59,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:36:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:59,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:36:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:59,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-03-31 01:36:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:36:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-03-31 01:37:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:00,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-03-31 01:37:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-03-31 01:37:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:00,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:37:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:00,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-03-31 01:37:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-03-31 01:37:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:00,175 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 01:37:00,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:37:00,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721875739] [2023-03-31 01:37:00,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721875739] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:37:00,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:37:00,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:37:00,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519601718] [2023-03-31 01:37:00,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:37:00,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:37:00,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:37:00,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:37:00,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:37:00,177 INFO L87 Difference]: Start difference. First operand 882 states and 1515 transitions. Second operand has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 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) [2023-03-31 01:37:08,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:37:08,726 INFO L93 Difference]: Finished difference Result 1646 states and 2809 transitions. [2023-03-31 01:37:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-03-31 01:37:08,729 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 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 255 [2023-03-31 01:37:08,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:37:08,734 INFO L225 Difference]: With dead ends: 1646 [2023-03-31 01:37:08,734 INFO L226 Difference]: Without dead ends: 1327 [2023-03-31 01:37:08,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:37:08,737 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 3157 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4195 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 4215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:37:08,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 81 Invalid, 4215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4195 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-03-31 01:37:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2023-03-31 01:37:08,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1179. [2023-03-31 01:37:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 1111 states have (on average 1.7416741674167417) internal successors, (1935), 1115 states have internal predecessors, (1935), 32 states have call successors, (32), 32 states have call predecessors, (32), 35 states have return successors, (39), 31 states have call predecessors, (39), 31 states have call successors, (39) [2023-03-31 01:37:09,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 2006 transitions. [2023-03-31 01:37:09,006 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 2006 transitions. Word has length 255 [2023-03-31 01:37:09,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:37:09,006 INFO L495 AbstractCegarLoop]: Abstraction has 1179 states and 2006 transitions. [2023-03-31 01:37:09,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.363636363636363) internal successors, (235), 5 states have internal predecessors, (235), 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) [2023-03-31 01:37:09,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 2006 transitions. [2023-03-31 01:37:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-03-31 01:37:09,011 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:37:09,012 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:09,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:37:09,012 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:37:09,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:37:09,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1818698298, now seen corresponding path program 1 times [2023-03-31 01:37:09,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:37:09,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067998133] [2023-03-31 01:37:09,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:37:09,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:37:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:37:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:37:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:09,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-03-31 01:37:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-03-31 01:37:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-03-31 01:37:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-03-31 01:37:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:10,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-03-31 01:37:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:10,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-03-31 01:37:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-03-31 01:37:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:10,198 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 01:37:10,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:37:10,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067998133] [2023-03-31 01:37:10,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067998133] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:37:10,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:37:10,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:37:10,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371325103] [2023-03-31 01:37:10,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:37:10,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:37:10,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:37:10,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:37:10,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:37:10,200 INFO L87 Difference]: Start difference. First operand 1179 states and 2006 transitions. Second operand has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 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) [2023-03-31 01:37:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:37:17,893 INFO L93 Difference]: Finished difference Result 2663 states and 4512 transitions. [2023-03-31 01:37:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-03-31 01:37:17,894 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 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 259 [2023-03-31 01:37:17,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:37:17,902 INFO L225 Difference]: With dead ends: 2663 [2023-03-31 01:37:17,903 INFO L226 Difference]: Without dead ends: 2047 [2023-03-31 01:37:17,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:37:17,905 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4695 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4101 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 4138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:37:17,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4699 Valid, 75 Invalid, 4138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 4101 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-03-31 01:37:17,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2023-03-31 01:37:18,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1753. [2023-03-31 01:37:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 1621 states have (on average 1.730413325107958) internal successors, (2805), 1633 states have internal predecessors, (2805), 60 states have call successors, (60), 60 states have call predecessors, (60), 71 states have return successors, (83), 59 states have call predecessors, (83), 59 states have call successors, (83) [2023-03-31 01:37:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2948 transitions. [2023-03-31 01:37:18,256 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2948 transitions. Word has length 259 [2023-03-31 01:37:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:37:18,257 INFO L495 AbstractCegarLoop]: Abstraction has 1753 states and 2948 transitions. [2023-03-31 01:37:18,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 21.727272727272727) internal successors, (239), 5 states have internal predecessors, (239), 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) [2023-03-31 01:37:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2948 transitions. [2023-03-31 01:37:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-03-31 01:37:18,261 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:37:18,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:18,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:37:18,261 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:37:18,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:37:18,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1205231444, now seen corresponding path program 1 times [2023-03-31 01:37:18,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:37:18,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307774988] [2023-03-31 01:37:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:37:18,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:37:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:37:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:37:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-03-31 01:37:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-03-31 01:37:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-03-31 01:37:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-03-31 01:37:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-03-31 01:37:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-03-31 01:37:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-03-31 01:37:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:37:19,365 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 01:37:19,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:37:19,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307774988] [2023-03-31 01:37:19,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307774988] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:37:19,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:37:19,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:37:19,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68687257] [2023-03-31 01:37:19,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:37:19,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:37:19,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:37:19,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:37:19,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:37:19,368 INFO L87 Difference]: Start difference. First operand 1753 states and 2948 transitions. Second operand has 11 states, 11 states have (on average 22.09090909090909) internal successors, (243), 5 states have internal predecessors, (243), 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)