/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.3.4.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:28:48,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:28:48,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:28:48,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:28:48,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:28:48,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:28:48,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:28:48,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:28:48,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:28:48,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:28:48,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:28:48,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:28:48,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:28:48,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:28:48,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:28:48,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:28:48,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:28:48,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:28:48,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:28:48,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:28:48,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:28:48,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:28:48,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:28:48,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:28:48,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:28:48,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:28:48,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:28:48,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:28:48,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:28:48,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:28:48,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:28:48,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:28:48,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:28:48,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:28:48,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:28:48,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:28:48,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:28:48,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:28:48,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:28:48,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:28:48,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:28:48,429 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 01:28:48,456 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:28:48,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:28:48,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:28:48,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:28:48,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:28:48,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:28:48,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:28:48,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:28:48,459 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:28:48,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:28:48,460 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:28:48,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:28:48,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:28:48,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:28:48,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:28:48,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:28:48,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:28:48,461 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:28:48,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:28:48,461 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:28:48,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:28:48,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:28:48,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:28:48,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:28:48,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:28:48,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:28:48,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:28:48,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:28:48,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:28:48,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:28:48,463 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:28:48,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:28:48,464 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:28:48,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:28:48,464 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:28:48,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:28:48,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:28:48,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:28:48,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:28:48,736 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:28:48,738 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:28:48,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2023-03-31 01:28:49,945 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:28:50,120 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:28:50,120 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2023-03-31 01:28:50,129 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e31d8e82/048d8bf997be48428c1b972e13de25e1/FLAGb60711300 [2023-03-31 01:28:50,498 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e31d8e82/048d8bf997be48428c1b972e13de25e1 [2023-03-31 01:28:50,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:28:50,502 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:28:50,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:28:50,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:28:50,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:28:50,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3f37e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50, skipping insertion in model container [2023-03-31 01:28:50,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:28:50,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:28:50,722 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.3.4.ufo.BOUNDED-6.pals.c[12764,12777] [2023-03-31 01:28:50,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:28:50,736 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:28:50,781 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.3.4.ufo.BOUNDED-6.pals.c[12764,12777] [2023-03-31 01:28:50,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:28:50,800 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:28:50,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50 WrapperNode [2023-03-31 01:28:50,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:28:50,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:28:50,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:28:50,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:28:50,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:28:50,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:28:50,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:28:50,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:28:50,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (1/1) ... [2023-03-31 01:28:50,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:28:50,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:28:50,893 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 01:28:50,900 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 01:28:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:28:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:28:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:28:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 01:28:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 01:28:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 01:28:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 01:28:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 01:28:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:28:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 01:28:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 01:28:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:28:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:28:51,072 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:28:51,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:28:51,609 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:28:51,617 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:28:51,617 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 01:28:51,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:28:51 BoogieIcfgContainer [2023-03-31 01:28:51,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:28:51,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:28:51,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:28:51,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:28:51,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:28:50" (1/3) ... [2023-03-31 01:28:51,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d07a7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:28:51, skipping insertion in model container [2023-03-31 01:28:51,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:28:50" (2/3) ... [2023-03-31 01:28:51,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d07a7a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:28:51, skipping insertion in model container [2023-03-31 01:28:51,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:28:51" (3/3) ... [2023-03-31 01:28:51,627 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.BOUNDED-6.pals.c [2023-03-31 01:28:51,642 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:28:51,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:28:51,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:28:51,693 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;@51fa9a84, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:28:51,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:28:51,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 125 states have (on average 1.736) internal successors, (217), 126 states have internal predecessors, (217), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-03-31 01:28:51,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-03-31 01:28:51,711 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:28:51,712 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] [2023-03-31 01:28:51,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:28:51,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:28:51,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2044428657, now seen corresponding path program 1 times [2023-03-31 01:28:51,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:28:51,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147336689] [2023-03-31 01:28:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:28:51,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:28:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:28:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:52,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:28:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:52,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:28:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:28:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:52,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:28:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-03-31 01:28:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:52,447 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 01:28:52,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:28:52,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147336689] [2023-03-31 01:28:52,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147336689] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:28:52,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:28:52,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 01:28:52,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457426495] [2023-03-31 01:28:52,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:28:52,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:28:52,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:28:52,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:28:52,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:28:52,493 INFO L87 Difference]: Start difference. First operand has 143 states, 125 states have (on average 1.736) internal successors, (217), 126 states have internal predecessors, (217), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 01:28:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:28:53,367 INFO L93 Difference]: Finished difference Result 228 states and 366 transitions. [2023-03-31 01:28:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 01:28:53,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2023-03-31 01:28:53,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:28:53,383 INFO L225 Difference]: With dead ends: 228 [2023-03-31 01:28:53,383 INFO L226 Difference]: Without dead ends: 144 [2023-03-31 01:28:53,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:28:53,396 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 698 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:28:53,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 65 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-03-31 01:28:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-03-31 01:28:53,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2023-03-31 01:28:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 122 states have (on average 1.721311475409836) internal successors, (210), 122 states have internal predecessors, (210), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-03-31 01:28:53,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 225 transitions. [2023-03-31 01:28:53,471 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 225 transitions. Word has length 58 [2023-03-31 01:28:53,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:28:53,472 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 225 transitions. [2023-03-31 01:28:53,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 01:28:53,473 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 225 transitions. [2023-03-31 01:28:53,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-03-31 01:28:53,481 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:28:53,481 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] [2023-03-31 01:28:53,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:28:53,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:28:53,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:28:53,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1972042099, now seen corresponding path program 1 times [2023-03-31 01:28:53,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:28:53,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174010735] [2023-03-31 01:28:53,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:28:53,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:28:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:28:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:28:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:53,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:28:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:28:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:28:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-03-31 01:28:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:53,964 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 01:28:53,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:28:53,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174010735] [2023-03-31 01:28:53,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174010735] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:28:53,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:28:53,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:28:53,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776022390] [2023-03-31 01:28:53,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:28:53,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:28:53,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:28:53,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:28:53,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:28:53,968 INFO L87 Difference]: Start difference. First operand 138 states and 225 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 01:28:55,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:28:55,322 INFO L93 Difference]: Finished difference Result 232 states and 369 transitions. [2023-03-31 01:28:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:28:55,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2023-03-31 01:28:55,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:28:55,329 INFO L225 Difference]: With dead ends: 232 [2023-03-31 01:28:55,330 INFO L226 Difference]: Without dead ends: 153 [2023-03-31 01:28:55,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:28:55,337 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 711 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:28:55,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 91 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:28:55,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-03-31 01:28:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 138. [2023-03-31 01:28:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 122 states have (on average 1.5) internal successors, (183), 122 states have internal predecessors, (183), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-03-31 01:28:55,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 198 transitions. [2023-03-31 01:28:55,368 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 198 transitions. Word has length 58 [2023-03-31 01:28:55,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:28:55,368 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 198 transitions. [2023-03-31 01:28:55,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 01:28:55,369 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 198 transitions. [2023-03-31 01:28:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-03-31 01:28:55,374 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:28:55,374 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] [2023-03-31 01:28:55,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:28:55,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:28:55,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:28:55,375 INFO L85 PathProgramCache]: Analyzing trace with hash 182326474, now seen corresponding path program 1 times [2023-03-31 01:28:55,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:28:55,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109318270] [2023-03-31 01:28:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:28:55,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:28:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:55,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:28:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:28:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:55,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:28:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:55,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 01:28:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:55,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-03-31 01:28:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:28:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:55,787 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 01:28:55,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:28:55,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109318270] [2023-03-31 01:28:55,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109318270] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:28:55,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:28:55,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:28:55,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965344807] [2023-03-31 01:28:55,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:28:55,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:28:55,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:28:55,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:28:55,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:28:55,789 INFO L87 Difference]: Start difference. First operand 138 states and 198 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:28:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:28:57,185 INFO L93 Difference]: Finished difference Result 292 states and 439 transitions. [2023-03-31 01:28:57,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:28:57,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 84 [2023-03-31 01:28:57,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:28:57,188 INFO L225 Difference]: With dead ends: 292 [2023-03-31 01:28:57,188 INFO L226 Difference]: Without dead ends: 219 [2023-03-31 01:28:57,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-03-31 01:28:57,190 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 479 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:28:57,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 71 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 01:28:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-03-31 01:28:57,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 200. [2023-03-31 01:28:57,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 173 states have (on average 1.5144508670520231) internal successors, (262), 174 states have internal predecessors, (262), 13 states have call successors, (13), 13 states have call predecessors, (13), 13 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2023-03-31 01:28:57,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 290 transitions. [2023-03-31 01:28:57,217 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 290 transitions. Word has length 84 [2023-03-31 01:28:57,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:28:57,218 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 290 transitions. [2023-03-31 01:28:57,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:28:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 290 transitions. [2023-03-31 01:28:57,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-03-31 01:28:57,220 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:28:57,220 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] [2023-03-31 01:28:57,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:28:57,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:28:57,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:28:57,221 INFO L85 PathProgramCache]: Analyzing trace with hash 549802130, now seen corresponding path program 1 times [2023-03-31 01:28:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:28:57,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090452119] [2023-03-31 01:28:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:28:57,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:28:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:57,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:28:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:28:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:57,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:28:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:57,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:28:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:57,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 01:28:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 01:28:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:57,593 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 01:28:57,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:28:57,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090452119] [2023-03-31 01:28:57,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090452119] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:28:57,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:28:57,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:28:57,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769350456] [2023-03-31 01:28:57,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:28:57,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:28:57,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:28:57,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:28:57,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:28:57,595 INFO L87 Difference]: Start difference. First operand 200 states and 290 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:28:58,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:28:58,876 INFO L93 Difference]: Finished difference Result 486 states and 722 transitions. [2023-03-31 01:28:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-31 01:28:58,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2023-03-31 01:28:58,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:28:58,878 INFO L225 Difference]: With dead ends: 486 [2023-03-31 01:28:58,878 INFO L226 Difference]: Without dead ends: 351 [2023-03-31 01:28:58,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:28:58,881 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 807 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:28:58,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 69 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:28:58,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-03-31 01:28:58,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 323. [2023-03-31 01:28:58,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 273 states have (on average 1.534798534798535) internal successors, (419), 277 states have internal predecessors, (419), 23 states have call successors, (23), 23 states have call predecessors, (23), 26 states have return successors, (32), 22 states have call predecessors, (32), 22 states have call successors, (32) [2023-03-31 01:28:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 474 transitions. [2023-03-31 01:28:58,967 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 474 transitions. Word has length 86 [2023-03-31 01:28:58,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:28:58,967 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 474 transitions. [2023-03-31 01:28:58,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:28:58,968 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 474 transitions. [2023-03-31 01:28:58,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-03-31 01:28:58,969 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:28:58,969 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] [2023-03-31 01:28:58,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:28:58,969 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:28:58,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:28:58,970 INFO L85 PathProgramCache]: Analyzing trace with hash 647831930, now seen corresponding path program 1 times [2023-03-31 01:28:58,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:28:58,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742879007] [2023-03-31 01:28:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:28:58,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:28:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:59,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:28:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:28:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:28:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:28:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:59,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-03-31 01:28:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:59,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-03-31 01:28:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:28:59,356 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 01:28:59,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:28:59,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742879007] [2023-03-31 01:28:59,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742879007] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:28:59,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:28:59,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:28:59,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402266034] [2023-03-31 01:28:59,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:28:59,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:28:59,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:28:59,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:28:59,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:28:59,358 INFO L87 Difference]: Start difference. First operand 323 states and 474 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:29:00,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:00,658 INFO L93 Difference]: Finished difference Result 871 states and 1292 transitions. [2023-03-31 01:29:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-31 01:29:00,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 88 [2023-03-31 01:29:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:00,664 INFO L225 Difference]: With dead ends: 871 [2023-03-31 01:29:00,664 INFO L226 Difference]: Without dead ends: 613 [2023-03-31 01:29:00,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:29:00,666 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1039 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:00,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 63 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:29:00,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-03-31 01:29:00,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 559. [2023-03-31 01:29:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 461 states have (on average 1.5336225596529285) internal successors, (707), 473 states have internal predecessors, (707), 43 states have call successors, (43), 43 states have call predecessors, (43), 54 states have return successors, (70), 42 states have call predecessors, (70), 42 states have call successors, (70) [2023-03-31 01:29:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 820 transitions. [2023-03-31 01:29:00,744 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 820 transitions. Word has length 88 [2023-03-31 01:29:00,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:00,745 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 820 transitions. [2023-03-31 01:29:00,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:29:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 820 transitions. [2023-03-31 01:29:00,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-03-31 01:29:00,746 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:00,746 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] [2023-03-31 01:29:00,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:29:00,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:00,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:00,747 INFO L85 PathProgramCache]: Analyzing trace with hash 252360514, now seen corresponding path program 1 times [2023-03-31 01:29:00,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:00,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91294097] [2023-03-31 01:29:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:00,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:01,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:29:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:01,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:29:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:01,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-03-31 01:29:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:29:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:01,373 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 01:29:01,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:01,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91294097] [2023-03-31 01:29:01,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91294097] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:01,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:01,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 01:29:01,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746871019] [2023-03-31 01:29:01,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:01,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:29:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:01,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:29:01,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:29:01,377 INFO L87 Difference]: Start difference. First operand 559 states and 820 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 9 states have internal predecessors, (76), 3 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 01:29:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:06,261 INFO L93 Difference]: Finished difference Result 4008 states and 6107 transitions. [2023-03-31 01:29:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-03-31 01:29:06,261 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 9 states have internal predecessors, (76), 3 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 90 [2023-03-31 01:29:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:06,282 INFO L225 Difference]: With dead ends: 4008 [2023-03-31 01:29:06,282 INFO L226 Difference]: Without dead ends: 3514 [2023-03-31 01:29:06,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1058 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2023-03-31 01:29:06,288 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2387 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:06,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 127 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-03-31 01:29:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2023-03-31 01:29:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3198. [2023-03-31 01:29:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 2579 states have (on average 1.5381930981000387) internal successors, (3967), 2672 states have internal predecessors, (3967), 263 states have call successors, (263), 263 states have call predecessors, (263), 355 states have return successors, (612), 262 states have call predecessors, (612), 262 states have call successors, (612) [2023-03-31 01:29:06,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 4842 transitions. [2023-03-31 01:29:06,736 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 4842 transitions. Word has length 90 [2023-03-31 01:29:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:06,740 INFO L495 AbstractCegarLoop]: Abstraction has 3198 states and 4842 transitions. [2023-03-31 01:29:06,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 9 states have internal predecessors, (76), 3 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 01:29:06,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 4842 transitions. [2023-03-31 01:29:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 01:29:06,744 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:06,744 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] [2023-03-31 01:29:06,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:29:06,744 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:06,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash 290229565, now seen corresponding path program 1 times [2023-03-31 01:29:06,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:06,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20565069] [2023-03-31 01:29:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:06,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:07,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:29:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:07,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:29:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:07,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-03-31 01:29:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:07,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:29:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:07,215 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 01:29:07,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:07,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20565069] [2023-03-31 01:29:07,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20565069] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:07,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:07,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:29:07,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299329864] [2023-03-31 01:29:07,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:07,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:29:07,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:07,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:29:07,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:29:07,221 INFO L87 Difference]: Start difference. First operand 3198 states and 4842 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 01:29:10,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:10,353 INFO L93 Difference]: Finished difference Result 11622 states and 17719 transitions. [2023-03-31 01:29:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-03-31 01:29:10,354 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 91 [2023-03-31 01:29:10,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:10,399 INFO L225 Difference]: With dead ends: 11622 [2023-03-31 01:29:10,399 INFO L226 Difference]: Without dead ends: 8489 [2023-03-31 01:29:10,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 01:29:10,411 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 1583 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:10,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 125 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-03-31 01:29:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2023-03-31 01:29:11,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7795. [2023-03-31 01:29:11,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7795 states, 6215 states have (on average 1.5174577634754627) internal successors, (9431), 6469 states have internal predecessors, (9431), 663 states have call successors, (663), 663 states have call predecessors, (663), 916 states have return successors, (1692), 662 states have call predecessors, (1692), 662 states have call successors, (1692) [2023-03-31 01:29:11,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7795 states to 7795 states and 11786 transitions. [2023-03-31 01:29:11,437 INFO L78 Accepts]: Start accepts. Automaton has 7795 states and 11786 transitions. Word has length 91 [2023-03-31 01:29:11,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:11,438 INFO L495 AbstractCegarLoop]: Abstraction has 7795 states and 11786 transitions. [2023-03-31 01:29:11,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-31 01:29:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7795 states and 11786 transitions. [2023-03-31 01:29:11,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 01:29:11,441 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:11,442 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] [2023-03-31 01:29:11,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:29:11,442 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:11,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:11,443 INFO L85 PathProgramCache]: Analyzing trace with hash -359746124, now seen corresponding path program 1 times [2023-03-31 01:29:11,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:11,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572987956] [2023-03-31 01:29:11,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:11,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:11,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:29:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:29:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-03-31 01:29:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 01:29:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:11,747 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 01:29:11,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:11,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572987956] [2023-03-31 01:29:11,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572987956] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:11,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:11,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:29:11,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82699860] [2023-03-31 01:29:11,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:11,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:29:11,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:29:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:29:11,749 INFO L87 Difference]: Start difference. First operand 7795 states and 11786 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:29:15,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:15,332 INFO L93 Difference]: Finished difference Result 26318 states and 40704 transitions. [2023-03-31 01:29:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 01:29:15,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 91 [2023-03-31 01:29:15,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:15,432 INFO L225 Difference]: With dead ends: 26318 [2023-03-31 01:29:15,433 INFO L226 Difference]: Without dead ends: 18588 [2023-03-31 01:29:15,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:29:15,462 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 1060 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:15,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 120 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-03-31 01:29:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18588 states. [2023-03-31 01:29:17,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18588 to 17143. [2023-03-31 01:29:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17143 states, 13684 states have (on average 1.4961268634902076) internal successors, (20473), 14224 states have internal predecessors, (20473), 1459 states have call successors, (1459), 1459 states have call predecessors, (1459), 1999 states have return successors, (3805), 1459 states have call predecessors, (3805), 1458 states have call successors, (3805) [2023-03-31 01:29:17,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17143 states to 17143 states and 25737 transitions. [2023-03-31 01:29:17,554 INFO L78 Accepts]: Start accepts. Automaton has 17143 states and 25737 transitions. Word has length 91 [2023-03-31 01:29:17,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:17,555 INFO L495 AbstractCegarLoop]: Abstraction has 17143 states and 25737 transitions. [2023-03-31 01:29:17,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:29:17,555 INFO L276 IsEmpty]: Start isEmpty. Operand 17143 states and 25737 transitions. [2023-03-31 01:29:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 01:29:17,562 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:17,562 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] [2023-03-31 01:29:17,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:29:17,563 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:17,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:17,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1230719811, now seen corresponding path program 1 times [2023-03-31 01:29:17,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:17,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168163049] [2023-03-31 01:29:17,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:17,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:17,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:17,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:29:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:17,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:29:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-03-31 01:29:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:17,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 01:29:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:17,846 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 01:29:17,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:17,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168163049] [2023-03-31 01:29:17,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168163049] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:17,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:17,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:29:17,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811760985] [2023-03-31 01:29:17,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:17,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:29:17,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:17,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:29:17,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:29:17,860 INFO L87 Difference]: Start difference. First operand 17143 states and 25737 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:29:22,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:22,963 INFO L93 Difference]: Finished difference Result 56599 states and 86896 transitions. [2023-03-31 01:29:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 01:29:22,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 91 [2023-03-31 01:29:22,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:23,160 INFO L225 Difference]: With dead ends: 56599 [2023-03-31 01:29:23,161 INFO L226 Difference]: Without dead ends: 40086 [2023-03-31 01:29:23,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:29:23,220 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 1031 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:23,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 120 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-03-31 01:29:23,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40086 states. [2023-03-31 01:29:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40086 to 37434. [2023-03-31 01:29:27,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37434 states, 29876 states have (on average 1.47034408890079) internal successors, (43928), 31025 states have internal predecessors, (43928), 3203 states have call successors, (3203), 3203 states have call predecessors, (3203), 4354 states have return successors, (8553), 3205 states have call predecessors, (8553), 3202 states have call successors, (8553) [2023-03-31 01:29:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37434 states to 37434 states and 55684 transitions. [2023-03-31 01:29:27,228 INFO L78 Accepts]: Start accepts. Automaton has 37434 states and 55684 transitions. Word has length 91 [2023-03-31 01:29:27,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:29:27,228 INFO L495 AbstractCegarLoop]: Abstraction has 37434 states and 55684 transitions. [2023-03-31 01:29:27,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:29:27,229 INFO L276 IsEmpty]: Start isEmpty. Operand 37434 states and 55684 transitions. [2023-03-31 01:29:27,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 01:29:27,246 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:29:27,247 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] [2023-03-31 01:29:27,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 01:29:27,247 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:29:27,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:29:27,247 INFO L85 PathProgramCache]: Analyzing trace with hash -432132682, now seen corresponding path program 1 times [2023-03-31 01:29:27,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:29:27,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110636178] [2023-03-31 01:29:27,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:29:27,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:29:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:29:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:29:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 01:29:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-03-31 01:29:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-03-31 01:29:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 01:29:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:29:27,511 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 01:29:27,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:29:27,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110636178] [2023-03-31 01:29:27,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110636178] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:29:27,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:29:27,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:29:27,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716331419] [2023-03-31 01:29:27,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:29:27,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:29:27,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:29:27,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:29:27,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:29:27,513 INFO L87 Difference]: Start difference. First operand 37434 states and 55684 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-03-31 01:29:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:29:36,926 INFO L93 Difference]: Finished difference Result 128336 states and 196148 transitions. [2023-03-31 01:29:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 01:29:36,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (8), 6 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 91 [2023-03-31 01:29:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:29:37,424 INFO L225 Difference]: With dead ends: 128336 [2023-03-31 01:29:37,424 INFO L226 Difference]: Without dead ends: 91275 [2023-03-31 01:29:37,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:29:37,550 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 872 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:29:37,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 127 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-03-31 01:29:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91275 states.